fc-selenite: src/cs/drivers/drv_app/ffs/board/fsck.c annotate

annotate src/cs/drivers/drv_app/ffs/board/fsck.c @ 191:4725fe5932c4

FFS journal_init() bugfix from Magnetite

author	Mychaela Falconia <falcon@freecalypso.org>
date	Fri, 22 May 2020 18:04:44 +0000
parents	b6a5e36de839
children

rev	line source
0 b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2 * Flash File System (ffs)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 *
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 * FFS file system integrity checking, journalling, init and exit
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 *
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 * $Id: fsck.c 1.3.1.1.1.33 Thu, 08 Jan 2004 15:05:23 +0100 tsj $
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 *
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 #ifndef TARGET
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12 #include "ffs.cfg"
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	15 #include <string.h>
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	16 #include <assert.h>
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 #include "ffs/ffs.h"
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	19 #include "ffs/board/core.h"
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	20 #include "ffs/board/drv.h"
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	21 #include "ffs/board/ffstrace.h"
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	23 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24 * Functions
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	25 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	26
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	27 bref_t blocks_fsck(void);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	28 iref_t inodes_fsck(void);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	29
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	30 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	31 * Init and Exit
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	32 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	33
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	34 effs_t ffs_initialize(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 bref_t b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 struct inode_s *ip;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 int i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	39
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	40 tlw(led_set(0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	41 tlw(led_on(LED_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	42 ttw(str(TTrInit, "initialize {" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 tw(tr(TR_BEGIN, TrFsck, "ffs_initialize() {\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	44
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	45 // default to non-initialized ffs
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	46 fs.root = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	47 fs.debug[0] = fs.debug[1] = fs.debug[2] = fs.debug[3] = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	48 fs.testflags = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	49
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	50 tlw(led_on(LED_DRV_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	51 fs.initerror = ffsdrv_init(); // read manufacturer and device ID
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	52 tlw(led_off(LED_DRV_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	53 if (fs.initerror < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54 tlw(led_off(0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 ttw(ttr(TTrInit, "} %d" NL, fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 for (i = 0; i < 2; i++)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 tlw(led_on(LED_BLOCKS_FSCK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63 fs.initerror = EFFS_INVALID;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 fs.initerror = b = blocks_fsck();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 tlw(led_off(LED_BLOCKS_FSCK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 if (fs.initerror < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 tlw(led_off(0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	69 ttw(ttr(TTrInit, "} %d" NL, fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 tlw(led_on(LED_INODES_FSCK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 fs.initerror = EFFS_INVALID;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 fs.initerror = inodes_fsck();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	76 tlw(led_off(LED_INODES_FSCK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77 if (fs.initerror < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78 tlw(led_off(0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 ttw(ttr(TTrInit, "} %d" NL, fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84 // parse the fs options in the root inode's name
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 ip = inode_addr(fs.root);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 fs_params_init(addr2name(offset2addr(location2offset(ip->location))));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 if ((fs.initerror = journal_init(fs.ijournal)) == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	92 // Init all file_descriptors to zero
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	93 memset(fs.fd, 0, sizeof(struct file_descriptor_s) * fs.fd_max);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 // If blocks_fsck() found a block that needs cleaning, we do it, now
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96 // that all the file system has been initialized.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 if (b > 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	98 block_clean(b - 1);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	99 block_free(b - 1);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	100 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	101
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	102 statistics_init();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	103
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	104 // In target, we do this before entering the task event loop...
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	105 // Otherwise we would in some cases impose a long reboot delay if we did
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	106 // it here. If we test in target it is nessesary to call
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	107 // blocks_reclaim() anyway because we re-init ffs.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	108
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	109 #if (TARGET == 1) //NOTEME: can this be done in another/better way?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	110 #if (WITH_TFFS == 1)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	111 blocks_reclaim();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	112 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	113 #else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	114 blocks_reclaim();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	115 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	116 tlw(led_off(LED_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	117 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_OK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	118 ttw(str(TTrInit, "} 0" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	119
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	120 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	123 void fs_params_init(const char *p)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 uint8 opt, digit;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 uint32 n;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 int numdatablocks;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 tw(tr(TR_BEGIN, TrFsck, "fsparams_init('%s') {\n", p));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131 // Compiled default values
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 fs.filename_max = FFS_FILENAME_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 fs.path_depth_max = FFS_PATH_DEPTH_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 fs.fd_max = FFS_FD_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 fs.journal_size = FFS_JOURNAL_SIZE_IN256THS;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136 fs.flags = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 fs.testflags = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	139 // Flag that it not has been changed by an input arg.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	140 fs.block_files_max = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	141
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	142 // The default lost bytes percentage of a block before it is reclaimed
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	143 // is approx. 90%.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	144 fs.lost_threshold = (256 - 256/10);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	145
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	146 // If we only have two blocks, we cannot make any reclaims and thus we
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	147 // have a write-once FFS system.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	148 fs.blocks_free_min = (dev.numblocks > 2 ? 1 : 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	149
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	150 // Don't count free and inodes blocks
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	151 numdatablocks = dev.numblocks - fs.blocks_free_min - 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	152
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	153 // Abselute max number of inodes.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	154 fs.inodes_max = dev.blocksize / sizeof(struct inode_s);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	155 if (fs.inodes_max > FFS_INODES_MAX)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	156 fs.inodes_max = FFS_INODES_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	157
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	158 // MUST be true: objects_max <= inodes_max - block_files_max, this is do
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	159 // to the fact that we always need to have block_files_max number of
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	160 // inodes left when we run a data reclaim.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	161 fs.objects_max = fs.inodes_max / 2;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	162
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	163 // Find a suitable chunk_size
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164 if (dev.numblocksdev.blocksize > 10241024)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	165 fs.chunk_size_max = 8192;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	166 else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	167 fs.chunk_size_max = (2048 > (dev.blocksize / 8)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	168 ? (dev.blocksize / 8)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	169 : 2048);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	170 fs.fd_buf_size = fs.chunk_size_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	171
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172 fs.journal_size = fs.journal_size * dev.blocksize / 256;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	173 if (fs.journal_size < FFS_JOURNAL_SIZE_MIN)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	174 fs.journal_size = FFS_JOURNAL_SIZE_MIN;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	175
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	176 // Set it just below the same amount as entries in one journal file
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	177 fs.block_files_max = (fs.journal_size / sizeof(struct journal_s)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178 - FFS_JOURNAL_MARGIN - 2);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	179
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	180 // MUST be true: block_files_max < objects_max / 2. But if we want
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	181 // to reach objects_max must block_files_max >= objects_max / number
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	182 // of datablocks, however a big block_files_max require higher
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	183 // reserved_space.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	184 if (fs.block_files_max > fs.objects_max / 2)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	185 fs.block_files_max = fs.objects_max / 2 - 4;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	186
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	187 // Are we able to reach objects_max? If not then lower the number
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	188 if (fs.objects_max > numdatablocks * fs.block_files_max)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	189 fs.objects_max = numdatablocks * fs.block_files_max + 10;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	190
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	191 // Absolute minimum is RESERVED_LOW the rest is 'workspace' which is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	192 // needed to have a reasonable performance.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	193 fs.reserved_space = dev.blocksize / 2 +
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	194 numdatablocks * dev.blocksize / 16 + RESERVED_LOW;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	195
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	196 // skip to first char following second slash in name
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	197 n = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	198 while (*p) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	199 if (*p++ == '/') {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200 n++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	201 if (n == 2)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	202 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	203 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	204 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	205 if (n == 2) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	206 // while still options to process...
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	207 while (*p) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	208 opt = *p++; // save option letter for later
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209 // collect option value...
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	210 n = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	211 while ((digit = *p)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	212 if (digit >= '0' && digit <= '9') {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	213 n = 10 * n + digit - '0';
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	214 p++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	215 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	216 else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	217 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	218 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	219 switch (opt) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	220 case 'b': dev.numblocks = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	221 case 'm': fs.blocks_free_min = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	222 case 'i': fs.inodes_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	223 case 'o': fs.objects_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	224 case 'n': fs.filename_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	225 case 'f': fs.block_files_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	226 case 'd': fs.fd_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	227 case 's': fs.fd_buf_size = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	228 case 't': fs.lost_threshold = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	229 case 'z': fs.flags = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	230 case 'j': fs.journal_size = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	231 case 'c': fs.chunk_size_max = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	232 case 'r': fs.reserved_space = n; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	233 // d = &fs.path_depth_max; // really necessary?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	234 default:
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	235 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	236 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	237 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	238 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	239
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	240 // Now recompute a few parameters based on adjusted values.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	241
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	242 // No journal file thuse no reserved space.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	243 if (fs.journal_size == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	244 fs.block_files_max = fs.objects_max / 2;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	245 fs.reserved_space = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	246 fs.block_files_reserved = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	247 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	248
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	249 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	250 // If journal size is less than minimum must it have been changed by an
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	251 // input arg, recalculate.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	252 if (fs.journal_size < FFS_JOURNAL_SIZE_MIN)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	253 fs.journal_size = fs.journal_size * dev.blocksize / 256;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	254
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	255 if (fs.reserved_space < RESERVED_LOW)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	256 fs.reserved_space = fs.reserved_space * dev.blocksize / 256;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	257
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	258 // Only one reserved is needed however we want a margin and set it to two
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	259 fs.block_files_reserved = 2;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	260 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	261
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	262 // Don't count free blocks, inode block, reserved space, block headers
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	263 // and the size of one filename.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	264 fs.filesize_max = numdatablocks * dev.blocksize - fs.reserved_space -
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	265 numdatablocks * BHEADER_SIZE - FFS_FILENAME_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	266
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	267 // Furthermore don't count the overhead from each chunk (alignment)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	268 fs.filesize_max -= ((fs.filesize_max / fs.chunk_size_max) * dev.atomsize
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	269 + dev.atomsize);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	270
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	271 // NOTEME: chunk_size_min is never used
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	272 fs.chunk_size_min = numdatablocks / fs.objects_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	273
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	274 tw(tr(TR_FUNC, TrFsck, "dev.numblocks = %d\n", dev.numblocks));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	275 tw(tr(TR_FUNC, TrFsck, "fs.blocks_free_min = %d\n", fs.blocks_free_min));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	276 tw(tr(TR_FUNC, TrFsck, "fs.inodes_max = %d\n", fs.inodes_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	277 tw(tr(TR_FUNC, TrFsck, "fs.objects_max = %d\n", fs.objects_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	278 tw(tr(TR_FUNC, TrFsck, "fs.block_files_max = %d\n", fs.block_files_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	279 tw(tr(TR_FUNC, TrFsck, "fs.block_files_reserved = %d\n", fs.block_files_reserved));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	280 tw(tr(TR_FUNC, TrFsck, "fs.chunk_size_max = %d\n", fs.chunk_size_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	281 tw(tr(TR_FUNC, TrFsck, "fs.filename_max = %d\n", fs.filename_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	282 tw(tr(TR_FUNC, TrFsck, "fs.lost_threshold = %d\n", fs.lost_threshold));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	283 tw(tr(TR_FUNC, TrFsck, "fs.path_depth_max = %d\n", fs.path_depth_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	284 tw(tr(TR_FUNC, TrFsck, "fs.journal_size = %d\n", fs.journal_size));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	285 tw(tr(TR_FUNC, TrFsck, "fs.reserved_space = %d\n", fs.reserved_space));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	286 tw(tr(TR_FUNC, TrFsck, "fs.fd_max = %d\n", fs.fd_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	287 tw(tr(TR_FUNC, TrFsck, "fs.fd_buf_size = 0x%02x\n", fs.fd_buf_size));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	288 tw(tr(TR_FUNC, TrFsck, "fs.flags = 0x%02x\n", fs.flags));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	289 tw(tr(TR_END, TrFsck, "}\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	290 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	291
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	292 // TODO: Finish pending commits/writes.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	293 effs_t ffs_exit(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	294 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	295 tw(tr(TR_FUNC, TrFsck, "exit() 0\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	296
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	297
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	298 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	299 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	300
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	301 #if 0 // Not used in this version
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	302 // Purely for core internal use; Read a file.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	303 effs_t file_read_int(const char path, void src, int size)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	304 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	305 if (fs.initerror != EFFS_OK)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	306 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	307
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	308 return object_read(path, src, size, 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	309 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	310
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	311 // Purely for core internal use; Update a file.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	312 effs_t file_update(const char path, void src, int size)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	313 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	314 char *name;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	315 iref_t i, dir;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	316
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	317 if (fs.initerror != EFFS_OK)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	319
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	320 if ((i = object_lookup(path, &name, &dir)) < 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	321 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	322
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	323 journal_begin(i);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	324
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	325 if ((i = object_create(name, src, size, -dir)) < 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	326 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	327
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	328 journal_end(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	329
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	330 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	331 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	332 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	333
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	334 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	335 * blocks_fsck()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	336 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	337
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	338 blocksize_t block_used(bref_t b)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	339 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	340 blocksize_t used;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	341 uint32 p, q;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	342
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	343 tlw(led_toggle(LED_BLOCKS_FSCK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	344
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	345 // We search backwards through block to find the last used byte and
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	346 // thus the total number of used bytes. Note that this code depends
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	347 // on the fact that an erased flash location is 0xFF!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	348 p = (uint32 *) offset2addr(dev.binfo[b].offset);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	349 for (q = p + dev.blocksize/4 - 4; q > p; q -= 4) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	350 if ( ~(q[0] & q[1] & q[2] & q[3]) )
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	351 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	352 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	353
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	354 if ( ~(q[0] & q[1] & q[2] & q[3]) )
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	355 q += 4;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	356 used = atomalign((char ) q - (char ) p);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	357
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	358 tw(tr(TR_FUNC, TrFsckLow, "ffs_block_used(%d) %d\n", b, used));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	359
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	360 return used;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	361 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	362
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	363
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	364 age_t age_distance(age_t x, age_t y)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	365 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	366 age_t a = x - y;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	367
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	368 if (a > 0x8000)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	369 a = -a;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	370
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	371 tw(tr(TR_FUNC, TrFsckLow, "age_distance(%d, %d) %d\n", x, y, a));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	372
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	373 return a;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	374 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	375
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	376 // For each ffs block, we initialise the basic bstat array information,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	377 // namely the number of used bytes. Also, we locate the inodes block and if
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	378 // a previous operation was interrupted by a powerfail, we clean it up.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	379 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	380 // We return EFFS_OK if all is fine. If a positive integer is returned, it
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	381 // denotes a block that needs to be cleaned by block_clean() once FFS
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	382 // has been properly intialized (we actually return the block number + 1
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	383 // because otherwise it would clash with EFFS_OK return code). If no inodes
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	384 // block is found or another error occurs, we return the error code.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	385 bref_t blocks_fsck(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	386 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	387 bref_t b, b_to_clean, b_inode_lost;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	388 int age_valid;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	389 age_t age_min, age_max, age_dist, age_dist_min, age_dist_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	390 struct block_header_s *bhp;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	391 struct block_header_old_s *obhp;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	392
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	393 ttw(str(TTrInitLow, "blocks_fsck {" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	394 tw(tr(TR_BEGIN, TrFsck, "blocks_fsck() {\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	395
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	396 // initialize ages to the illegal/unset value
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	397 age_min = age_max = age_dist = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	398
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	399 fs.format = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	400 fs.inodes = -1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	401 fs.newinodes = -1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	402 b_inode_lost = -1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	403 b_to_clean = EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	404
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	405 for (b = 0; b < dev.numblocks; b++)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	406 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	407 tlw(led_toggle(LED_DRV_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	408
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	409 // read block flags from flash
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	410 bhp = (struct block_header_s *) offset2addr(dev.binfo[b].offset);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	411 obhp = (struct block_header_old_s *) bhp;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	412
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	413 bstat[b].used = dev.blocksize;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	414 bstat[b].lost = bstat[b].used;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	415 bstat[b].flags = bhp->flags;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	416 bstat[b].objects = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	417
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	418 age_valid = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	419
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	420 if (bhp->magic_low != BLOCK_MAGIC_LOW \|\|
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	421 bhp->magic_high != BLOCK_MAGIC_HIGH) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	422 // The block magic as bad! It could be because the flash
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	423 // memory map is incorrect or because another application has
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	424 // spuriously written to the flash or ... who knows what. First
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	425 // we check to see if the reason is that we are dealing with a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	426 // (really) old ffs format version.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	427 if (obhp->magic_low == OLD_BLOCK_MAGIC_LOW &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	428 obhp->magic_high == OLD_FFS_FORMAT_VERSION) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	429 tw(tr(TR_FUNC, TrFsck, "OLD "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	430 fs.format = obhp->magic_high;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	431 // We simulate that all the blocks are data blocks, in order
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	432 // to have some well-defined state that preformat() can work
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	433 // on. Later we will return EFFS_BADFORMAT and otherwise
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	434 // leave everything as it is, without modifying anything!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	435 bstat[b].flags = BF_IS_DATA;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	436 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	437 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	438 // Quickly test if block is in empty state. We do not make a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	439 // full check with block_used() because that takes too
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	440 // long --- we let preformat() do that.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	441 if (bhp->magic_low == FLASH_NULL16 &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	442 bhp->magic_high == FLASH_NULL16 &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	443 bhp->age == FLASH_NULL16 &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	444 bhp->version == FLASH_NULL16 &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	445 bhp->flags == FLASH_NULL16)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	446 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	447 bstat[b].used = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	448 bstat[b].lost = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	449 bstat[b].flags = BF_IS_EMPTY;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	450 tw(tr(TR_FUNC, TrFsck, "EMPTY "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	451 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	452 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	453 // If the block is not free, it is probably corrupted.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	454 // Thus we reset its age and free it.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	455 tw(tr(TR_FUNC, TrFsck, "magic = 0x%08x\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	456 bhp->magic_low \| (bhp->magic_high << 16)));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	457 ffsdrv.write_halfword(&bhp->age, 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	458 block_free(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	459 tw(tr(TR_FUNC, TrFsck, "BAD "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	460 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	461 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	462 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	463 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	464 fs.format = bhp->version;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	465 age_valid = 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	466
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	467 if (!is_block(b, BF_IS_FREE)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	468 bstat[b].used = block_used(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	469 bstat[b].lost = bstat[b].used - BHEADER_SIZE;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	470 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	471
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	472 if (is_block(b, BF_IS_FREE)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	473 // The only case where we do not call block_used() is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	474 // when the block is truly free.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	475 bstat[b].used = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	476 bstat[b].lost = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	477 tw(tr(TR_FUNC, TrFsck, "FREE "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	478 ttw(ttr(TTrInitLow, "FREE" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	479
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	480 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	481 else if (is_block(b, BF_IS_DATA)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	482 tw(tr(TR_FUNC, TrFsck, "DATA "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	483 ttw(ttr(TTrInitLow, "DATA" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	484 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	485 else if (is_block(b, BF_IS_CLEANING)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	486 // Here we schedule a block_clean(). Note that we can
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	487 // and do not execute the block cleaning now, as the info
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	488 // that block_clean() needs is not at all ready at this
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	489 // point in the initialization. So we set a flag and then
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	490 // clean the block at the end of ffs_initialize()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	491 tw(tr(TR_FUNC, TrFsck, "CLEANING "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	492 ttw(ttr(TTrInitLow, "CLEANING" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	493 b_to_clean = b + 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	494 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	495 else if (is_block(b, BF_IS_COPYING)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	496 tw(tr(TR_FUNC, TrFsck, "COPYING "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	497 ttw(ttr(TTrInitLow, "COPYING" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498 fs.newinodes = b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	499 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	500 else if (is_block(b, BF_IS_INODES)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	501 tw(tr(TR_FUNC, TrFsck, "INODES "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	502 ttw(ttr(TTrInitLow, "INODES" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	503 fs.inodes = b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	504 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	505 else if (is_block(b, BF_IS_INODES_LOST)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	506 tw(tr(TR_FUNC, TrFsck, "INODESLOST"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 ttw(ttr(TTrInitLow, "INODESLOST" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	508 b_inode_lost = b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	509 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	510 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	511 block_free(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	512 tw(tr(TR_FUNC, TrFsck, "INVALID "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	513 ttw(ttr(TTrInitLow, "INVALID" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	514 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	515 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	516
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	517 tw(tr(TR_NULL, TrFsck, " %2d: (0x%05x) %02x, used = %6d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	518 b, dev.binfo[b].offset, bstat[b].flags & 0xFF, bstat[b].used));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	519
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	520 if (age_valid) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	521 if (age_min == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	522 // Initialize minimum and maximum block ages
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	523 age_min = age_max = bhp->age;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	524 tw(tr(TR_FUNC, TrFsckLow, "age_min/max = %d\n", age_min));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	525 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	526 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	527 age_dist_min = age_distance(bhp->age, age_min);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	528 age_dist_max = age_distance(bhp->age, age_max);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	529 if (age_dist_min > age_dist \|\|
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	530 age_dist_max > age_dist) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	531 if (age_dist_max > age_dist_min) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	532 age_dist = age_dist_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	533 age_min = bhp->age;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	534 tw(tr(TR_FUNC, TrFsckLow, "age_min = %d (dist = %d)\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	535 age_min, age_dist));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	536 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	537 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	538 age_dist = age_dist_min;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	539 age_max = bhp->age;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	540 tw(tr(TR_FUNC, TrFsckLow, "age_max = %d (dist = %d)\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	541 age_max, age_dist));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	542 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	543 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	544 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	545 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	546 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	547 tlw(led_off(LED_DRV_INIT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	548 tw(tr(TR_FUNC, TrFsck, "age min, max, max-min = %d, %d, %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	549 age_min, age_max, (uint16) (age_max-age_min)));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	550 // If age_max is untouched is is because all blocks were in the 'Empty'
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	551 // state. In this case we let the age be as it is (0xFFFF).
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	552 if (age_max == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	553 age_max = age_min = BLOCK_AGE_MAX;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	554
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	555 // Handle age wrap around thus ensuring fs.age_max is set correctly. We
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	556 // have to type-cast the whole computation, otherwise it will be
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	557 // incorrect.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	558 if ((age_t) (age_max - age_min) > 0x8000) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	559 age_dist = age_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	560 age_max = age_min;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	561 age_min = age_dist;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	562 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	563
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	564 // save maximum age found for the case of a bad block that is going to
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	565 // be reclaimed later on by blocks_reclaim()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	566 fs.age_max = age_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	567
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	568 tw(tr(TR_FUNC, TrFsck, "fs.format = 0x%04x\n", fs.format));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	569 tw(tr(TR_FUNC, TrFsck, "fs.inodes, newinodes = %d, %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	570 fs.inodes, fs.newinodes));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	571 ttw(ttr(TTrInit, "fs.inodes, newinodes = %d, %d" NL,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	572 fs.inodes, fs.newinodes));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	573 tw(tr(TR_FUNC, TrFsck, "age min, max = %d, %d\n", age_min, age_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	574
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	575 // If any blocks were in the EMPTY state, now is the time to bring them
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	576 // into the FREE state. Note that we must only do this after
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	577 // fs.age_max has been initialized.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	578 for (b = 0; b < dev.numblocks; b++) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	579 if (is_block(b, BF_IS_EMPTY)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	580 if ((bstat[b].used = block_used(b)) == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	581 block_preformat(b, 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	582 else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	583 block_free(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	584 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	585 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	586
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	587 if (fs.inodes >= 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	588 // The 'old' inode block is still valid thus we keep it.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	589 if (fs.newinodes >= 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	590 // The copying of inodes to the new block was not finished thus
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	591 // we free the block
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	592 block_free(fs.newinodes);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	593 inodes_set(fs.inodes);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	594 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	595 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	596 // Copying must have been finished
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	597 if (fs.newinodes >= 0 && b_inode_lost >= 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	598 // The inode reclaim did finish but currently there is no valid
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	599 // inode block thus the operation must be finished by committing
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	600 // the new block as the valid inode block.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	601 fs.inodes = b_inode_lost;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	602 block_commit();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	603
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	604 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	605 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	606 // No old or new Inode block!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	607 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_NOFORMAT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	608 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_NOFORMAT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	609 return EFFS_NOFORMAT;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	610 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	611 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	612
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	613 if ((fs.format >> 8) != (FFS_FORMAT_VERSION >> 8)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	614 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_BADFORMAT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	615 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_BADFORMAT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	616 return EFFS_BADFORMAT;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	617 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	618
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	619 // FIXME: Insert age sanity check; age distance must not be too big (> 2
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	620 // * FFS_AGE_DISTANCE)?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	621
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	622 tw(tr(TR_END, TrFsck, "} %d\n", b_to_clean));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	623 ttw(ttr(TTrInitLow, "} %d" NL, b_to_clean));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	624
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	625 return b_to_clean;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	626 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	627
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	628 // Set fs.inodes and fs.inodes_addr
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	629 void inodes_set(iref_t i)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	630 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	631 fs.inodes = i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	632 fs.inodes_addr = (struct inode_s *)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	633 (offset2addr(dev.binfo[fs.inodes].offset)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	634 + dev.atomsize - sizeof(struct inode_s));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	635 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	636
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	637
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	638 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	639 * inodes_fsck()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	640 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	641
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	642 // Now for each inode in the inodes block, update the bstat array
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	643 // information: free, used, objects. Also, locate the root inode. We could
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	644 // optimize this a little, because bstat[binodes].used gives an inidication
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	645 // of how many inodes are actually present in the system.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	646 iref_t inodes_fsck(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	647 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	648 iref_t i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	649 struct inode_s *ip;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	650 char *addr;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	651 bref_t block;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	652
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	653 ttw(str(TTrInitLow, "inodes_fsck {" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	654 tw(tr(TR_BEGIN, TrFsck, "inodes_fsck() {\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	655 tw(tr(TR_FUNC, TrFsck, "inodes in block %d:\n", fs.inodes));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	656
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	657 // the fields of the bstat entry for the inodes have the meaning:
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	658 // used = total number of used inodes (valid, erased, invalid)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	659 // lost = total number of lost inodes (erased, invalid)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	660 // objects = index of first free inode (used by inode_alloc())
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	661
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	662 fs.root = 0; // default to root inode not found
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	663 fs.ijournal = 0; // default to journal file inode not found
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	664 bstat[fs.inodes].objects = 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	665 bstat[fs.inodes].used = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	666 bstat[fs.inodes].lost = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	667 fs.sequence = 0; // just for debug (fun)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	668
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	669 // we must set some default value for this, so we set it to max possible!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	670 fs.inodes_max = dev.blocksize / sizeof(struct inode_s);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	671
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	672 ip = inode_addr(1);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	673 tw(tr(TR_FUNC, TrFsck, " i addr cld sib seq upd flag size name\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	674 for (i = 1; i < fs.inodes_max; i++, ip++)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	675 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	676 // just for debug (fun)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	677 if (ip->sequence > fs.sequence)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	678 fs.sequence = ip->sequence;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	679
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	680 // compute block index and total data space occupied
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	681 block = offset2block(location2offset(ip->location));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	682
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	683 // Only scan used inodes. blocks_fsck() accounted all used space as
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	684 // also being lost space, so now we subtract from the lost space,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	685 // the space used by valid objects
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	686 if (ip->location != FLASH_NULL32)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	687 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	688 bstat[fs.inodes].used++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	689
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	690 tw(tr(TR_FUNC, TrFsck, "%3d 0x%05X %3d %3d %4d %3d %s%s%s%s%s%s %6d %s\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	691 i,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	692 location2offset(ip->location),
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	693 ip->child, ip->sibling,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	694 ip->sequence, ip->updates,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	695 is_object(ip, OT_DIR) ? "d" : "",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	696 is_object(ip, OT_LINK) ? "l" : "",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	697 is_object(ip, OT_FILE) ? "f" : "",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	698 is_object(ip, OT_SEGMENT) ? "s" : "",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	699 is_object(ip, OT_ERASED) ? " " : "",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	700 IS_BIT_SET(ip->flags, OF_READONLY) && !is_object(ip, OT_ERASED) ?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	701 "r" : " ",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	702 ip->size,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	703 // Erased chunks do not have any name so we can not trace erased objects!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	704 (ip->size && !is_object(ip, OT_SEGMENT) && !is_object(ip, OT_ERASED) ?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	705 addr2name(offset2addr(location2offset(ip->location))) : "")
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	706 ));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	707
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	708 if (is_object_valid(ip)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	709 // This inode is valid, so we account the data space as used
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	710 // and the inode as used too.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	711 bstat[block].lost -= ip->size;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	712 bstat[block].objects++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	713 // test if this is the root inode. store index if it is.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	714 if (!is_object(ip, OT_SEGMENT)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	715 addr = addr2name(offset2addr(location2offset(ip->location)));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	716 if (*addr == '/')
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	717 fs.root = i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	718 else if (*addr == '.' &&
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	719 ffs_strcmp(addr, FFS_JOURNAL_NAME) == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	720 fs.ijournal = i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	721 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	722 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	723 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	724 else if (is_object(ip, OT_ERASED)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	725 // this inode's data is deleted, so we account the data
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	726 // space as used and lost and the inode as lost too.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	727 bstat[fs.inodes].lost++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	728 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	729 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	730 // This is an invalid object, so we account the data space
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	731 // as used and lost and the inode as lost too. NOTEME: error
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	732 // what should we do? Perhaps we should record semi-lost
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	733 // inodes? Can we safely account for it here if this is an
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	734 // object to be recovered because another inode.copied is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	735 // referring to this? Will used/lost etc. be updated
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	736 // correctly then?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	737 bstat[fs.inodes].lost++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	738 tw(tr(TR_NULL, TrFsck, "(invalid = %d)\n", ip->flags & OT_MASK));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	739 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	740 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	741 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	742 ttw(ttr(TTrInit, "fs.root=%d, journal=%d" NL, fs.root, fs.ijournal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	743 tw(tr(TR_END, TrFsck, "} used: %d, lost: %d, root: %d, journal: %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	744 bstat[fs.inodes].used, bstat[fs.inodes].lost, fs.root, fs.ijournal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	745
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	746 fs.sequence++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	747
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	748 tw(tr_bstat());
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	749
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	750 if (fs.root == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	751 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_NOFORMAT));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	752 return EFFS_NOFORMAT;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	753 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	754
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	755 ttw(str(TTrInitLow, "} 0" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	756
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	757 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	758 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	759
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	760
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	761 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	762 * Preformat and format
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	763 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	764
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	765 // Prepare all blocks for fs_format(). Because ffs_is_formattable() has
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	766 // already been called prior to this function, we know that no sector erase
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	767 // is in progress! The blocks are prepared by putting them into the 'Free'
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	768 // state.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	769 effs_t fs_preformat(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	770 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	771 bref_t b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	772
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	773 ttw(str(TTrFormat, "preformat {" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	774 tw(tr(TR_BEGIN, TrFormat, "fs_preformat() {\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	775
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	776 // Mark ffs as being non-formatted from now on.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	777 fs.root = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	778
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	779 // We must initialize bstat[fs.inodes].used and inodes_high, such that
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	780 // inodes_reclaim() isn't triggered in reclaim() on the following
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	781 // fs_format().
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	782 inodes_set(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	783 bstat[fs.inodes].used = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	784 bstat[fs.inodes].lost = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	785 bstat[fs.inodes].objects = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	786
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	787 // While format is in progress, we make FFS inaccessible to other
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	788 // functions...
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	789 fs.initerror = EFFS_NOFORMAT;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	790
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	791 if (dev.manufact == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	792 b = EFFS_NODEVICE;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	793 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	794 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	795 for (b = 0; b < dev.numblocks; b++) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	796 if (is_block(b, BF_IS_EMPTY)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	797 if ((bstat[b].used = block_used(b)) == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	798 block_preformat(b, 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	799 else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	800 block_free(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	801 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	802 else if (!is_block(b, BF_IS_FREE)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	803 block_free(b);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	804 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	805 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	806 b = EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	807 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	808
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	809 tw(tr(TR_END, TrFormat, "} %d\n", b));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	810 ttw(ttr(TTrFormat, "} %d" NL, b));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	811
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	812 return b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	813 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	814
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	815 // Preformat a single block thus taking it from the 'Empty' state into
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	816 // 'Free' state.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	817 void block_preformat(bref_t b, age_t age)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	818 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	819 int set_age_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	820 struct block_header_s *bhp =
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	821 (struct block_header_s *) offset2addr(dev.binfo[b].offset);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	822
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	823 tw(tr(TR_BEGIN, TrFormat, "fs_block_preformat(%d, %d)\n", b, age));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	824
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	825 if (age == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	826 age = fs.age_max;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	827 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	828 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	829 // We schedule an update of fs.age_max. Due to proper handling of
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	830 // age wrap-around, we can not actually set it now.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	831 set_age_max = (age == fs.age_max);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	832 age++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	833 if (age == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	834 age++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	835 if (set_age_max) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	836 fs.age_max = age;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	837 tw(tr(TR_FUNC, TrFormat, "new fs.age_max = %d\n", fs.age_max));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	838 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	839 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	840
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	841 ffsdrv.write_halfword(&bhp->age, age);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	842 ffsdrv.write_halfword(&bhp->version, FFS_FORMAT_VERSION);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	843 ffsdrv.write_halfword(&bhp->magic_low, BLOCK_MAGIC_LOW);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	844 ffsdrv.write_halfword(&bhp->magic_high, BLOCK_MAGIC_HIGH);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	845
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	846 bstat[b].flags = BF_IS_EMPTY;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	847 bstat[b].used = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	848 bstat[b].lost = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	849 bstat[b].objects = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	850
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	851 block_flags_write(b, BF_FREE);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	852
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	853 tw(tr(TR_END, TrFormat, ""));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	854 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	855
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	856 // After preformat() has erased two blocks, this function can be called to
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	857 // initialize ffs by writing fs data and metadata. Note that ffs_begin() is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	858 // not called before this function in ffs.c. Otherwise we would never
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	859 // enter this function because fs.root is zero. NOTEME: this is also a bug
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	860 // as this means we risk that this operation is started while an erase (or a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	861 // write) is in progress! How the flash device reacts to this is currently
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	862 // unknown.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	863 effs_t fs_format(const char *name)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	864 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	865 bref_t i, b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	866
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	867 ttw(str(TTrFormat, "format {" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	868 tw(tr(TR_BEGIN, TrFormat, "fs_format('%s') {\n", name));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	869
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	870 // Initialize file system parameters. It should be safe to change these
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	871 // now, as the format cannot fail at this point onwards.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	872 fs_params_init(name);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	873
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	874 // Make the first block be the inodes block
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	875 if ((fs.inodes = block_alloc(1, BF_COPYING)) < 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	876 return EFFS_AGAIN;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	877 block_flags_write(fs.inodes, BF_INODES);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	878 inodes_set(fs.inodes);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	879
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	880 // Make all block as data blocks except from the free_min and inode block
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	881 for (i = 0; i < dev.numblocks - fs.blocks_free_min - 1; i++)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	882 if ((b = block_alloc(0, BF_DATA)) < 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	883 return EFFS_AGAIN;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	884
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	885 // Restart object sequencing (debug feature only)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	886 fs.sequence = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	887
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	888 // Create root directory
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	889 journal_begin(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	890 if ((fs.root = object_create(name, 0, 0, 0)) < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	891 tw(tr(TR_END, TrFormat, "} %d\n", fs.root));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	892 return fs.root;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	893 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	894 journal_commit(OT_DIR);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	895
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	896 if ((fs.ijournal = journal_create(0)) < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	897 tw(tr(TR_END, TrFormat, "} %d\n", fs.ijournal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	898 return fs.ijournal;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	899 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	900
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	901 fs.initerror = ffs_initialize();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	902
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	903 ttw(ttr(TTrFormat, "} %d" NL, fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	904 tw(tr(TR_END, TrFormat, "} %d\n", fs.initerror));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	905
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	906 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	907 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	908
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	909 // Check if we are ready to preformat (flag = 0) or format (flag = 1)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	910 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	911 // For a format, we must first ensure no blocks are valid e.g. a preformat
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	912 // has already been run. Next, we must ensure we have preformatted all
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	913 // blocks e.g. all blocks are in the 'Free' state. This is actually the same
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	914 // thing but it sure helps the user because it yields a more precise error
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	915 // code when the format fails. In future we might be able to start a format
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	916 // when only two blocks have been preformatted, but this is harder because
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	917 // we have to make sure not to read from the physical sector that we are
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	918 // erasing, and this is exactly what ffs_ffs_initialize() currently does
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	919 // (when it is called at the end of format()).
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	920 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	921 // For a preformat, we must ensure an erase is not in progress (because we
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	922 // don't know how the device will react to a new erase when an erase is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	923 // currently suspended).
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	924 effs_t is_formattable(int8 flag)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	925 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	926 bref_t i, free, valid;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	927 effs_t error = EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	928
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	929 tw(tr(TR_FUNC, TrFormat, "is_formattable() "));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	930
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	931 // Count the number of valid and free blocks. These numbers will later
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	932 // be checked to see if we are really ready for a (pre)format(). Note
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	933 // that we only read block flags from the bstat[] array. We must not
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	934 // read directly from the flash sectors because an erase might be in
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	935 // progress!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	936 for (i = 0, free = 0, valid = 0; i < dev.numblocks; i++) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	937 if (is_block(i, BF_IS_DATA) \|\| is_block(i, BF_IS_INODES))
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	938 valid++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	939 if (is_block(i, BF_IS_FREE))
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	940 free++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	941 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	942 if (flag == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	943 // In the case of a preformat, ensure an erase is not in
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	944 // progress (because we don't know how the device will react to a new
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	945 // erase when an erase is currently suspended).
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	946 if (dev.state == DEV_ERASE \|\| dev.state == DEV_ERASE_SUSPEND) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	947 tw(tr(TR_NULL, TrFormat, "(%d)\n", EFFS_AGAIN));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	948 return EFFS_AGAIN;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	949 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	950 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	951 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	952 if (valid > 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	953 // Ensure we have preformatted prior to a format.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	954 error = EFFS_NOPREFORMAT;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	955 else if (free < dev.numblocks)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	956 // Ensure all blocks are free before a format(). If not, a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	957 // preformat() is currently in progress.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	958 error = EFFS_AGAIN;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	959 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	960
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	961 tw(tr(TR_NULL, TrFormat, "(%d)\n", error));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	962 return error;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	963 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	964
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	965
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	966 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	967 * Journalling
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	968 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	969
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	970 // The following matrix illustrates how the members of an inode change for
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	971 // the various (journalled) operations:
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	972 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	973 // \| flags \| size \| loc \| child \| siblg \| dir \| oldi \| updates
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	974 // ---------+-------+------+-----+-------+-------+-----+------+--------
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	975 // create \| new \| new \| new \| - \| - \| ins \| n/a \| 0
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	976 // fupdate \| o \| new \| new \| o \| - \| ins \| del \| old+1
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	977 // relocate \| o \| o \| new \| o \| - \| ins \| del \| old+1
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	978 // fctrl \| new \| o \| o \| o \| - \| ins \| del \| old+1
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	979 // remove \| n/a \| n/a \| n/a \| n/a \| n/a \| n/a \| del \| n/a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	980 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	981 // - = leave empty (0xFFFF)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	982 // ins = insert/append into directory
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	983 // o = old value
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	984 //
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	985 // We don't have to store child member in the journal entry because either
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	986 // it is EMPTY (fs.journal.oldi = 0) or it is retrieved from oldip->child.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	987
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	988 // NOTEME: With journalling implemented, object_relocate might be able just
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	989 // to make a simple data copy!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	990
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	991 // block_clean() is safe (without journalling), now that only ip->size is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	992 // set to zero.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	993
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	994 // Begin a new journal. Either a fresh object create (oldi == 0) or an
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	995 // update of an existing object (oldi == iref of old object)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	996 void journal_begin(iref_t oldi)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	997 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	998 tw(tr(TR_FUNC, TrJournal, "journal_begin(%d)\n", oldi));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	999
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1000 fs.journal.i = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1001 fs.journal.state = JOURNAL_IS_EMPTY;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1002 fs.journal.repli = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1003 fs.link_child = 1; //Default link child in journal_commit()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1004
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1005 if (oldi == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1006 fs.journal.flags = 0xFF;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1007 fs.journal.diri = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1008 fs.journal.oldi = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1009 fs.journal.location = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1010 fs.journal.size = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1011 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1012 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1013 struct inode_s *oldip = inode_addr(oldi);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1014 fs.journal.flags = oldip->flags;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1015 fs.journal.diri = oldi;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1016 fs.journal.oldi = oldi;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1017 fs.journal.location = oldip->location;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1018 fs.journal.size = oldip->size;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1019 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1020 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1021
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1022 // NOTEME: We have compressed the macro code because it will NOT compile on
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1023 // Unix otherwise. So until we find out why, we use this as a work-around.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1024 #if (FFS_TEST == 1)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1025 #define JOURNAL_TEST(testcase, text) if (fs.testflags == testcase) { tw(tr(TR_END, TrJournal, "} (" text ")\n")); return; }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1026 #else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1027 #define JOURNAL_TEST(testcase, text)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1028 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1029
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1030 // NOTEME: Should we empty journal file when we are anyway relocating it in
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1031 // data_reclaim()?
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1032 void journal_end(uint8 type)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1033 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1034 struct inode_s *ip = inode_addr(fs.ijournal);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1035 struct journal_s addr = (struct journal_s )
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1036 offset2addr(location2offset(ip->location) + fs.journal_pos);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1037
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1038 tw(tr(TR_BEGIN, TrJournal, "journal_end(0x%x) {\n", type));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1039 tw(tr(TR_FUNC, TrJournal, "journal_pos = 0x%04x (%d)\n", fs.journal_pos,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1040 (fs.journal_pos - JOURNAL_POS_INITIAL) / sizeof(struct journal_s)));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1041
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1042 // If this is a create, set the object type
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1043 if (type != 0 && fs.journal.oldi == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1044 fs.journal.flags = (fs.journal.flags & OF_MASK) \| type;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1045
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1046 // If there is no journal file, we can do without it, although we
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1047 // certainly don't like it!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1048 if (fs.ijournal == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1049 journal_commit(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1050 tw(tr(TR_END, TrJournal, "} No jounal file\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1051 return;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1052 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1053
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1054 JOURNAL_TEST(JOURNAL_TEST_EMPTY, "Oops in JOURNAL_IS_EMPTY");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1055
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1056 // Write RAM journal to journal file.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1057 if (fs.journal.state == (uint8) JOURNAL_IS_EMPTY) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1058 fs.journal.state = JOURNAL_IS_WRITING;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1059 ffsdrv.write(addr, &fs.journal, sizeof(fs.journal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1060 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1061
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1062 JOURNAL_TEST(JOURNAL_TEST_WRITING, "Oops in JOURNAL_IS_WRITING");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1063
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1064 // Advance journal file's state
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1065 if (fs.journal.state == (uint8) JOURNAL_IS_WRITING) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1066 fs.journal.state = JOURNAL_IS_READY;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1067 ffsdrv_write_byte(&addr->state, fs.journal.state);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1068 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1069
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1070 JOURNAL_TEST(JOURNAL_TEST_READY, "Oops in JOURNAL_IS_READY");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1071
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1072 journal_commit(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1073
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1074 JOURNAL_TEST(JOURNAL_TEST_COMMITTING, "Oops in JOURNAL_TEST_COMMITTING");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1075 JOURNAL_TEST(JOURNAL_TEST_COMMITTED, "Oops in JOURNAL_COMMITTED");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1076
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1077 // Advance journal file's state
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1078 ffsdrv_write_byte(&addr->state, JOURNAL_IS_DONE);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1079
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1080 JOURNAL_TEST(JOURNAL_TEST_DONE, "Oops in JOURNAL_IS_DONE");
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1081
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1082 // Advance journal
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1083 fs.journal_pos += sizeof(struct journal_s);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1084
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1085 // Unless we are currently relocating the journal file itself, check if
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1086 // journal file is near full and relocate it if it is.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1087 if (fs.journal_pos >= fs.journal_size - FFS_JOURNAL_MARGIN *
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1088 sizeof(struct journal_s) && fs.journal.oldi != fs.ijournal) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1089 tw(tr(TR_FUNC, TrJournal, "Journal file (near) full!\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1090 journal_create(fs.ijournal);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1091 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1092
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1093 // Check if we have just committed the journal file itself
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1094 if (fs.journal.oldi == fs.ijournal) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1095 fs.journal_pos = JOURNAL_POS_INITIAL;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1096 fs.ijournal = fs.journal.i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1097 tw(tr(TR_FUNC, TrJournal, "Journal file re-created, fs.ijournal = %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1098 fs.ijournal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1099 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1100 tw(tr(TR_END, TrJournal, "}\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1101 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1102
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1103 // Write contents of fs.journal to FFS meta data (inodes). Note that we do
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1104 // NOT traverse ip->copied as we used to do in the old
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1105 // object_update_commit(). Also, we do not check if object has been
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1106 // erased after traversing ip->copied. All this code has been removed
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1107 // because we will very soon have full callback functionality and thus the
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1108 // code is redundant.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1109 void journal_commit(uint8 type)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1110 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1111 struct inode_s *ip = inode_addr(fs.journal.i);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1112 struct inode_s *oldip = inode_addr(fs.journal.oldi);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1113 struct inode_s *dp;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1114 bref_t b;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1115
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1116 tw(tr(TR_BEGIN, TrJournal, "journal_commit(%d) {\n", type));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1117 tw(tr(TR_FUNC, TrJournal, "i = %d\n", fs.journal.i));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1118 ttw(ttr(TTrObj, "jc(){" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1119
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1120 if (fs.journal.i)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1121 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1122 // If this is a create, set the object type
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1123 if (type != 0 && fs.journal.oldi == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1124 fs.journal.flags = (fs.journal.flags & OF_MASK) \| type;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1125
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1126 tw(tr(TR_FUNC, TrJournal, "loc = 0x%04x, size = %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1127 fs.journal.location, fs.journal.size));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1128 ffsdrv.write((uint32 ) &ip->location, (uint32 ) &fs.journal.location, sizeof(location_t));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1129 ffsdrv.write_halfword((uint16 *) &ip->size, fs.journal.size);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1130
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1131 if (fs.journal.oldi != 0 && fs.link_child != 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1132 // If this is an update, we copy the child member from old
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1133 // inode. We must do this before we validate the new object,
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1134 // otherwise an intermediate readdir() will detect an empty
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1135 // directory!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1136 ffsdrv.write_halfword((uint16*) &ip->child, oldip->child);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1137
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1138 tw(tr(TR_FUNC, TrJournal, "seq = %d\n", fs.sequence));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1139 // We must check if sequence is already written because if this
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1140 // commit was inititiated by journal_init(), we don't know exactly
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1141 // what was written
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1142 if (ip->sequence == FLASH_NULL16)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1143 ffsdrv.write_halfword(&ip->sequence, fs.sequence++);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1144 if (fs.journal.oldi == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1145 ffsdrv.write_halfword(&ip->updates, 0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1146 else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1147 ffsdrv.write_halfword(&ip->updates, oldip->updates + 1);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1148
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1149 JOURNAL_TEST(JOURNAL_TEST_COMMITTING, "Oops in JOURNAL_TEST_COMMITTING")
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1150
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1151 // Insert object into directory structure. We must do this before
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1152 // deleting old object, otherwise an intermediate readdir() will
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1153 // fail with EFFS_NOTFOUND. Note that when the root directory is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1154 // created, fs.journal.diri is zero --- thus the test!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1155 if (fs.journal.diri != 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1156 tw(tr(TR_FUNC, TrJournal, "diri = %d ", fs.journal.diri));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1157 if (fs.journal.diri < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1158 tw(tr(TR_NULL, TrJournal, "child\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1159 dp = inode_addr(-fs.journal.diri);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1160 ffsdrv.write_halfword((uint16 *) &dp->child, fs.journal.i);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1161 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1162 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1163 tw(tr(TR_NULL, TrJournal, "sibling\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1164 dp = inode_addr(fs.journal.diri);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1165 ffsdrv.write_halfword((uint16 *) &dp->sibling, fs.journal.i);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1166 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1167 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1168
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1169 // The new object is validated before the old object is deleted.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1170 // This is in order to avoid an interrupting stat or read operation
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1171 // to fail with EFFS_NOTFOUND
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1172 tw(tr(TR_FUNC, TrJournal, "flags = 0x%02x\n", fs.journal.flags));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1173 ffsdrv_write_byte(&ip->flags, fs.journal.flags);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1174
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1175 // Update bstat[] appropriately
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1176 b = offset2block(location2offset(ip->location));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1177 bstat[b].objects++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1178 tw(tr(TR_FUNC, TrJournal, "bstat[%d].objects = %d\n", b, bstat[b].objects));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1179 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1180
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1181 tw(tr(TR_FUNC, TrJournal, "oldi = %d\n", fs.journal.oldi));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1182 if (fs.journal.oldi != 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1183 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1184 // If this is an update or an erase, we erase the old object
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1185 ffsdrv_write_byte(&oldip->flags, OT_ERASED);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1186
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1187 // Update bstat according to deletion of the old object.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1188 b = offset2block(location2offset(oldip->location));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1189 bstat[b].objects--;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1190 tw(tr(TR_FUNC, TrJournal, "bstat[%d].objects = %d\n", b, bstat[b].objects));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1191
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1192 // If we moved the data (all cases, except fcontrol), update lost
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1193 if (fs.journal.location != oldip->location)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1194 bstat[b].lost += oldip->size;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1195
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1196 bstat[fs.inodes].lost++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1197
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1198 // If we renamed a file to an existing filename, remove the replaced file.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1199 if (fs.journal.repli > 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1200 object_remove(fs.journal.repli); // Ignore error!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1201 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1202
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1203 tw(tr(TR_END, TrJournal, "}\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1204 ttw(ttr(TTrObj, "}" NL));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1205 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1206
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1207 // Save the current journal into "old" journal. We need this because an
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1208 // object_create() can call data_reclaim() which can call object_relocate()
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1209 // which uses the journal system.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1210 int journal_push(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1211 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1212 memcpy(&fs.ojournal, &fs.journal, sizeof(struct journal_s));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1213 fs.journal_depth++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1214 if (fs.journal_depth > 1) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1215 tw(tr(TR_FUNC, TrAll, "FATAL: journal_push() to depth %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1216 fs.journal_depth));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1217 return -1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1218 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1219
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1220 tw(tr(TR_FUNC, TrJournal, "journal_push() to depth %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1221 fs.journal_depth));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1222
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1223 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1224 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1225
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1226 // Recall "old" journal into current journal
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1227 int journal_pop(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1228 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1229 tw(tr(TR_FUNC, TrJournal, "journal_pop() from depth %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1230 fs.journal_depth));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1231
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1232 fs.journal_depth--;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1233 if (fs.journal_depth < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1234 tw(tr(TR_FUNC, TrAll, "FATAL: journal_pop() to depth %d\n",
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1235 fs.journal_depth));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1236 return -1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1237 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1238 memcpy(&fs.journal, &fs.ojournal, sizeof(struct journal_s));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1239
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1240 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1241 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1242
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1243 // Initialize the journalling system. Create journal file if it not already
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1244 // exist. Commit/write pending journal if such exists --- return 1 in that
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1245 // case. Otherwise, if journal file is clean (no journals pending) and all
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1246 // is fine, return EFFS_OK.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1247 effs_t journal_init(iref_t i)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1248 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1249 int j;
191 4725fe5932c4 FFS journal_init() bugfix from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: 0 diff changeset	1250 struct inode_s *ip;
0 b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1251 struct journal_s *addr;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1252
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1253 if (i == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1254 // Journal file does not exist, so create it
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1255 if ((i = journal_create(0)) <= 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1256 fs.ijournal = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1257 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1258 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1259 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1260
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1261 fs.journal_depth = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1262 fs.journal_pos = JOURNAL_POS_INITIAL;
191 4725fe5932c4 FFS journal_init() bugfix from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: 0 diff changeset	1263 ip = inode_addr(i);
0 b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1264
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1265 addr = (struct journal_s *)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1266 offset2addr(location2offset(ip->location) + fs.journal_pos);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1267
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1268 tw(tr(TR_BEGIN, TrJournal, "journal_init(%d) {\n", i));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1269
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1270 fs.ijournal = i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1271
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1272 // Search for first non-completed journal entry.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1273 for (j = 0; /* FIXME: limit to end of journal */; j++, addr++) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1274 if (addr->state != (uint8) JOURNAL_IS_DONE)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1275 break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1276 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1277 tw(tr(TR_FUNC, TrJournal, "entry %d is in state 0x%x\n", j, addr->state));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1278
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1279 fs.journal_pos += j * sizeof(fs.journal);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1280 i = EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1281
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1282 if (addr->state == (uint8) JOURNAL_IS_EMPTY) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1283 tw(tr(TR_FUNC, TrJournal, "Last journal is in EMPTY state\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1284 // Journal file is proper, so just record position
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1285 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1286 else if (addr->state == (uint8) JOURNAL_IS_READY) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1287 // Copy the entry into fs.journal.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1288 tw(tr(TR_FUNC, TrJournal, "Last journal is in READY state\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1289 memcpy(&fs.journal, addr, sizeof(fs.journal));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1290 journal_end(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1291 i = 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1292 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1293 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1294 // Journal entry wasn't finished, so just ignore it after updating
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1295 // its state to JOURNAL_IS_DONE.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1296 tw(tr(TR_FUNC, TrJournal, "Last journal is between EMPTY and READY\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1297 ffsdrv_write_byte(&addr->state, JOURNAL_IS_DONE);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1298 fs.journal_pos += sizeof(fs.journal);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1299 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1300
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1301 if (ip->size != fs.journal_size + atomalign(sizeof(FFS_JOURNAL_NAME) + 1)) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1302 tw(tr(TR_FUNC, TrJournal, "Wrong journal size, create new\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1303 // Journal size do not match default size, so create new. This
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1304 // should only happen if we use an old FFS image with a newer FFS
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1305 // version.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1306 if ((i = journal_create(fs.ijournal)) <= 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1307 fs.ijournal = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1308 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1309 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1310 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1311
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1312 tw(tr(TR_FUNC, TrJournal, "journal_pos = 0x%04x\n", fs.journal_pos));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1313 tw(tr(TR_END, TrJournal, "} %d\n", i));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1314
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1315 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1316 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1317
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1318 // Create the journal file from scratch or relocate an existing one. It is
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1319 // marked read-only just for clarity --- it cannot be deleted anyway!
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1320 // fs_format() calls this function. Note that no data are written in
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1321 // object_create() because the journal file is handled specially in that
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1322 // function.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1323 iref_t journal_create(iref_t oldi)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1324 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1325 iref_t i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1326
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1327 tw(tr(TR_BEGIN, TrJournal, "journal_create(%d) {\n", oldi));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1328 tw(tr(TR_FUNC, TrJournal, "journal file size = %d\n", fs.journal_size));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1329
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1330 if (fs.journal_size == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1331 tw(tr(TR_FUNC, TrJournal, "Journal file creation aborted because fs.journal_size = 0 (No journal file wanted)\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1332 tw(tr(TR_END, TrJournal, "} %d\n", 0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1333 return 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1334 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1335
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1336 // If we are working on a write-once file system, we do not need a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1337 // journal.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1338 if (fs.blocks_free_min == 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1339 tw(tr(TR_FUNC, TrJournal, "Journal file creation aborted because fs.blocks_free_min = 0 (write-once system)\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1340 tw(tr(TR_END, TrJournal, "} %d\n", 0));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1341 return 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1342 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1343
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1344 journal_begin(oldi);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1345
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1346 i = object_create(FFS_JOURNAL_NAME, 0, fs.journal_size, -fs.root);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1347 if (i < 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1348 tw(tr(TR_END, TrJournal, "} %d\n", i));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1349 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1350 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1351 fs.journal.flags = BIT_SET(fs.journal.flags, OF_READONLY);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1352
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1353 // commit the creation or relocation
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1354 if (oldi != 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1355 journal_end(0);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1356 else {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1357 journal_commit(OT_FILE);
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1358 fs.journal_pos = JOURNAL_POS_INITIAL;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1359 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1360
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1361 tw(tr(TR_END, TrJournal, "} %d\n", i));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1362
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1363 return i;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1364 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1365
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1366 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1367 * FFS Begin and End
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1368 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1369
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1370 // The following two functions should surround the code of every API
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1371 // function in ffs.c (except preformat and format). The functions
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1372 // ensures that the operation about to be executed can be made without
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1373 // race-conditions or other problems.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1374 #if (TARGET == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1375 int debug_suspend = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1376 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1377
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1378
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1379 // Check if ffs has been initialized. Suspend an erase operation.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1380 effs_t ffs_begin(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1381 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1382 #if (TARGET == 0)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1383 if (debug_suspend > 0) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1384 tw(tr(TR_FUNC, TrAll, "FATAL: Previous erase_suspend was not resumed\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1385 return EFFS_CORRUPTED;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1386 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1387 // tw(tr(TR_FUNC, TrHelper, "Set debug_suspend\n"));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1388 debug_suspend = 1;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1389 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1390
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1391 if (fs.initerror != EFFS_OK)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1392 return fs.initerror;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1393
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1394 // Suspend an erase in progress (only applicable if we are using a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1395 // multi-bank device driver)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1396 if (dev.state == DEV_ERASE) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1397 ffsdrv.erase_suspend();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1398 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1399 else if (dev.state == DEV_WRITE) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1400 ffsdrv.write_end();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1401 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1402
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1403 return EFFS_OK;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1404 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1405
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1406 // Resume an erase operation that was in progress.
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1407 int ffs_end(int error)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1408 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1409 #if (TARGET == 1)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1410 // Resume an erase in progress (only applicable if we are using a
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1411 // multi-bank device driver)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1412 if (dev.state == DEV_ERASE_SUSPEND) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1413 ffsdrv.erase_resume();
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1414 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1415 #else
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1416 debug_suspend = 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1417 #endif
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1418
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1419 return error;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1420 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1421
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1422 /******************************************************************************
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1423 * FFS Statistics functions
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1424 ******************************************************************************/
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1425
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1426 // Not implemented:
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1427 int statistics_file_create(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1428 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1429 return 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1430 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1431
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1432 // Not implemented:
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1433 // Rewrite the statistics file if it exists. Otherwise return error
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1434 // code. The function is called after each data and inodes reclaim (after
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1435 // writing the file that provoked the reclaim).
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1436 int statistics_write(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1437 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1438 return 0;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1439 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1440
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1441 // Read the statistics file if it exists. Otherwise reset all statistics to
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1442 // zero and set the magic. This function is called from ffs_init().
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1443 void statistics_init(void)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1444 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1445 memset(&stats, 0, sizeof(struct ffs_stats_s));
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1446 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1447
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1448 void statistics_update_drec(int valid, int lost, int candidate)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1449 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1450 unsigned int old;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1451
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1452 switch (candidate) {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1453 case MOST_LOST: stats.drec.most_lost++; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1454 case MOST_UNUSED: stats.drec.most_unused++; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1455 case YOUNGEST: stats.drec.youngest++; break;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1456 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1457
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1458 // Increment Most Significant Word if overflow is detected
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1459 old = stats.drec.valid[0];
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1460 stats.drec.valid[0] += valid;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1461 if (old > stats.drec.valid[0])
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1462 stats.drec.valid[1]++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1463
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1464 old = stats.drec.lost[0];
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1465 stats.drec.lost[0] += lost;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1466 if (old > stats.drec.lost[0])
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1467 stats.drec.lost[1]++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1468 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1469
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1470 void statistics_update_irec(int valid, int lost)
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1471 {
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1472 stats.irec.num++;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1473 stats.irec.valid += valid;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1474 stats.irec.lost += lost;
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1475 }
b6a5e36de839 src/cs: initial import from Magnetite Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1476

FreeCalypso > hg > fc-selenite

annotate src/cs/drivers/drv_app/ffs/board/fsck.c @ 191:4725fe5932c4