2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which inodes are casefolded. (inode_casefold_map)
27 * - A bitmap of which blocks are in use. (block_found_map)
28 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
29 * - The data blocks of the directory inodes. (dir_map)
30 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * - The encryption policy ID of each encrypted inode. (encrypted_files)
33 * Pass 1 is designed to stash away enough information so that the
34 * other passes should not need to read in the inode information
35 * during the normal course of a filesystem check. (Although if an
36 * inconsistency is detected, other passes may need to read in an
39 * Note that pass 1B will be invoked if there are any duplicate blocks
43 #define _GNU_SOURCE 1 /* get strnlen() */
56 #include <ext2fs/ext2_ext_attr.h>
57 /* todo remove this finally */
58 #include <ext2fs/ext2fsP.h>
63 #ifdef NO_INLINE_FUNCS
66 #define _INLINE_ inline
76 static int process_block(ext2_filsys fs, blk64_t *blocknr,
77 e2_blkcnt_t blockcnt, blk64_t ref_blk,
78 int ref_offset, void *priv_data);
79 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
80 e2_blkcnt_t blockcnt, blk64_t ref_blk,
81 int ref_offset, void *priv_data);
82 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
84 const struct ea_quota *ea_ibody_quota);
85 static void mark_table_blocks(e2fsck_t ctx);
86 static void alloc_bb_map(e2fsck_t ctx);
87 static void alloc_imagic_map(e2fsck_t ctx);
88 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
89 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino);
90 static void handle_fs_bad_blocks(e2fsck_t ctx);
91 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
92 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
93 dgrp_t group, void * priv_data);
94 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
95 char *block_buf, int adjust_sign);
96 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
98 struct process_block_struct {
100 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
101 fragmented:1, compressed:1, bbcheck:1,
106 e2_blkcnt_t last_init_lblock;
107 e2_blkcnt_t last_db_block;
108 int num_illegal_blocks;
109 blk64_t previous_block;
110 struct ext2_inode *inode;
111 struct problem_context *pctx;
112 ext2fs_block_bitmap fs_meta_blocks;
115 struct extent_tree_info eti;
118 struct process_inode_block {
120 struct ea_quota ea_ibody_quota;
121 struct ext2_inode_large inode;
124 struct scan_callback_struct {
127 struct process_inode_block *inodes_to_process;
128 int *process_inode_count;
131 static void process_inodes(e2fsck_t ctx, char *block_buf,
132 struct process_inode_block *inodes_to_process,
133 int *process_inode_count);
135 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
136 EXT2_MIN_BLOCK_LOG_SIZE + 1];
139 * Check to make sure a device inode is real. Returns 1 if the device
140 * checks out, 0 if not.
142 * Note: this routine is now also used to check FIFO's and Sockets,
143 * since they have the same requirement; the i_block fields should be
146 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
147 struct ext2_inode *inode)
152 * If the index or extents flag is set, then this is a bogus
155 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
159 * We should be able to do the test below all the time, but
160 * because the kernel doesn't forcibly clear the device
161 * inode's additional i_block fields, there are some rare
162 * occasions when a legitimate device inode will have non-zero
163 * additional i_block fields. So for now, we only complain
164 * when the immutable flag is set, which should never happen
165 * for devices. (And that's when the problem is caused, since
166 * you can't set or clear immutable flags for devices.) Once
167 * the kernel has been fixed we can change this...
169 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
170 for (i=4; i < EXT2_N_BLOCKS; i++)
171 if (inode->i_block[i])
178 * Check to make sure a symlink inode is real. Returns 1 if the symlink
179 * checks out, 0 if not.
181 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
182 struct ext2_inode *inode, char *buf)
187 if ((inode->i_size_high || inode->i_size == 0) ||
188 (inode->i_flags & EXT2_INDEX_FL))
191 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
194 if (inode->i_flags & EXT4_EXTENTS_FL)
196 if (ext2fs_inline_data_size(fs, ino, &inline_size))
198 if (inode->i_size != inline_size)
204 if (ext2fs_is_fast_symlink(inode)) {
205 if (inode->i_flags & EXT4_EXTENTS_FL)
207 buf = (char *)inode->i_block;
208 buflen = sizeof(inode->i_block);
210 ext2_extent_handle_t handle;
211 struct ext2_extent_info info;
212 struct ext2fs_extent extent;
216 if (inode->i_flags & EXT4_EXTENTS_FL) {
217 if (ext2fs_extent_open2(fs, ino, inode, &handle))
219 if (ext2fs_extent_get_info(handle, &info) ||
220 (info.num_entries != 1) ||
221 (info.max_depth != 0)) {
222 ext2fs_extent_free(handle);
225 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
227 (extent.e_lblk != 0) ||
228 (extent.e_len != 1)) {
229 ext2fs_extent_free(handle);
233 ext2fs_extent_free(handle);
235 blk = inode->i_block[0];
237 for (i = 1; i < EXT2_N_BLOCKS; i++)
238 if (inode->i_block[i])
242 if (blk < fs->super->s_first_data_block ||
243 blk >= ext2fs_blocks_count(fs->super))
246 if (io_channel_read_blk64(fs->io, blk, 1, buf))
249 buflen = fs->blocksize;
252 if (inode->i_flags & EXT4_ENCRYPT_FL)
253 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
255 len = strnlen(buf, buflen);
260 if (len != inode->i_size)
266 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
268 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
269 static void check_extents_inlinedata(e2fsck_t ctx,
270 struct problem_context *pctx)
272 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
275 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
278 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
279 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
281 #undef BAD_SPECIAL_FLAGS
284 * If the immutable (or append-only) flag is set on the inode, offer
287 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
288 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
301 * If device, fifo or socket, check size is zero -- if not offer to
304 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
306 struct ext2_inode *inode = pctx->inode;
308 if (EXT2_I_SIZE(inode) == 0)
311 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
314 ext2fs_inode_size_set(ctx->fs, inode, 0);
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * For a given size, calculate how many blocks would be charged towards quota.
321 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
325 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
326 return EXT2FS_C2B(fs, clusters);
330 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
333 static problem_t check_large_ea_inode(e2fsck_t ctx,
334 struct ext2_ext_attr_entry *entry,
335 struct problem_context *pctx,
336 blk64_t *quota_blocks)
338 struct ext2_inode inode;
342 /* Check if inode is within valid range */
343 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
344 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
345 pctx->num = entry->e_value_inum;
346 return PR_1_ATTR_VALUE_EA_INODE;
349 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
351 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
353 com_err("check_large_ea_inode", retval,
354 _("while hashing entry with e_value_inum = %u"),
355 entry->e_value_inum);
359 if (hash == entry->e_hash) {
360 *quota_blocks = size_to_quota_blocks(ctx->fs,
361 entry->e_value_size);
363 /* This might be an old Lustre-style ea_inode reference. */
364 if (inode.i_mtime == pctx->ino &&
365 inode.i_generation == pctx->inode->i_generation) {
368 /* If target inode is also missing EA_INODE flag,
369 * this is likely to be a bad reference.
371 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
372 pctx->num = entry->e_value_inum;
373 return PR_1_ATTR_VALUE_EA_INODE;
375 pctx->num = entry->e_hash;
376 return PR_1_ATTR_HASH;
381 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
382 pctx->num = entry->e_value_inum;
383 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
384 inode.i_flags |= EXT4_EA_INODE_FL;
385 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
388 return PR_1_ATTR_NO_EA_INODE_FL;
394 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
395 struct ext2_ext_attr_entry *first, void *end)
397 struct ext2_ext_attr_entry *entry = first;
398 struct ext2_ext_attr_entry *np = EXT2_EXT_ATTR_NEXT(entry);
400 while ((void *) entry < end && (void *) np < end &&
401 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
402 if (!entry->e_value_inum)
404 if (!ctx->ea_inode_refs) {
405 pctx->errcode = ea_refcount_create(0,
406 &ctx->ea_inode_refs);
409 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
410 ctx->flags |= E2F_FLAG_ABORT;
414 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
418 np = EXT2_EXT_ATTR_NEXT(entry);
422 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
423 struct ea_quota *ea_ibody_quota)
425 struct ext2_super_block *sb = ctx->fs->super;
426 struct ext2_inode_large *inode;
427 struct ext2_ext_attr_entry *entry;
428 char *start, *header, *end;
429 unsigned int storage_size, remain;
430 problem_t problem = 0;
433 ea_ibody_quota->blocks = 0;
434 ea_ibody_quota->inodes = 0;
436 inode = (struct ext2_inode_large *) pctx->inode;
437 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
438 inode->i_extra_isize;
439 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
440 inode->i_extra_isize;
441 end = header + storage_size;
442 start = header + sizeof(__u32);
443 entry = (struct ext2_ext_attr_entry *) start;
445 /* scan all entry's headers first */
447 /* take finish entry 0UL into account */
448 remain = storage_size - sizeof(__u32);
450 region = region_create(0, storage_size);
452 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
454 ctx->flags |= E2F_FLAG_ABORT;
457 if (region_allocate(region, 0, sizeof(__u32))) {
458 problem = PR_1_INODE_EA_ALLOC_COLLISION;
462 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
463 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
466 if (region_allocate(region, (char *)entry - (char *)header,
467 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
468 problem = PR_1_INODE_EA_ALLOC_COLLISION;
472 /* header eats this space */
473 remain -= sizeof(struct ext2_ext_attr_entry);
475 /* is attribute name valid? */
476 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
477 pctx->num = entry->e_name_len;
478 problem = PR_1_ATTR_NAME_LEN;
482 /* attribute len eats this space */
483 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
485 if (entry->e_value_inum == 0) {
486 /* check value size */
487 if (entry->e_value_size > remain) {
488 pctx->num = entry->e_value_size;
489 problem = PR_1_ATTR_VALUE_SIZE;
493 if (entry->e_value_size &&
494 region_allocate(region,
495 sizeof(__u32) + entry->e_value_offs,
497 entry->e_value_size))) {
498 problem = PR_1_INODE_EA_ALLOC_COLLISION;
502 hash = ext2fs_ext_attr_hash_entry(entry,
503 start + entry->e_value_offs);
505 /* e_hash may be 0 in older inode's ea */
506 if (entry->e_hash != 0 && entry->e_hash != hash) {
507 pctx->num = entry->e_hash;
508 problem = PR_1_ATTR_HASH;
512 blk64_t quota_blocks;
514 problem = check_large_ea_inode(ctx, entry, pctx,
519 ea_ibody_quota->blocks += quota_blocks;
520 ea_ibody_quota->inodes++;
523 /* If EA value is stored in external inode then it does not
524 * consume space here */
525 if (entry->e_value_inum == 0)
526 remain -= entry->e_value_size;
528 entry = EXT2_EXT_ATTR_NEXT(entry);
531 if (region_allocate(region, (char *)entry - (char *)header,
533 problem = PR_1_INODE_EA_ALLOC_COLLISION;
540 * it seems like a corruption. it's very unlikely we could repair
541 * EA(s) in automatic fashion -bzzz
543 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
544 inc_ea_inode_refs(ctx, pctx,
545 (struct ext2_ext_attr_entry *)start, end);
549 /* simply remove all possible EA(s) */
550 *((__u32 *)header) = 0UL;
551 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
552 EXT2_INODE_SIZE(sb), "pass1");
553 ea_ibody_quota->blocks = 0;
554 ea_ibody_quota->inodes = 0;
557 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
558 return (xtime & (1U << 31)) != 0 &&
559 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
562 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
563 check_inode_extra_negative_epoch(inode->i_##xtime, \
564 inode->i_##xtime##_extra)
566 /* When today's date is earlier than 2242, we assume that atimes,
567 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
568 * actually pre-1970 dates mis-encoded.
570 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
572 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
573 struct ea_quota *ea_ibody_quota)
575 struct ext2_super_block *sb = ctx->fs->super;
576 struct ext2_inode_large *inode;
580 ea_ibody_quota->blocks = 0;
581 ea_ibody_quota->inodes = 0;
583 inode = (struct ext2_inode_large *) pctx->inode;
584 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
585 /* this isn't large inode. so, nothing to check */
590 printf("inode #%u, i_extra_size %d\n", pctx->ino,
591 inode->i_extra_isize);
593 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
594 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
595 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
597 * For now we will allow i_extra_isize to be 0, but really
598 * implementations should never allow i_extra_isize to be 0
600 if (inode->i_extra_isize &&
601 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
602 inode->i_extra_isize & 3)) {
603 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
605 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
606 inode->i_extra_isize = sb->s_want_extra_isize;
608 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
609 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
610 EXT2_INODE_SIZE(sb), "pass1");
613 /* check if there is no place for an EA header */
614 if (inode->i_extra_isize >= max - sizeof(__u32))
617 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
618 inode->i_extra_isize);
619 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
620 /* it seems inode has an extended attribute(s) in body */
621 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
625 * If the inode's extended atime (ctime, crtime, mtime) is stored in
626 * the old, invalid format, repair it.
628 if (((sizeof(time_t) <= 4) ||
629 (((sizeof(time_t) > 4) &&
630 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
631 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
632 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
633 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
634 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
636 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
639 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
640 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
641 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
642 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
643 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
644 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
645 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
646 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
647 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
648 EXT2_INODE_SIZE(sb), "pass1");
654 * Check to see if the inode might really be a directory, despite i_mode
656 * This is a lot of complexity for something for which I'm not really
657 * convinced happens frequently in the wild. If for any reason this
658 * causes any problems, take this code out.
659 * [tytso:20070331.0827EDT]
661 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
664 struct ext2_inode *inode = pctx->inode;
665 struct ext2_dir_entry *dirent;
668 unsigned int i, rec_len, not_device = 0;
673 * If the mode looks OK, we believe it. If the first block in
674 * the i_block array is 0, this cannot be a directory. If the
675 * inode is extent-mapped, it is still the case that the latter
676 * cannot be 0 - the magic number in the extent header would make
679 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
680 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
684 * Check the block numbers in the i_block array for validity:
685 * zero blocks are skipped (but the first one cannot be zero -
686 * see above), other blocks are checked against the first and
687 * max data blocks (from the the superblock) and against the
688 * block bitmap. Any invalid block found means this cannot be
691 * If there are non-zero blocks past the fourth entry, then
692 * this cannot be a device file: we remember that for the next
695 * For extent mapped files, we don't do any sanity checking:
696 * just try to get the phys block of logical block 0 and run
699 * For inline data files, we just try to get the size of inline
700 * data. If it's true, we will treat it as a directory.
703 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
704 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
705 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
708 unsigned int rec_len2;
709 struct ext2_dir_entry de;
711 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
714 * If the size isn't a multiple of 4, it's probably not a
720 * If the first 10 bytes don't look like a directory entry,
721 * it's probably not a directory.
723 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
724 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
725 EXT2_DIR_REC_LEN(0));
726 dotdot = ext2fs_le32_to_cpu(dotdot);
727 de.inode = ext2fs_le32_to_cpu(de.inode);
728 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
729 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
730 if (dotdot >= ctx->fs->super->s_inodes_count ||
731 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
732 dotdot != EXT2_ROOT_INO) ||
733 de.inode >= ctx->fs->super->s_inodes_count ||
734 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
736 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
737 EXT4_INLINE_DATA_DOTDOT_SIZE)
739 /* device files never have a "system.data" entry */
741 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
743 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
746 /* device files are never extent mapped */
749 for (i=0; i < EXT2_N_BLOCKS; i++) {
750 blk = inode->i_block[i];
756 if (blk < ctx->fs->super->s_first_data_block ||
757 blk >= ext2fs_blocks_count(ctx->fs->super) ||
758 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
760 return; /* Invalid block, can't be dir */
762 blk = inode->i_block[0];
766 * If the mode says this is a device file and the i_links_count field
767 * is sane and we have not ruled it out as a device file previously,
768 * we declare it a device file, not a directory.
770 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
771 (inode->i_links_count == 1) && !not_device)
774 /* read the first block */
775 ehandler_operation(_("reading directory block"));
776 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
777 ehandler_operation(0);
781 dirent = (struct ext2_dir_entry *) buf;
782 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
785 if ((ext2fs_dirent_name_len(dirent) != 1) ||
786 (dirent->name[0] != '.') ||
787 (dirent->inode != pctx->ino) ||
790 (rec_len >= ctx->fs->blocksize - 12))
793 dirent = (struct ext2_dir_entry *) (buf + rec_len);
794 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
797 if ((ext2fs_dirent_name_len(dirent) != 2) ||
798 (dirent->name[0] != '.') ||
799 (dirent->name[1] != '.') ||
805 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
806 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
807 e2fsck_write_inode_full(ctx, pctx->ino, inode,
808 EXT2_INODE_SIZE(ctx->fs->super),
809 "check_is_really_dir");
813 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
814 int flags, ext2_icount_t hint,
817 unsigned int threshold;
818 unsigned int save_type;
826 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
828 profile_get_uint(ctx->profile, "scratch_files",
829 "numdirs_threshold", 0, 0, &threshold);
830 profile_get_boolean(ctx->profile, "scratch_files",
831 "icount", 0, 1, &enable);
833 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
835 num_dirs = 1024; /* Guess */
837 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
838 (!threshold || num_dirs > threshold)) {
839 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
844 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
846 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
847 flags |= EXT2_ICOUNT_OPT_FULLMAP;
848 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
849 ctx->fs->default_bitmap_type = save_type;
853 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
855 struct problem_context *pctx)
858 struct ext2_inode_large inode;
861 * Reread inode. If we don't see checksum error, then this inode
862 * has been fixed elsewhere.
864 ctx->stashed_ino = 0;
865 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
867 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
873 * Checksum still doesn't match. That implies that the inode passes
874 * all the sanity checks, so maybe the checksum is simply corrupt.
875 * See if the user will go for fixing that.
877 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
880 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
885 static void reserve_block_for_root_repair(e2fsck_t ctx)
889 ext2_filsys fs = ctx->fs;
891 ctx->root_repair_block = 0;
892 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
895 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
898 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
899 ctx->root_repair_block = blk;
902 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
906 ext2_filsys fs = ctx->fs;
907 static const char name[] = "lost+found";
910 ctx->lnf_repair_block = 0;
911 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
914 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
917 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
918 ctx->lnf_repair_block = blk;
921 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
925 struct ext2_xattr_handle *handle;
928 retval = ext2fs_xattrs_open(fs, ino, &handle);
932 retval = ext2fs_xattrs_read(handle);
936 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
941 (void) ext2fs_xattrs_close(&handle);
945 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
946 struct problem_context *pctx,
953 * If the inode failed the checksum and the user didn't
954 * clear the inode, test the checksum again -- if it still
955 * fails, ask the user if the checksum should be corrected.
957 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
959 ctx->flags |= E2F_FLAG_ABORT;
961 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
963 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
964 if ((ctx)->flags & E2F_FLAG_ABORT) \
968 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
973 for (i = 0; i < EXT2_N_BLOCKS; i++) {
974 x = inode->i_block[i];
975 #ifdef WORDS_BIGENDIAN
976 x = ext2fs_swab32(x);
978 if (x >= ext2fs_blocks_count(fs->super))
986 * Figure out what to do with an inode that has both extents and inline data
987 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
989 static int fix_inline_data_extents_file(e2fsck_t ctx,
991 struct ext2_inode *inode,
993 struct problem_context *pctx)
995 size_t max_inline_ea_size;
996 ext2_filsys fs = ctx->fs;
999 /* Both feature flags not set? Just run the regular checks */
1000 if (!ext2fs_has_feature_extents(fs->super) &&
1001 !ext2fs_has_feature_inline_data(fs->super))
1004 /* Clear both flags if it's a special file */
1005 if (LINUX_S_ISCHR(inode->i_mode) ||
1006 LINUX_S_ISBLK(inode->i_mode) ||
1007 LINUX_S_ISFIFO(inode->i_mode) ||
1008 LINUX_S_ISSOCK(inode->i_mode)) {
1009 check_extents_inlinedata(ctx, pctx);
1013 /* If it looks like an extent tree, try to clear inlinedata */
1014 if (ext2fs_extent_header_verify(inode->i_block,
1015 sizeof(inode->i_block)) == 0 &&
1016 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1017 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1022 /* If it looks short enough to be inline data, try to clear extents */
1023 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1024 max_inline_ea_size = inode_size -
1025 (EXT2_GOOD_OLD_INODE_SIZE +
1026 ((struct ext2_inode_large *)inode)->i_extra_isize);
1028 max_inline_ea_size = 0;
1029 if (EXT2_I_SIZE(inode) <
1030 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1031 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1032 inode->i_flags &= ~EXT4_EXTENTS_FL;
1038 * Too big for inline data, but no evidence of extent tree -
1039 * maybe it's a block map file? If the mappings all look valid?
1041 if (could_be_block_map(fs, inode) &&
1042 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1043 #ifdef WORDS_BIGENDIAN
1046 for (i = 0; i < EXT2_N_BLOCKS; i++)
1047 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1050 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1055 /* Oh well, just clear the busted inode. */
1056 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1057 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1063 e2fsck_write_inode(ctx, ino, inode, "pass1");
1068 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1070 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1071 dgrp_t start = *group, grp;
1072 blk64_t blocks_to_read = 0;
1073 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1075 if (ctx->readahead_kb == 0)
1078 /* Keep iterating groups until we have enough to readahead */
1079 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1080 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1081 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1083 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1084 ext2fs_bg_itable_unused(ctx->fs, grp);
1085 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1087 if (blocks_to_read * ctx->fs->blocksize >
1088 ctx->readahead_kb * 1024)
1092 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1094 if (err == EAGAIN) {
1095 ctx->readahead_kb /= 2;
1101 /* Error; disable itable readahead */
1102 *group = ctx->fs->group_desc_count;
1103 *next_ino = ctx->fs->super->s_inodes_count;
1106 * Don't do more readahead until we've reached the first inode
1107 * of the last inode scan buffer block for the last group.
1110 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1111 ctx->inode_buffer_blocks :
1112 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1113 ctx->fs->blocksize /
1114 EXT2_INODE_SIZE(ctx->fs->super);
1116 *next_ino = inodes_in_group -
1117 (inodes_in_group % inodes_per_buffer) + 1 +
1118 (grp * ctx->fs->super->s_inodes_per_group);
1123 * Check if the passed ino is one of the used superblock quota inodes.
1125 * Before the quota inodes were journaled, older superblock quota inodes
1126 * were just regular files in the filesystem and not reserved inodes. This
1127 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1128 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1130 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1132 enum quota_type qtype;
1134 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1135 if (*quota_sb_inump(sb, qtype) == ino)
1142 * Check if the passed ino is one of the reserved quota inodes.
1143 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1144 * inodes. These inodes may or may not be in use by the quota feature.
1146 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1148 enum quota_type qtype;
1150 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1151 if (quota_type2inum(qtype, fs->super) == ino)
1157 static int e2fsck_should_abort(e2fsck_t ctx)
1159 e2fsck_t global_ctx;
1161 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1164 if (ctx->global_ctx) {
1165 global_ctx = ctx->global_ctx;
1166 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1172 void e2fsck_pass1_run(e2fsck_t ctx)
1175 ext2_filsys fs = ctx->fs;
1177 struct ext2_inode *inode = NULL;
1178 ext2_inode_scan scan = NULL;
1179 char *block_buf = NULL;
1180 #ifdef RESOURCE_TRACK
1181 struct resource_track rtrack;
1183 unsigned char frag, fsize;
1184 struct problem_context pctx;
1185 struct scan_callback_struct scan_struct;
1186 struct ext2_super_block *sb = ctx->fs->super;
1188 const char *eop_next_inode = _("getting next inode from scan");
1189 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1190 int low_dtime_check = 1;
1191 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1192 unsigned int bufsize;
1193 int failed_csum = 0;
1194 ext2_ino_t ino_threshold = 0;
1195 dgrp_t ra_group = 0;
1196 struct ea_quota ea_ibody_quota;
1197 struct process_inode_block *inodes_to_process;
1198 int process_inode_count;
1200 init_resource_track(&rtrack, ctx->fs->io);
1201 clear_problem_context(&pctx);
1203 /* If we can do readahead, figure out how many groups to pull in. */
1204 if (!e2fsck_can_readahead(ctx->fs))
1205 ctx->readahead_kb = 0;
1206 else if (ctx->readahead_kb == ~0ULL)
1207 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1208 pass1_readahead(ctx, &ra_group, &ino_threshold);
1210 if (!(ctx->options & E2F_OPT_PREEN))
1211 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1213 if (ext2fs_has_feature_dir_index(fs->super) &&
1214 !(ctx->options & E2F_OPT_NO)) {
1215 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1216 ctx->dirs_to_hash = 0;
1220 mtrace_print("Pass 1");
1223 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1224 extent_fs = ext2fs_has_feature_extents(sb);
1225 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1226 casefold_fs = ext2fs_has_feature_casefold(sb);
1229 * Allocate bitmaps structures
1231 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1232 EXT2FS_BMAP64_RBTREE,
1234 &ctx->inode_used_map);
1237 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1238 ctx->flags |= E2F_FLAG_ABORT;
1241 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1242 _("directory inode map"),
1243 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1244 EXT2FS_BMAP64_AUTODIR,
1245 "inode_dir_map", &ctx->inode_dir_map);
1248 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1249 ctx->flags |= E2F_FLAG_ABORT;
1252 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1253 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1254 "inode_reg_map", &ctx->inode_reg_map);
1257 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1258 ctx->flags |= E2F_FLAG_ABORT;
1261 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1262 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1263 "block_found_map", &ctx->block_found_map);
1266 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1267 ctx->flags |= E2F_FLAG_ABORT;
1270 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1271 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1272 "block_metadata_map", &ctx->block_metadata_map);
1275 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1276 ctx->flags |= E2F_FLAG_ABORT;
1281 e2fsck_allocate_inode_bitmap(fs,
1282 _("inode casefold map"),
1283 EXT2FS_BMAP64_RBTREE,
1284 "inode_casefold_map",
1285 &ctx->inode_casefold_map);
1288 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1289 ctx->flags |= E2F_FLAG_ABORT;
1293 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1294 &ctx->inode_link_info);
1296 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1297 ctx->flags |= E2F_FLAG_ABORT;
1300 bufsize = inode_size;
1301 if (bufsize < sizeof(struct ext2_inode_large))
1302 bufsize = sizeof(struct ext2_inode_large);
1303 inode = (struct ext2_inode *)
1304 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1306 inodes_to_process = (struct process_inode_block *)
1307 e2fsck_allocate_memory(ctx,
1308 (ctx->process_inode_size *
1309 sizeof(struct process_inode_block)),
1310 "array of inodes to process");
1311 process_inode_count = 0;
1313 pctx.errcode = ext2fs_init_dblist(fs, 0);
1315 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1316 ctx->flags |= E2F_FLAG_ABORT;
1321 * If the last orphan field is set, clear it, since the pass1
1322 * processing will automatically find and clear the orphans.
1323 * In the future, we may want to try using the last_orphan
1324 * linked list ourselves, but for now, we clear it so that the
1325 * ext3 mount code won't get confused.
1327 if (!(ctx->options & E2F_OPT_READONLY)) {
1328 if (fs->super->s_last_orphan) {
1329 fs->super->s_last_orphan = 0;
1330 ext2fs_mark_super_dirty(fs);
1334 mark_table_blocks(ctx);
1335 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1336 &ctx->block_found_map);
1338 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1339 ctx->flags |= E2F_FLAG_ABORT;
1342 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1343 "block interate buffer");
1344 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1345 e2fsck_use_inode_shortcuts(ctx, 1);
1346 e2fsck_intercept_block_allocations(ctx);
1347 old_op = ehandler_operation(_("opening inode scan"));
1348 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1350 ehandler_operation(old_op);
1352 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1353 ctx->flags |= E2F_FLAG_ABORT;
1356 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1357 EXT2_SF_WARN_GARBAGE_INODES, 0);
1358 ctx->stashed_inode = inode;
1359 scan_struct.ctx = ctx;
1360 scan_struct.block_buf = block_buf;
1361 scan_struct.inodes_to_process = inodes_to_process;
1362 scan_struct.process_inode_count = &process_inode_count;
1363 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1364 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1365 ctx->fs->group_desc_count)))
1367 if ((fs->super->s_wtime &&
1368 fs->super->s_wtime < fs->super->s_inodes_count) ||
1369 (fs->super->s_mtime &&
1370 fs->super->s_mtime < fs->super->s_inodes_count) ||
1371 (fs->super->s_mkfs_time &&
1372 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1373 low_dtime_check = 0;
1375 if (ext2fs_has_feature_mmp(fs->super) &&
1376 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1377 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1378 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1379 fs->super->s_mmp_block);
1381 /* Set up ctx->lost_and_found if possible */
1382 (void) e2fsck_get_lost_and_found(ctx, 0);
1385 if (ctx->global_ctx) {
1386 if (ctx->options & E2F_OPT_DEBUG &&
1387 ctx->options & E2F_OPT_MULTITHREAD)
1388 fprintf(stderr, "thread %d jumping to group %d\n",
1389 ctx->thread_info.et_thread_index,
1390 ctx->thread_info.et_group_start);
1391 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1392 ctx->thread_info.et_group_start);
1394 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1395 ctx->flags |= E2F_FLAG_ABORT;
1402 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1403 if (e2fsck_mmp_update(fs))
1404 fatal_error(ctx, 0);
1406 old_op = ehandler_operation(eop_next_inode);
1407 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1409 if (ino > ino_threshold)
1410 pass1_readahead(ctx, &ra_group, &ino_threshold);
1411 ehandler_operation(old_op);
1412 if (e2fsck_should_abort(ctx))
1414 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1416 * If badblocks says badblocks is bad, offer to clear
1417 * the list, update the in-core bb list, and restart
1420 if (ino == EXT2_BAD_INO &&
1421 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1425 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1426 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1427 ctx->fs->badblocks = NULL;
1428 err = ext2fs_read_bb_inode(ctx->fs,
1429 &ctx->fs->badblocks);
1431 fix_problem(ctx, PR_1_ISCAN_ERROR,
1433 ctx->flags |= E2F_FLAG_ABORT;
1435 ctx->flags |= E2F_FLAG_RESTART;
1438 if (!ctx->inode_bb_map)
1440 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1441 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1444 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1447 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1448 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1449 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1450 ctx->flags |= E2F_FLAG_ABORT;
1456 if (ctx->global_ctx)
1457 ctx->thread_info.et_inode_number++;
1461 ctx->stashed_ino = ino;
1463 /* Clear trashed inode? */
1464 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1465 inode->i_links_count > 0 &&
1466 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1468 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1470 failed_csum = pctx.errcode != 0;
1473 * Check for inodes who might have been part of the
1474 * orphaned list linked list. They should have gotten
1475 * dealt with by now, unless the list had somehow been
1478 * FIXME: In the future, inodes which are still in use
1479 * (and which are therefore) pending truncation should
1480 * be handled specially. Right now we just clear the
1481 * dtime field, and the normal e2fsck handling of
1482 * inodes where i_size and the inode blocks are
1483 * inconsistent is to fix i_size, instead of releasing
1484 * the extra blocks. This won't catch the inodes that
1485 * was at the end of the orphan list, but it's better
1486 * than nothing. The right answer is that there
1487 * shouldn't be any bugs in the orphan list handling. :-)
1489 if (inode->i_dtime && low_dtime_check &&
1490 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1491 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1492 inode->i_dtime = inode->i_links_count ?
1494 e2fsck_write_inode(ctx, ino, inode,
1500 if (inode->i_links_count) {
1501 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1502 ino, inode->i_links_count);
1504 pctx.num = inode->i_links_count;
1505 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1506 ctx->flags |= E2F_FLAG_ABORT;
1509 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1510 !quota_inum_is_reserved(fs, ino)) {
1511 if (!inode->i_dtime && inode->i_mode) {
1512 if (fix_problem(ctx,
1513 PR_1_ZERO_DTIME, &pctx)) {
1514 inode->i_dtime = ctx->now;
1515 e2fsck_write_inode(ctx, ino, inode,
1520 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1524 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1525 ((!LINUX_S_ISDIR(inode->i_mode) &&
1526 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1528 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1529 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1530 e2fsck_write_inode(ctx, ino, inode, "pass1");
1533 /* Conflicting inlinedata/extents inode flags? */
1534 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1535 (inode->i_flags & EXT4_EXTENTS_FL)) {
1536 int res = fix_inline_data_extents_file(ctx, ino, inode,
1540 /* skip FINISH_INODE_LOOP */
1545 /* Test for incorrect inline_data flags settings. */
1546 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1547 (ino >= EXT2_FIRST_INODE(fs->super))) {
1550 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1551 if (!pctx.errcode &&
1552 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1553 ext2fs_set_feature_inline_data(sb);
1554 ext2fs_mark_super_dirty(fs);
1556 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1557 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1558 /* skip FINISH_INODE_LOOP */
1563 /* Test for inline data flag but no attr */
1564 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1565 (ino >= EXT2_FIRST_INODE(fs->super))) {
1572 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1573 err = get_inline_data_ea_size(fs, ino, &size);
1574 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1575 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1579 /* Everything is awesome... */
1581 case EXT2_ET_BAD_EA_BLOCK_NUM:
1582 case EXT2_ET_BAD_EA_HASH:
1583 case EXT2_ET_BAD_EA_HEADER:
1584 case EXT2_ET_EA_BAD_NAME_LEN:
1585 case EXT2_ET_EA_BAD_VALUE_SIZE:
1586 case EXT2_ET_EA_KEY_NOT_FOUND:
1587 case EXT2_ET_EA_NO_SPACE:
1588 case EXT2_ET_MISSING_EA_FEATURE:
1589 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1590 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1591 case EXT2_ET_INLINE_DATA_NO_SPACE:
1592 case EXT2_ET_NO_INLINE_DATA:
1593 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1594 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1595 case EXT2_ET_EA_INODE_CORRUPTED:
1596 /* broken EA or no system.data EA; truncate */
1597 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1599 err = ext2fs_inode_size_set(fs, inode, 0);
1602 ctx->flags |= E2F_FLAG_ABORT;
1605 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1606 memset(&inode->i_block, 0,
1607 sizeof(inode->i_block));
1608 e2fsck_write_inode(ctx, ino, inode,
1614 /* Some other kind of non-xattr error? */
1616 ctx->flags |= E2F_FLAG_ABORT;
1622 * Test for incorrect extent flag settings.
1624 * On big-endian machines we must be careful:
1625 * When the inode is read, the i_block array is not swapped
1626 * if the extent flag is set. Therefore if we are testing
1627 * for or fixing a wrongly-set flag, we must potentially
1628 * (un)swap before testing, or after fixing.
1632 * In this case the extents flag was set when read, so
1633 * extent_header_verify is ok. If the inode is cleared,
1634 * no need to swap... so no extra swapping here.
1636 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1637 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1638 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1639 if ((ext2fs_extent_header_verify(inode->i_block,
1640 sizeof(inode->i_block)) == 0) &&
1641 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1642 ext2fs_set_feature_extents(sb);
1643 ext2fs_mark_super_dirty(fs);
1645 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1647 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1648 if (ino == EXT2_BAD_INO)
1649 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1651 /* skip FINISH_INODE_LOOP */
1657 * For big-endian machines:
1658 * If the inode didn't have the extents flag set when it
1659 * was read, then the i_blocks array was swapped. To test
1660 * as an extents header, we must swap it back first.
1661 * IF we then set the extents flag, the entire i_block
1662 * array must be un/re-swapped to make it proper extents data.
1664 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1665 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1666 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1667 (LINUX_S_ISREG(inode->i_mode) ||
1668 LINUX_S_ISDIR(inode->i_mode))) {
1670 #ifdef WORDS_BIGENDIAN
1671 __u32 tmp_block[EXT2_N_BLOCKS];
1673 for (i = 0; i < EXT2_N_BLOCKS; i++)
1674 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1677 ehp = inode->i_block;
1679 if ((ext2fs_extent_header_verify(ehp,
1680 sizeof(inode->i_block)) == 0) &&
1681 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1682 inode->i_flags |= EXT4_EXTENTS_FL;
1683 #ifdef WORDS_BIGENDIAN
1684 memcpy(inode->i_block, tmp_block,
1685 sizeof(inode->i_block));
1687 e2fsck_write_inode(ctx, ino, inode, "pass1");
1692 if (ino == EXT2_BAD_INO) {
1693 struct process_block_struct pb;
1695 if ((failed_csum || inode->i_mode || inode->i_uid ||
1696 inode->i_gid || inode->i_links_count ||
1697 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1698 inode->i_file_acl) &&
1699 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1700 memset(inode, 0, sizeof(struct ext2_inode));
1701 e2fsck_write_inode(ctx, ino, inode,
1706 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1707 &pb.fs_meta_blocks);
1710 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1711 ctx->flags |= E2F_FLAG_ABORT;
1714 pb.ino = EXT2_BAD_INO;
1715 pb.num_blocks = pb.last_block = 0;
1716 pb.last_db_block = -1;
1717 pb.num_illegal_blocks = 0;
1718 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1719 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1723 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1724 block_buf, process_bad_block, &pb);
1725 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1727 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1728 ctx->flags |= E2F_FLAG_ABORT;
1732 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1733 ctx->flags |= E2F_FLAG_ABORT;
1736 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1737 clear_problem_context(&pctx);
1738 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1740 } else if (ino == EXT2_ROOT_INO) {
1742 * Make sure the root inode is a directory; if
1743 * not, offer to clear it. It will be
1744 * regenerated in pass #3.
1746 if (!LINUX_S_ISDIR(inode->i_mode)) {
1747 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1751 * If dtime is set, offer to clear it. mke2fs
1752 * version 0.2b created filesystems with the
1753 * dtime field set for the root and lost+found
1754 * directories. We won't worry about
1755 * /lost+found, since that can be regenerated
1756 * easily. But we will fix the root directory
1757 * as a special case.
1759 if (inode->i_dtime && inode->i_links_count) {
1760 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1762 e2fsck_write_inode(ctx, ino, inode,
1767 } else if (ino == EXT2_JOURNAL_INO) {
1768 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1769 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1770 if (!LINUX_S_ISREG(inode->i_mode) &&
1771 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1773 inode->i_mode = LINUX_S_IFREG;
1774 e2fsck_write_inode(ctx, ino, inode,
1778 check_blocks(ctx, &pctx, block_buf, NULL);
1779 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1782 if ((inode->i_links_count ||
1783 inode->i_blocks || inode->i_block[0]) &&
1784 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1786 memset(inode, 0, inode_size);
1787 ext2fs_icount_store(ctx->inode_link_info,
1789 e2fsck_write_inode_full(ctx, ino, inode,
1790 inode_size, "pass1");
1793 } else if (quota_inum_is_reserved(fs, ino)) {
1794 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1795 if (ext2fs_has_feature_quota(fs->super) &&
1796 quota_inum_is_super(fs->super, ino)) {
1797 if (!LINUX_S_ISREG(inode->i_mode) &&
1798 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1800 inode->i_mode = LINUX_S_IFREG;
1801 e2fsck_write_inode(ctx, ino, inode,
1805 check_blocks(ctx, &pctx, block_buf, NULL);
1806 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1809 if ((inode->i_links_count ||
1810 inode->i_blocks || inode->i_block[0]) &&
1811 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1813 memset(inode, 0, inode_size);
1814 ext2fs_icount_store(ctx->inode_link_info,
1816 e2fsck_write_inode_full(ctx, ino, inode,
1817 inode_size, "pass1");
1820 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1821 problem_t problem = 0;
1823 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1824 if (ino == EXT2_BOOT_LOADER_INO) {
1825 if (LINUX_S_ISDIR(inode->i_mode))
1826 problem = PR_1_RESERVED_BAD_MODE;
1827 } else if (ino == EXT2_RESIZE_INO) {
1828 if (inode->i_mode &&
1829 !LINUX_S_ISREG(inode->i_mode))
1830 problem = PR_1_RESERVED_BAD_MODE;
1832 if (inode->i_mode != 0)
1833 problem = PR_1_RESERVED_BAD_MODE;
1836 if (fix_problem(ctx, problem, &pctx)) {
1838 e2fsck_write_inode(ctx, ino, inode,
1843 check_blocks(ctx, &pctx, block_buf, NULL);
1844 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1848 if (!inode->i_links_count) {
1849 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1853 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1854 * deleted files. Oops.
1856 * Since all new ext2 implementations get this right,
1857 * we now assume that the case of non-zero
1858 * i_links_count and non-zero dtime means that we
1859 * should keep the file, not delete it.
1862 if (inode->i_dtime) {
1863 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1865 e2fsck_write_inode(ctx, ino, inode, "pass1");
1870 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1871 switch (fs->super->s_creator_os) {
1873 frag = inode->osd2.hurd2.h_i_frag;
1874 fsize = inode->osd2.hurd2.h_i_fsize;
1880 if (inode->i_faddr || frag || fsize ||
1881 (!ext2fs_has_feature_largedir(fs->super) &&
1882 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1883 mark_inode_bad(ctx, ino);
1884 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1885 !ext2fs_has_feature_64bit(fs->super) &&
1886 inode->osd2.linux2.l_i_file_acl_high != 0)
1887 mark_inode_bad(ctx, ino);
1888 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1889 !ext2fs_has_feature_huge_file(fs->super) &&
1890 (inode->osd2.linux2.l_i_blocks_hi != 0))
1891 mark_inode_bad(ctx, ino);
1892 if (inode->i_flags & EXT2_IMAGIC_FL) {
1894 if (!ctx->inode_imagic_map)
1895 alloc_imagic_map(ctx);
1896 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1899 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1900 inode->i_flags &= ~EXT2_IMAGIC_FL;
1901 e2fsck_write_inode(ctx, ino,
1908 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1909 check_is_really_dir(ctx, &pctx, block_buf);
1912 * ext2fs_inode_has_valid_blocks2 does not actually look
1913 * at i_block[] values, so not endian-sensitive here.
1915 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1916 LINUX_S_ISLNK(inode->i_mode) &&
1917 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1918 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1919 inode->i_flags &= ~EXT4_EXTENTS_FL;
1920 e2fsck_write_inode(ctx, ino, inode, "pass1");
1924 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
1925 add_encrypted_file(ctx, &pctx) < 0)
1928 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
1929 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
1931 if (LINUX_S_ISDIR(inode->i_mode)) {
1932 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1933 e2fsck_add_dir_info(ctx, ino, 0);
1934 ctx->fs_directory_count++;
1935 if (inode->i_flags & EXT4_CASEFOLD_FL)
1936 add_casefolded_dir(ctx, ino);
1937 } else if (LINUX_S_ISREG (inode->i_mode)) {
1938 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1939 ctx->fs_regular_count++;
1940 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1941 e2fsck_pass1_check_device_inode(fs, inode)) {
1942 check_extents_inlinedata(ctx, &pctx);
1943 check_immutable(ctx, &pctx);
1944 check_size(ctx, &pctx);
1945 ctx->fs_chardev_count++;
1946 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1947 e2fsck_pass1_check_device_inode(fs, inode)) {
1948 check_extents_inlinedata(ctx, &pctx);
1949 check_immutable(ctx, &pctx);
1950 check_size(ctx, &pctx);
1951 ctx->fs_blockdev_count++;
1952 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1953 e2fsck_pass1_check_symlink(fs, ino, inode,
1955 check_immutable(ctx, &pctx);
1956 ctx->fs_symlinks_count++;
1957 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1958 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1960 } else if (ext2fs_is_fast_symlink(inode)) {
1961 ctx->fs_fast_symlinks_count++;
1962 check_blocks(ctx, &pctx, block_buf,
1964 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1968 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1969 e2fsck_pass1_check_device_inode(fs, inode)) {
1970 check_extents_inlinedata(ctx, &pctx);
1971 check_immutable(ctx, &pctx);
1972 check_size(ctx, &pctx);
1973 ctx->fs_fifo_count++;
1974 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1975 e2fsck_pass1_check_device_inode(fs, inode)) {
1976 check_extents_inlinedata(ctx, &pctx);
1977 check_immutable(ctx, &pctx);
1978 check_size(ctx, &pctx);
1979 ctx->fs_sockets_count++;
1981 mark_inode_bad(ctx, ino);
1982 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1983 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1984 if (inode->i_block[EXT2_IND_BLOCK])
1985 ctx->fs_ind_count++;
1986 if (inode->i_block[EXT2_DIND_BLOCK])
1987 ctx->fs_dind_count++;
1988 if (inode->i_block[EXT2_TIND_BLOCK])
1989 ctx->fs_tind_count++;
1991 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1992 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1993 (inode->i_block[EXT2_IND_BLOCK] ||
1994 inode->i_block[EXT2_DIND_BLOCK] ||
1995 inode->i_block[EXT2_TIND_BLOCK] ||
1996 ext2fs_file_acl_block(fs, inode))) {
1997 struct process_inode_block *itp;
1999 itp = &inodes_to_process[process_inode_count];
2001 itp->ea_ibody_quota = ea_ibody_quota;
2002 if (inode_size < sizeof(struct ext2_inode_large))
2003 memcpy(&itp->inode, inode, inode_size);
2005 memcpy(&itp->inode, inode, sizeof(itp->inode));
2006 process_inode_count++;
2008 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2010 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2012 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2015 if (process_inode_count >= ctx->process_inode_size) {
2016 process_inodes(ctx, block_buf, inodes_to_process,
2017 &process_inode_count);
2019 if (e2fsck_should_abort(ctx))
2023 process_inodes(ctx, block_buf, inodes_to_process,
2024 &process_inode_count);
2025 ext2fs_close_inode_scan(scan);
2028 reserve_block_for_root_repair(ctx);
2029 reserve_block_for_lnf_repair(ctx);
2032 * If any extended attribute blocks' reference counts need to
2033 * be adjusted, either up (ctx->refcount_extra), or down
2034 * (ctx->refcount), then fix them.
2036 if (ctx->refcount) {
2037 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
2038 ea_refcount_free(ctx->refcount);
2041 if (ctx->refcount_extra) {
2042 adjust_extattr_refcount(ctx, ctx->refcount_extra,
2044 ea_refcount_free(ctx->refcount_extra);
2045 ctx->refcount_extra = 0;
2048 if (ctx->ea_block_quota_blocks) {
2049 ea_refcount_free(ctx->ea_block_quota_blocks);
2050 ctx->ea_block_quota_blocks = 0;
2053 if (ctx->ea_block_quota_inodes) {
2054 ea_refcount_free(ctx->ea_block_quota_inodes);
2055 ctx->ea_block_quota_inodes = 0;
2058 if (ctx->invalid_bitmaps)
2059 handle_fs_bad_blocks(ctx);
2061 /* We don't need the block_ea_map any more */
2062 if (ctx->block_ea_map) {
2063 ext2fs_free_block_bitmap(ctx->block_ea_map);
2064 ctx->block_ea_map = 0;
2067 /* We don't need the encryption policy => ID map any more */
2068 destroy_encryption_policy_map(ctx);
2070 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2071 clear_problem_context(&pctx);
2072 pctx.errcode = ext2fs_create_resize_inode(fs);
2074 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2076 ctx->flags |= E2F_FLAG_ABORT;
2081 if (!pctx.errcode) {
2082 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2084 inode->i_mtime = ctx->now;
2085 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2088 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2091 if (ctx->flags & E2F_FLAG_RESTART) {
2093 * Only the master copy of the superblock and block
2094 * group descriptors are going to be written during a
2095 * restart, so set the superblock to be used to be the
2096 * master superblock.
2098 ctx->use_superblock = 0;
2102 if (ctx->large_dirs && !ext2fs_has_feature_largedir(fs->super)) {
2103 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2104 ext2fs_set_feature_largedir(fs->super);
2105 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2106 ext2fs_mark_super_dirty(fs);
2108 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2109 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2110 ext2fs_update_dynamic_rev(fs);
2111 ext2fs_mark_super_dirty(fs);
2115 if (ctx->block_dup_map) {
2116 if (ctx->options & E2F_OPT_PREEN) {
2117 clear_problem_context(&pctx);
2118 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2120 e2fsck_pass1_dupblocks(ctx, block_buf);
2122 ctx->flags |= E2F_FLAG_ALLOC_OK;
2124 e2fsck_use_inode_shortcuts(ctx, 0);
2125 ext2fs_free_mem(&inodes_to_process);
2126 inodes_to_process = 0;
2129 ext2fs_close_inode_scan(scan);
2131 ext2fs_free_mem(&block_buf);
2133 ext2fs_free_mem(&inode);
2136 * The l+f inode may have been cleared, so zap it now and
2137 * later passes will recalculate it if necessary
2139 ctx->lost_and_found = 0;
2141 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2142 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2144 ctx->invalid_bitmaps++;
2147 static void init_ext2_max_sizes()
2153 * Init ext2_max_sizes which will be immutable and shared between
2156 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
2158 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
2159 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
2160 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
2161 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
2162 max_sizes = (max_sizes * (1UL << i));
2163 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
2169 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2170 ext2fs_generic_bitmap *dest)
2174 ret = ext2fs_copy_bitmap(*src, dest);
2183 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2186 ext2fs_free_generic_bmap(*bitmap);
2192 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2193 ext2fs_generic_bitmap *dest)
2198 if (*dest == NULL) {
2202 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2212 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2217 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2218 dest->inode_map = NULL;
2219 dest->block_map = NULL;
2220 dest->badblocks = NULL;
2222 dest->dblist->fs = dest;
2223 if (src->block_map) {
2224 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2229 if (src->inode_map) {
2230 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2236 if (src->badblocks) {
2237 retval = ext2fs_badblocks_copy(src->badblocks,
2243 /* disable it for now */
2244 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2245 retval = ext2fs_open_channel(dest, src_context->io_options,
2246 src_context->io_manager,
2247 src_context->openfs_flags,
2248 src->io->block_size);
2252 /* Block size might not be default */
2253 io_channel_set_blksize(dest->io, src->io->block_size);
2254 ehandler_init(dest->io);
2256 assert(dest->io->magic == src->io->magic);
2257 assert(dest->io->manager == src->io->manager);
2258 assert(strcmp(dest->io->name, src->io->name) == 0);
2259 assert(dest->io->block_size == src->io->block_size);
2260 assert(dest->io->read_error == src->io->read_error);
2261 assert(dest->io->write_error == src->io->write_error);
2262 assert(dest->io->refcount == src->io->refcount);
2263 assert(dest->io->flags == src->io->flags);
2264 assert(dest->io->app_data == dest);
2265 assert(src->io->app_data == src);
2266 assert(dest->io->align == src->io->align);
2268 /* The data should be written to disk immediately */
2269 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2270 /* icache will be rebuilt if needed, so do not copy from @src */
2275 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2277 struct ext2_inode_cache *icache = dest->icache;
2278 errcode_t retval = 0;
2280 io_channel dest_image_io;
2281 ext2fs_inode_bitmap inode_map;
2282 ext2fs_block_bitmap block_map;
2283 ext2_badblocks_list badblocks;
2287 dest_image_io = dest->image_io;
2288 inode_map = dest->inode_map;
2289 block_map = dest->block_map;
2290 badblocks = dest->badblocks;
2291 dblist = dest->dblist;
2293 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2295 dest->image_io = dest_image_io;
2296 dest->icache = icache;
2297 dest->inode_map = inode_map;
2298 dest->block_map = block_map;
2299 dest->badblocks = badblocks;
2300 dest->dblist = dblist;
2302 dest->dblist->fs = dest;
2305 ext2fs_free_inode_cache(src->icache);
2309 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2314 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2321 retval = ext2fs_merge_dblist(src->dblist,
2326 dest->dblist = src->dblist;
2327 dest->dblist->fs = dest;
2332 if (src->badblocks) {
2333 if (dest->badblocks == NULL)
2334 retval = ext2fs_badblocks_copy(src->badblocks,
2337 retval = ext2fs_badblocks_merge(src->badblocks,
2341 io_channel_close(src->io);
2343 ext2fs_free_generic_bmap(src->inode_map);
2345 ext2fs_free_generic_bmap(src->block_map);
2347 ext2fs_badblocks_list_free(src->badblocks);
2349 ext2fs_free_dblist(src->dblist);
2354 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2355 int thread_index, int num_threads)
2358 e2fsck_t thread_context;
2359 ext2_filsys thread_fs;
2360 ext2_filsys global_fs = global_ctx->fs;
2361 struct e2fsck_thread *tinfo;
2362 dgrp_t average_group;
2364 assert(global_ctx->inode_used_map == NULL);
2365 assert(global_ctx->inode_dir_map == NULL);
2366 assert(global_ctx->inode_bb_map == NULL);
2367 assert(global_ctx->inode_imagic_map == NULL);
2368 assert(global_ctx->inode_reg_map == NULL);
2369 assert(global_ctx->inodes_to_rebuild == NULL);
2371 assert(global_ctx->block_found_map == NULL);
2372 assert(global_ctx->block_dup_map == NULL);
2373 assert(global_ctx->block_ea_map == NULL);
2374 assert(global_ctx->block_metadata_map == NULL);
2375 assert(global_ctx->fs->dblist == NULL);
2377 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2379 com_err(global_ctx->program_name, retval, "while allocating memory");
2382 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2383 thread_context->global_ctx = global_ctx;
2385 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2387 com_err(global_ctx->program_name, retval, "while allocating memory");
2391 io_channel_flush_cleanup(global_fs->io);
2392 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2394 com_err(global_ctx->program_name, retval, "while copying fs");
2397 thread_fs->priv_data = thread_context;
2399 thread_context->thread_info.et_thread_index = thread_index;
2400 set_up_logging(thread_context);
2403 * Distribute work to multiple threads:
2404 * Each thread work on fs->group_desc_count / nthread groups.
2406 tinfo = &thread_context->thread_info;
2407 average_group = thread_fs->group_desc_count / num_threads;
2408 if (average_group == 0)
2410 tinfo->et_group_start = average_group * thread_index;
2411 if (thread_index == num_threads - 1)
2412 tinfo->et_group_end = thread_fs->group_desc_count;
2414 tinfo->et_group_end = average_group * (thread_index + 1);
2415 tinfo->et_group_next = tinfo->et_group_start;
2416 tinfo->et_inode_number = 0;
2417 tinfo->et_log_buf[0] = '\0';
2418 tinfo->et_log_length = 0;
2419 if (thread_context->options & E2F_OPT_MULTITHREAD)
2420 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2421 tinfo->et_group_start, tinfo->et_group_end);
2422 thread_context->fs = thread_fs;
2423 *thread_ctx = thread_context;
2426 ext2fs_free_mem(&thread_fs);
2428 ext2fs_free_mem(&thread_context);
2432 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2434 if (thread_ctx->dir_info == NULL)
2437 if (global_ctx->dir_info == NULL) {
2438 global_ctx->dir_info = thread_ctx->dir_info;
2439 thread_ctx->dir_info = NULL;
2443 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2444 global_ctx->dir_info);
2447 static inline errcode_t
2448 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2449 ext2_icount_t *src_icount)
2452 if (*dest_icount == NULL) {
2453 *dest_icount = *src_icount;
2458 ret = ext2fs_icount_merge(*src_icount,
2468 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2472 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2473 &thread_ctx->inode_count);
2476 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2477 &thread_ctx->inode_link_info);
2482 static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2485 int flags = global_ctx->flags;
2486 ext2_filsys thread_fs = thread_ctx->fs;
2487 ext2_filsys global_fs = global_ctx->fs;
2488 FILE *global_logf = global_ctx->logf;
2489 FILE *global_problem_logf = global_ctx->problem_logf;
2490 ext2fs_inode_bitmap inode_bad_map = global_ctx->inode_bad_map;
2491 struct dir_info_db *dir_info = global_ctx->dir_info;
2492 ext2fs_inode_bitmap inode_used_map = global_ctx->inode_used_map;
2493 ext2fs_inode_bitmap inode_dir_map = global_ctx->inode_dir_map;
2494 ext2fs_inode_bitmap inode_bb_map = global_ctx->inode_bb_map;
2495 ext2fs_inode_bitmap inode_imagic_map = global_ctx->inode_imagic_map;
2496 ext2fs_inode_bitmap inode_reg_map = global_ctx->inode_reg_map;
2497 ext2fs_block_bitmap block_found_map = global_ctx->block_found_map;
2498 ext2fs_block_bitmap block_dup_map = global_ctx->block_dup_map;
2499 ext2fs_block_bitmap block_ea_map = global_ctx->block_ea_map;
2500 ext2fs_block_bitmap block_metadata_map = global_ctx->block_metadata_map;
2501 ext2fs_block_bitmap inodes_to_rebuild = global_ctx->inodes_to_rebuild;
2502 ext2_icount_t inode_count = global_ctx->inode_count;
2503 ext2_icount_t inode_link_info = global_ctx->inode_link_info;
2505 #ifdef HAVE_SETJMP_H
2508 memcpy(old_jmp, global_ctx->abort_loc, sizeof(jmp_buf));
2510 memcpy(global_ctx, thread_ctx, sizeof(struct e2fsck_struct));
2511 #ifdef HAVE_SETJMP_H
2512 memcpy(global_ctx->abort_loc, old_jmp, sizeof(jmp_buf));
2515 global_ctx->inode_used_map = inode_used_map;
2516 global_ctx->inode_bad_map = inode_bad_map;
2517 global_ctx->inode_dir_map = inode_dir_map;
2518 global_ctx->inode_bb_map = inode_bb_map;
2519 global_ctx->inode_imagic_map = inode_imagic_map;
2520 global_ctx->inodes_to_rebuild = inodes_to_rebuild;
2521 global_ctx->inode_reg_map = inode_reg_map;
2522 global_ctx->block_found_map = block_found_map;
2523 global_ctx->block_dup_map = block_dup_map;
2524 global_ctx->block_ea_map = block_ea_map;
2525 global_ctx->block_metadata_map = block_metadata_map;
2526 global_ctx->dir_info = dir_info;
2527 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2528 global_ctx->inode_count = inode_count;
2529 global_ctx->inode_link_info = inode_link_info;
2531 /* Keep the global singal flags*/
2532 global_ctx->flags |= (flags & E2F_FLAG_SIGNAL_MASK) |
2533 (global_ctx->flags & E2F_FLAG_SIGNAL_MASK);
2535 retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
2537 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2540 global_fs->priv_data = global_ctx;
2541 global_ctx->fs = global_fs;
2542 global_ctx->logf = global_logf;
2543 global_ctx->problem_logf = global_problem_logf;
2544 global_ctx->global_ctx = NULL;
2545 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2547 com_err(global_ctx->program_name, 0,
2548 _("while merging icounts\n"));
2552 retval = e2fsck_pass1_merge_bitmap(global_fs,
2553 &thread_ctx->inode_used_map,
2554 &global_ctx->inode_used_map);
2558 retval = e2fsck_pass1_merge_bitmap(global_fs,
2559 &thread_ctx->inode_bad_map,
2560 &global_ctx->inode_bad_map);
2563 retval = e2fsck_pass1_merge_bitmap(global_fs,
2564 &thread_ctx->inode_dir_map,
2565 &global_ctx->inode_dir_map);
2568 retval = e2fsck_pass1_merge_bitmap(global_fs,
2569 &thread_ctx->inode_bb_map,
2570 &global_ctx->inode_bb_map);
2573 retval = e2fsck_pass1_merge_bitmap(global_fs,
2574 &thread_ctx->inode_imagic_map,
2575 &global_ctx->inode_imagic_map);
2578 retval = e2fsck_pass1_merge_bitmap(global_fs,
2579 &thread_ctx->inode_reg_map,
2580 &global_ctx->inode_reg_map);
2583 retval = e2fsck_pass1_merge_bitmap(global_fs,
2584 &thread_ctx->inodes_to_rebuild,
2585 &global_ctx->inodes_to_rebuild);
2588 retval = e2fsck_pass1_merge_bitmap(global_fs,
2589 &thread_ctx->block_found_map,
2590 &global_ctx->block_found_map);
2593 retval = e2fsck_pass1_merge_bitmap(global_fs,
2594 &thread_ctx->block_dup_map,
2595 &global_ctx->block_dup_map);
2598 retval = e2fsck_pass1_merge_bitmap(global_fs,
2599 &thread_ctx->block_ea_map,
2600 &global_ctx->block_ea_map);
2603 retval = e2fsck_pass1_merge_bitmap(global_fs,
2604 &thread_ctx->block_metadata_map,
2605 &global_ctx->block_metadata_map);
2612 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2616 retval = e2fsck_pass1_thread_join_one(global_ctx, thread_ctx);
2617 ext2fs_free_mem(&thread_ctx->fs);
2618 if (thread_ctx->logf)
2619 fclose(thread_ctx->logf);
2620 if (thread_ctx->problem_logf) {
2621 fputs("</problem_log>\n", thread_ctx->problem_logf);
2622 fclose(thread_ctx->problem_logf);
2624 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
2625 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
2626 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
2627 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
2628 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
2629 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
2630 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
2631 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
2632 e2fsck_pass1_free_bitmap(&thread_ctx->block_dup_map);
2633 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
2634 e2fsck_pass1_free_bitmap(&thread_ctx->block_metadata_map);
2635 e2fsck_free_dir_info(thread_ctx);
2636 ext2fs_free_icount(thread_ctx->inode_count);
2637 ext2fs_free_icount(thread_ctx->inode_link_info);
2638 ext2fs_free_mem(&thread_ctx);
2643 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
2644 int num_threads, e2fsck_t global_ctx)
2649 struct e2fsck_thread_info *pinfo;
2651 for (i = 0; i < num_threads; i++) {
2654 if (!pinfo->eti_started)
2657 rc = pthread_join(pinfo->eti_thread_id, NULL);
2659 com_err(global_ctx->program_name, rc,
2660 _("while joining thread\n"));
2664 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
2666 com_err(global_ctx->program_name, rc,
2667 _("while joining pass1 thread\n"));
2677 static void *e2fsck_pass1_thread(void *arg)
2679 struct e2fsck_thread_info *info = arg;
2680 e2fsck_t thread_ctx = info->eti_thread_ctx;
2681 #ifdef DEBUG_THREADS
2682 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
2685 #ifdef DEBUG_THREADS
2686 pthread_mutex_lock(&thread_debug->etd_mutex);
2687 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
2688 pthread_cond_wait(&thread_debug->etd_cond,
2689 &thread_debug->etd_mutex);
2691 pthread_mutex_unlock(&thread_debug->etd_mutex);
2694 #ifdef HAVE_SETJMP_H
2696 * When fatal_error() happens, jump to here. The thread
2697 * context's flags will be saved, but its abort_loc will
2698 * be overwritten by original jump buffer for the later
2701 if (setjmp(thread_ctx->abort_loc)) {
2702 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
2705 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
2708 e2fsck_pass1_run(thread_ctx);
2711 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
2713 _("Scanned group range [%lu, %lu), inodes %lu\n"),
2714 thread_ctx->thread_info.et_group_start,
2715 thread_ctx->thread_info.et_group_end,
2716 thread_ctx->thread_info.et_inode_number);
2718 #ifdef DEBUG_THREADS
2719 pthread_mutex_lock(&thread_debug->etd_mutex);
2720 thread_debug->etd_finished_threads++;
2721 pthread_cond_broadcast(&thread_debug->etd_cond);
2722 pthread_mutex_unlock(&thread_debug->etd_mutex);
2728 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
2729 int num_threads, e2fsck_t global_ctx)
2731 struct e2fsck_thread_info *infos;
2732 pthread_attr_t attr;
2735 struct e2fsck_thread_info *tmp_pinfo;
2737 e2fsck_t thread_ctx;
2738 #ifdef DEBUG_THREADS
2739 struct e2fsck_thread_debug thread_debug =
2740 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
2742 thread_debug.etd_finished_threads = 0;
2745 retval = pthread_attr_init(&attr);
2747 com_err(global_ctx->program_name, retval,
2748 _("while setting pthread attribute\n"));
2752 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
2753 if (infos == NULL) {
2755 com_err(global_ctx->program_name, retval,
2756 _("while allocating memory for threads\n"));
2757 pthread_attr_destroy(&attr);
2761 for (i = 0; i < num_threads; i++) {
2762 tmp_pinfo = &infos[i];
2763 tmp_pinfo->eti_thread_index = i;
2764 #ifdef DEBUG_THREADS
2765 tmp_pinfo->eti_debug = &thread_debug;
2767 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
2770 com_err(global_ctx->program_name, retval,
2771 _("while preparing pass1 thread\n"));
2774 tmp_pinfo->eti_thread_ctx = thread_ctx;
2776 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
2777 &e2fsck_pass1_thread, tmp_pinfo);
2779 com_err(global_ctx->program_name, retval,
2780 _("while creating thread\n"));
2781 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
2785 tmp_pinfo->eti_started = 1;
2788 /* destroy the thread attribute object, since it is no longer needed */
2789 ret = pthread_attr_destroy(&attr);
2791 com_err(global_ctx->program_name, ret,
2792 _("while destroying thread attribute\n"));
2798 e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2805 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
2807 struct e2fsck_thread_info *infos = NULL;
2808 int num_threads = 1;
2811 retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
2813 com_err(global_ctx->program_name, retval,
2814 _("while starting pass1 threads\n"));
2818 retval = e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2820 com_err(global_ctx->program_name, retval,
2821 _("while joining pass1 threads\n"));
2826 global_ctx->flags |= E2F_FLAG_ABORT;
2831 /* TODO: tdb needs to be handled properly for multiple threads*/
2832 static int multiple_threads_supported(e2fsck_t ctx)
2835 unsigned int threshold;
2836 ext2_ino_t num_dirs;
2841 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
2843 profile_get_uint(ctx->profile, "scratch_files",
2844 "numdirs_threshold", 0, 0, &threshold);
2845 profile_get_boolean(ctx->profile, "scratch_files",
2846 "icount", 0, 1, &enable);
2848 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
2850 num_dirs = 1024; /* Guess */
2852 /* tdb is unsupported now */
2853 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
2854 (!threshold || num_dirs > threshold))
2860 void e2fsck_pass1(e2fsck_t ctx)
2863 init_ext2_max_sizes();
2865 if (multiple_threads_supported(ctx)) {
2866 e2fsck_pass1_multithread(ctx);
2869 fprintf(stderr, "Fall through single thread for pass1 "
2870 "because tdb could not handle properly\n");
2872 e2fsck_pass1_run(ctx);
2875 #undef FINISH_INODE_LOOP
2878 * When the inode_scan routines call this callback at the end of the
2879 * glock group, call process_inodes.
2881 static errcode_t scan_callback(ext2_filsys fs,
2882 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2883 dgrp_t group, void * priv_data)
2885 struct scan_callback_struct *scan_struct;
2887 struct e2fsck_thread *tinfo;
2889 scan_struct = (struct scan_callback_struct *) priv_data;
2890 ctx = scan_struct->ctx;
2892 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
2893 scan_struct->inodes_to_process,
2894 scan_struct->process_inode_count);
2897 if ((ctx->progress)(ctx, 1, group+1,
2898 ctx->fs->group_desc_count))
2899 return EXT2_ET_CANCEL_REQUESTED;
2902 if (ctx->global_ctx) {
2903 tinfo = &ctx->thread_info;
2904 tinfo->et_group_next++;
2905 if (ctx->options & E2F_OPT_DEBUG &&
2906 ctx->options & E2F_OPT_MULTITHREAD)
2907 log_out(ctx, _("group %d finished\n"),
2908 tinfo->et_group_next);
2909 if (tinfo->et_group_next >= tinfo->et_group_end)
2910 return EXT2_ET_SCAN_FINISHED;
2918 * Process the inodes in the "inodes to process" list.
2920 static void process_inodes(e2fsck_t ctx, char *block_buf,
2921 struct process_inode_block *inodes_to_process,
2922 int *process_inode_count)
2925 struct ext2_inode *old_stashed_inode;
2926 ext2_ino_t old_stashed_ino;
2927 const char *old_operation;
2929 struct problem_context pctx;
2932 printf("begin process_inodes: ");
2934 if (*process_inode_count == 0)
2936 old_operation = ehandler_operation(0);
2937 old_stashed_inode = ctx->stashed_inode;
2938 old_stashed_ino = ctx->stashed_ino;
2939 qsort(inodes_to_process, *process_inode_count,
2940 sizeof(struct process_inode_block), process_inode_cmp);
2941 clear_problem_context(&pctx);
2942 for (i=0; i < *process_inode_count; i++) {
2943 pctx.inode = ctx->stashed_inode =
2944 (struct ext2_inode *) &inodes_to_process[i].inode;
2945 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2948 printf("%u ", pctx.ino);
2950 sprintf(buf, _("reading indirect blocks of inode %u"),
2952 ehandler_operation(buf);
2953 check_blocks(ctx, &pctx, block_buf,
2954 &inodes_to_process[i].ea_ibody_quota);
2955 if (e2fsck_should_abort(ctx))
2958 ctx->stashed_inode = old_stashed_inode;
2959 ctx->stashed_ino = old_stashed_ino;
2960 *process_inode_count = 0;
2962 printf("end process inodes\n");
2964 ehandler_operation(old_operation);
2967 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2969 const struct process_inode_block *ib_a =
2970 (const struct process_inode_block *) a;
2971 const struct process_inode_block *ib_b =
2972 (const struct process_inode_block *) b;
2975 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2976 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2979 * We only call process_inodes() for non-extent
2980 * inodes, so it's OK to pass NULL to
2981 * ext2fs_file_acl_block() here.
2983 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2984 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2986 ret = ib_a->ino - ib_b->ino;
2991 * Mark an inode as being bad in some what
2993 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2995 struct problem_context pctx;
2997 if (!ctx->inode_bad_map) {
2998 clear_problem_context(&pctx);
3000 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3001 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3002 "inode_bad_map", &ctx->inode_bad_map);
3005 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3006 /* Should never get here */
3007 ctx->flags |= E2F_FLAG_ABORT;
3011 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3014 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
3016 struct problem_context pctx;
3018 if (!ctx->casefolded_dirs) {
3019 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3023 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3024 if (pctx.errcode == 0)
3027 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3028 /* Should never get here */
3029 ctx->flags |= E2F_FLAG_ABORT;
3033 * This procedure will allocate the inode "bb" (badblock) map table
3035 static void alloc_bb_map(e2fsck_t ctx)
3037 struct problem_context pctx;
3039 clear_problem_context(&pctx);
3040 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3041 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3042 "inode_bb_map", &ctx->inode_bb_map);
3045 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3046 /* Should never get here */
3047 ctx->flags |= E2F_FLAG_ABORT;
3053 * This procedure will allocate the inode imagic table
3055 static void alloc_imagic_map(e2fsck_t ctx)
3057 struct problem_context pctx;
3059 clear_problem_context(&pctx);
3060 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3061 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3062 "inode_imagic_map", &ctx->inode_imagic_map);
3065 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3066 /* Should never get here */
3067 ctx->flags |= E2F_FLAG_ABORT;
3073 * Marks a block as in use, setting the dup_map if it's been set
3074 * already. Called by process_block and process_bad_block.
3076 * WARNING: Assumes checks have already been done to make sure block
3077 * is valid. This is true in both process_block and process_bad_block.
3079 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3081 struct problem_context pctx;
3083 clear_problem_context(&pctx);
3085 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
3086 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3087 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3090 if (!ctx->block_dup_map) {
3091 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
3092 _("multiply claimed block map"),
3093 EXT2FS_BMAP64_RBTREE, "block_dup_map",
3094 &ctx->block_dup_map);
3097 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
3099 /* Should never get here */
3100 ctx->flags |= E2F_FLAG_ABORT;
3104 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
3106 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3111 * When cluster size is greater than one block, it is caller's responsibility
3112 * to make sure block parameter starts at a cluster boundary.
3114 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3117 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
3118 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3122 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3123 mark_block_used(ctx, block + i);
3128 * Adjust the extended attribute block's reference counts at the end
3129 * of pass 1, either by subtracting out references for EA blocks that
3130 * are still referenced in ctx->refcount, or by adding references for
3131 * EA blocks that had extra references as accounted for in
3132 * ctx->refcount_extra.
3134 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3135 char *block_buf, int adjust_sign)
3137 struct ext2_ext_attr_header *header;
3138 struct problem_context pctx;
3139 ext2_filsys fs = ctx->fs;
3144 clear_problem_context(&pctx);
3146 ea_refcount_intr_begin(refcount);
3148 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3151 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3154 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3157 header = (struct ext2_ext_attr_header *) block_buf;
3158 pctx.blkcount = header->h_refcount;
3159 should_be = header->h_refcount + adjust_sign * (int)count;
3160 pctx.num = should_be;
3161 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3162 header->h_refcount = should_be;
3163 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
3167 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3176 * Handle processing the extended attribute blocks
3178 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3179 char *block_buf, struct ea_quota *ea_block_quota)
3181 ext2_filsys fs = ctx->fs;
3182 ext2_ino_t ino = pctx->ino;
3183 struct ext2_inode *inode = pctx->inode;
3186 struct ext2_ext_attr_header *header;
3187 struct ext2_ext_attr_entry *first, *entry;
3188 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3189 __u64 quota_inodes = 0;
3190 region_t region = 0;
3191 int failed_csum = 0;
3193 ea_block_quota->blocks = 0;
3194 ea_block_quota->inodes = 0;
3196 blk = ext2fs_file_acl_block(fs, inode);
3201 * If the Extended attribute flag isn't set, then a non-zero
3202 * file acl means that the inode is corrupted.
3204 * Or if the extended attribute block is an invalid block,
3205 * then the inode is also corrupted.
3207 if (!ext2fs_has_feature_xattr(fs->super) ||
3208 (blk < fs->super->s_first_data_block) ||
3209 (blk >= ext2fs_blocks_count(fs->super))) {
3210 mark_inode_bad(ctx, ino);
3214 /* If ea bitmap hasn't been allocated, create it */
3215 if (!ctx->block_ea_map) {
3216 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3217 _("ext attr block map"),
3218 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3219 &ctx->block_ea_map);
3220 if (pctx->errcode) {
3222 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3223 ctx->flags |= E2F_FLAG_ABORT;
3228 /* Create the EA refcount structure if necessary */
3229 if (!ctx->refcount) {
3230 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3231 if (pctx->errcode) {
3233 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3234 ctx->flags |= E2F_FLAG_ABORT;
3240 /* Debugging text */
3241 printf("Inode %u has EA block %u\n", ino, blk);
3244 /* Have we seen this EA block before? */
3245 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3246 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3247 ea_block_quota->inodes = 0;
3249 if (ctx->ea_block_quota_blocks) {
3250 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3253 ea_block_quota->blocks = quota_blocks;
3256 if (ctx->ea_block_quota_inodes)
3257 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3258 &ea_block_quota->inodes);
3260 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3262 /* Ooops, this EA was referenced more than it stated */
3263 if (!ctx->refcount_extra) {
3264 pctx->errcode = ea_refcount_create(0,
3265 &ctx->refcount_extra);
3266 if (pctx->errcode) {
3268 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3269 ctx->flags |= E2F_FLAG_ABORT;
3273 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3278 * OK, we haven't seen this EA block yet. So we need to
3282 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3283 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3286 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3289 if (pctx->errcode &&
3290 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3294 header = (struct ext2_ext_attr_header *) block_buf;
3295 pctx->blk = ext2fs_file_acl_block(fs, inode);
3296 if (((ctx->ext_attr_ver == 1) &&
3297 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3298 ((ctx->ext_attr_ver == 2) &&
3299 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3300 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3304 if (header->h_blocks != 1) {
3305 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3309 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3312 region = region_create(0, fs->blocksize);
3314 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3315 ctx->flags |= E2F_FLAG_ABORT;
3318 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3319 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3323 first = (struct ext2_ext_attr_entry *)(header+1);
3324 end = block_buf + fs->blocksize;
3326 while ((char *)entry < end && *(__u32 *)entry) {
3329 if (region_allocate(region, (char *)entry - (char *)header,
3330 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3331 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3335 if ((ctx->ext_attr_ver == 1 &&
3336 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3337 (ctx->ext_attr_ver == 2 &&
3338 entry->e_name_index == 0)) {
3339 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3343 if (entry->e_value_inum == 0) {
3344 if (entry->e_value_size > EXT2_XATTR_SIZE_MAX ||
3345 (entry->e_value_offs + entry->e_value_size >
3347 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3351 if (entry->e_value_size &&
3352 region_allocate(region, entry->e_value_offs,
3353 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3354 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3359 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3360 entry->e_value_offs);
3362 if (entry->e_hash != hash) {
3363 pctx->num = entry->e_hash;
3364 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3366 entry->e_hash = hash;
3370 blk64_t entry_quota_blocks;
3372 problem = check_large_ea_inode(ctx, entry, pctx,
3373 &entry_quota_blocks);
3374 if (problem && fix_problem(ctx, problem, pctx))
3377 quota_blocks += entry_quota_blocks;
3381 entry = EXT2_EXT_ATTR_NEXT(entry);
3383 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3384 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3387 region_free(region);
3390 * We only get here if there was no other errors that were fixed.
3391 * If there was a checksum fail, ask to correct it.
3394 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3395 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
3401 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3402 if (!ctx->ea_block_quota_blocks) {
3403 pctx->errcode = ea_refcount_create(0,
3404 &ctx->ea_block_quota_blocks);
3405 if (pctx->errcode) {
3410 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3415 if (!ctx->ea_block_quota_inodes) {
3416 pctx->errcode = ea_refcount_create(0,
3417 &ctx->ea_block_quota_inodes);
3418 if (pctx->errcode) {
3421 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3422 ctx->flags |= E2F_FLAG_ABORT;
3427 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3430 ea_block_quota->blocks = quota_blocks;
3431 ea_block_quota->inodes = quota_inodes;
3433 inc_ea_inode_refs(ctx, pctx, first, end);
3434 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3435 mark_block_used(ctx, blk);
3436 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3441 region_free(region);
3442 ext2fs_file_acl_block_set(fs, inode, 0);
3443 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3447 /* Returns 1 if bad htree, 0 if OK */
3448 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3449 ext2_ino_t ino, struct ext2_inode *inode,
3452 struct ext2_dx_root_info *root;
3453 ext2_filsys fs = ctx->fs;
3457 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3458 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3459 (!ext2fs_has_feature_dir_index(fs->super) &&
3460 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3463 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3465 if ((pctx->errcode) ||
3467 (blk < fs->super->s_first_data_block) ||
3468 (blk >= ext2fs_blocks_count(fs->super))) {
3469 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3475 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3476 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3479 /* XXX should check that beginning matches a directory */
3480 root = (struct ext2_dx_root_info *) (block_buf + 24);
3482 if ((root->reserved_zero || root->info_length < 8) &&
3483 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3486 pctx->num = root->hash_version;
3487 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3488 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3489 (root->hash_version != EXT2_HASH_TEA) &&
3490 (root->hash_version != EXT2_HASH_SIPHASH) &&
3491 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3494 if (ext4_hash_in_dirent(inode)) {
3495 if (root->hash_version != EXT2_HASH_SIPHASH &&
3496 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3499 if (root->hash_version == EXT2_HASH_SIPHASH &&
3500 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3504 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3505 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3508 pctx->num = root->indirect_levels;
3509 /* if htree level is clearly too high, consider it to be broken */
3510 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3511 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3514 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3515 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3516 !ext2fs_has_feature_largedir(fs->super)) {
3517 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3518 unsigned idx_pb = 1 << (blockbits - 3);
3520 /* compare inode size/blocks vs. max-sized 2-level htree */
3521 if (EXT2_I_SIZE(pctx->inode) <
3522 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3523 pctx->inode->i_blocks <
3524 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3525 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3529 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3530 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3536 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3537 struct ext2_inode *inode, int restart_flag,
3541 inode->i_links_count = 0;
3542 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3543 inode->i_dtime = ctx->now;
3546 * If a special inode has such rotten block mappings that we
3547 * want to clear the whole inode, be sure to actually zap
3548 * the block maps because i_links_count isn't checked for
3549 * special inodes, and we'll end up right back here the next
3552 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
3553 memset(inode->i_block, 0, sizeof(inode->i_block));
3555 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
3556 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
3557 if (ctx->inode_reg_map)
3558 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
3559 if (ctx->inode_bad_map)
3560 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
3563 * If the inode was partially accounted for before processing
3564 * was aborted, we need to restart the pass 1 scan.
3566 ctx->flags |= restart_flag;
3568 if (ino == EXT2_BAD_INO)
3569 memset(inode, 0, sizeof(struct ext2_inode));
3571 e2fsck_write_inode(ctx, ino, inode, source);
3575 * Use the multiple-blocks reclamation code to fix alignment problems in
3576 * a bigalloc filesystem. We want a logical cluster to map to *only* one
3577 * physical cluster, and we want the block offsets within that cluster to
3580 static int has_unaligned_cluster_map(e2fsck_t ctx,
3581 blk64_t last_pblk, blk64_t last_lblk,
3582 blk64_t pblk, blk64_t lblk)
3584 blk64_t cluster_mask;
3586 if (!ctx->fs->cluster_ratio_bits)
3588 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
3591 * If the block in the logical cluster doesn't align with the block in
3592 * the physical cluster...
3594 if ((lblk & cluster_mask) != (pblk & cluster_mask))
3598 * If we cross a physical cluster boundary within a logical cluster...
3600 if (last_pblk && (lblk & cluster_mask) != 0 &&
3601 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
3602 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
3608 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
3609 struct process_block_struct *pb,
3610 blk64_t start_block, blk64_t end_block,
3612 ext2_extent_handle_t ehandle,
3615 struct ext2fs_extent extent;
3616 blk64_t blk, last_lblk;
3618 int is_dir, is_leaf;
3620 struct ext2_extent_info info;
3621 int failed_csum = 0;
3623 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
3626 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
3629 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
3630 !pb->eti.force_rebuild &&
3631 info.curr_level < MAX_EXTENT_DEPTH_COUNT) {
3632 struct extent_tree_level *etl;
3634 etl = pb->eti.ext_info + info.curr_level;
3635 etl->num_extents += info.num_entries;
3636 etl->max_extents += info.max_entries;
3638 * Implementation wart: Splitting extent blocks when appending
3639 * will leave the old block with one free entry. Therefore
3640 * unless the node is totally full, pretend that a non-root
3641 * extent block can hold one fewer entry than it actually does,
3642 * so that we don't repeatedly rebuild the extent tree.
3644 if (info.curr_level && info.num_entries < info.max_entries)
3648 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
3650 while ((pctx->errcode == 0 ||
3651 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
3652 info.num_entries-- > 0) {
3653 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
3654 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
3655 last_lblk = extent.e_lblk + extent.e_len - 1;
3658 pctx->blk = extent.e_pblk;
3659 pctx->blk2 = extent.e_lblk;
3660 pctx->num = extent.e_len;
3661 pctx->blkcount = extent.e_lblk + extent.e_len;
3663 if (extent.e_pblk == 0 ||
3664 extent.e_pblk < ctx->fs->super->s_first_data_block ||
3665 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
3666 problem = PR_1_EXTENT_BAD_START_BLK;
3667 else if (extent.e_lblk < start_block)
3668 problem = PR_1_OUT_OF_ORDER_EXTENTS;
3669 else if ((end_block && last_lblk > end_block) &&
3670 !(last_lblk > eof_block &&
3671 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
3672 (pctx->inode->i_flags & EXT4_VERITY_FL))))
3673 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
3674 else if (is_leaf && extent.e_len == 0)
3675 problem = PR_1_EXTENT_LENGTH_ZERO;
3677 (extent.e_pblk + extent.e_len) >
3678 ext2fs_blocks_count(ctx->fs->super))
3679 problem = PR_1_EXTENT_ENDS_BEYOND;
3680 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
3681 !ext2fs_has_feature_largedir(ctx->fs->super) &&
3682 ((extent.e_lblk + extent.e_len) >
3683 (1U << (21 - ctx->fs->super->s_log_block_size))))
3684 problem = PR_1_TOOBIG_DIR;
3686 if (is_leaf && problem == 0 && extent.e_len > 0) {
3688 printf("extent_region(ino=%u, expect=%llu, "
3689 "lblk=%llu, len=%u)\n", pb->ino,
3690 (unsigned long long) pb->next_lblock,
3691 (unsigned long long) extent.e_lblk,
3694 if (extent.e_lblk < pb->next_lblock)
3695 problem = PR_1_EXTENT_COLLISION;
3696 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
3697 pb->next_lblock = extent.e_lblk + extent.e_len;
3701 * Uninitialized blocks in a directory? Clear the flag and
3702 * we'll interpret the blocks later.
3704 if (try_repairs && is_dir && problem == 0 &&
3705 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3706 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
3707 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3708 pb->inode_modified = 1;
3709 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3715 #ifdef CONFIG_DEVELOPER_FEATURES
3716 if (try_repairs && !is_dir && problem == 0 &&
3717 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
3718 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3719 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
3720 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3721 pb->inode_modified = 1;
3722 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3729 if (try_repairs && problem) {
3731 if (fix_problem(ctx, problem, pctx)) {
3732 if (ctx->invalid_bitmaps) {
3734 * If fsck knows the bitmaps are bad,
3735 * skip to the next extent and
3736 * try to clear this extent again
3737 * after fixing the bitmaps, by
3740 pctx->errcode = ext2fs_extent_get(
3742 EXT2_EXTENT_NEXT_SIB,
3744 ctx->flags |= E2F_FLAG_RESTART_LATER;
3745 if (pctx->errcode ==
3746 EXT2_ET_NO_CURRENT_NODE) {
3752 e2fsck_read_bitmaps(ctx);
3753 pb->inode_modified = 1;
3755 ext2fs_extent_delete(ehandle, 0);
3756 if (pctx->errcode) {
3757 pctx->str = "ext2fs_extent_delete";
3760 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3761 if (pctx->errcode &&
3762 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
3763 pctx->str = "ext2fs_extent_fix_parents";
3766 pctx->errcode = ext2fs_extent_get(ehandle,
3767 EXT2_EXTENT_CURRENT,
3769 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
3780 blk64_t lblk = extent.e_lblk;
3781 int next_try_repairs = 1;
3783 blk = extent.e_pblk;
3786 * If this lower extent block collides with critical
3787 * metadata, don't try to repair the damage. Pass 1b
3788 * will reallocate the block; then we can try again.
3790 if (pb->ino != EXT2_RESIZE_INO &&
3791 extent.e_pblk < ctx->fs->super->s_blocks_count &&
3792 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3794 next_try_repairs = 0;
3797 PR_1_CRITICAL_METADATA_COLLISION,
3799 if ((ctx->options & E2F_OPT_NO) == 0)
3800 ctx->flags |= E2F_FLAG_RESTART_LATER;
3802 pctx->errcode = ext2fs_extent_get(ehandle,
3803 EXT2_EXTENT_DOWN, &extent);
3804 if (pctx->errcode &&
3805 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
3806 pctx->str = "EXT2_EXTENT_DOWN";
3807 problem = PR_1_EXTENT_HEADER_INVALID;
3808 if (!next_try_repairs)
3810 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
3811 goto report_problem;
3814 /* The next extent should match this index's logical start */
3815 if (extent.e_lblk != lblk) {
3816 struct ext2_extent_info e_info;
3818 pctx->errcode = ext2fs_extent_get_info(ehandle,
3820 if (pctx->errcode) {
3821 pctx->str = "ext2fs_extent_get_info";
3825 pctx->blk2 = extent.e_lblk;
3826 pctx->num = e_info.curr_level - 1;
3827 problem = PR_1_EXTENT_INDEX_START_INVALID;
3828 if (fix_problem(ctx, problem, pctx)) {
3829 pb->inode_modified = 1;
3831 ext2fs_extent_fix_parents(ehandle);
3832 if (pctx->errcode) {
3833 pctx->str = "ext2fs_extent_fix_parents";
3838 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
3839 last_lblk, eof_block, ehandle,
3843 pctx->errcode = ext2fs_extent_get(ehandle,
3844 EXT2_EXTENT_UP, &extent);
3845 if (pctx->errcode) {
3846 pctx->str = "EXT2_EXTENT_UP";
3849 mark_block_used(ctx, blk);
3854 if ((pb->previous_block != 0) &&
3855 (pb->previous_block+1 != extent.e_pblk)) {
3856 if (ctx->options & E2F_OPT_FRAGCHECK) {
3861 else if (pb->is_reg)
3864 printf(("%6lu(%c): expecting %6lu "
3866 "phys %6lu log %lu len %lu\n"),
3867 (unsigned long) pctx->ino, type,
3868 (unsigned long) pb->previous_block+1,
3869 (unsigned long) extent.e_pblk,
3870 (unsigned long) extent.e_lblk,
3871 (unsigned long) extent.e_len);
3876 * If we notice a gap in the logical block mappings of an
3877 * extent-mapped directory, offer to close the hole by
3878 * moving the logical block down, otherwise we'll go mad in
3879 * pass 3 allocating empty directory blocks to fill the hole.
3881 if (try_repairs && is_dir &&
3882 pb->last_block + 1 < extent.e_lblk) {
3885 new_lblk = pb->last_block + 1;
3886 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3887 new_lblk = ((new_lblk +
3888 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3889 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3891 EXT2FS_CLUSTER_MASK(ctx->fs));
3892 pctx->blk = extent.e_lblk;
3893 pctx->blk2 = new_lblk;
3894 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3895 extent.e_lblk = new_lblk;
3896 pb->inode_modified = 1;
3897 pctx->errcode = ext2fs_extent_replace(ehandle,
3899 if (pctx->errcode) {
3903 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3905 goto failed_add_dir_block;
3906 pctx->errcode = ext2fs_extent_goto(ehandle,
3909 goto failed_add_dir_block;
3910 last_lblk = extent.e_lblk + extent.e_len - 1;
3916 while (++pb->last_db_block <
3917 (e2_blkcnt_t) extent.e_lblk) {
3918 pctx->errcode = ext2fs_add_dir_block2(
3922 if (pctx->errcode) {
3924 pctx->num = pb->last_db_block;
3925 goto failed_add_dir_block;
3929 for (i = 0; i < extent.e_len; i++) {
3930 pctx->errcode = ext2fs_add_dir_block2(
3935 if (pctx->errcode) {
3936 pctx->blk = extent.e_pblk + i;
3937 pctx->num = extent.e_lblk + i;
3938 failed_add_dir_block:
3939 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3940 /* Should never get here */
3941 ctx->flags |= E2F_FLAG_ABORT;
3945 if (extent.e_len > 0)
3946 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3948 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3952 for (i = 0; i < extent.e_len; i++) {
3953 pctx->blk = extent.e_lblk + i;
3954 pctx->blk2 = extent.e_pblk + i;
3955 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3956 mark_block_used(ctx, extent.e_pblk + i);
3957 mark_block_used(ctx, extent.e_pblk + i);
3962 * Check whether first cluster got marked in previous iteration.
3964 if (ctx->fs->cluster_ratio_bits &&
3965 pb->previous_block &&
3966 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3967 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3968 /* Set blk to the beginning of next cluster. */
3971 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3973 /* Set blk to the beginning of current cluster. */
3974 blk = EXT2FS_C2B(ctx->fs,
3975 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3977 if (blk < extent.e_pblk + extent.e_len) {
3978 mark_blocks_used(ctx, blk,
3979 extent.e_pblk + extent.e_len - blk);
3980 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3981 EXT2FS_CLUSTER_RATIO(ctx->fs));
3982 pb->num_blocks += n;
3984 pb->last_block = extent.e_lblk + extent.e_len - 1;
3985 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3986 start_block = pb->last_block = last_lblk;
3987 if (is_leaf && !is_dir &&
3988 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3989 pb->last_init_lblock = last_lblk;
3991 pctx->errcode = ext2fs_extent_get(ehandle,
3992 EXT2_EXTENT_NEXT_SIB,
3996 /* Failed csum but passes checks? Ask to fix checksum. */
3998 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3999 pb->inode_modified = 1;
4000 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4005 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4009 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4010 struct process_block_struct *pb)
4012 struct ext2_extent_info info;
4013 struct ext2_inode *inode = pctx->inode;
4014 ext2_extent_handle_t ehandle;
4015 ext2_filsys fs = ctx->fs;
4016 ext2_ino_t ino = pctx->ino;
4019 struct ext3_extent_header *eh;
4021 /* Check for a proper extent header... */
4022 eh = (struct ext3_extent_header *) &inode->i_block[0];
4023 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4025 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4026 e2fsck_clear_inode(ctx, ino, inode, 0,
4027 "check_blocks_extents");
4032 /* ...since this function doesn't fail if i_block is zeroed. */
4033 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4034 if (pctx->errcode) {
4035 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4036 e2fsck_clear_inode(ctx, ino, inode, 0,
4037 "check_blocks_extents");
4042 retval = ext2fs_extent_get_info(ehandle, &info);
4044 int max_depth = info.max_depth;
4046 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4047 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4048 ctx->extent_depth_count[max_depth]++;
4051 /* Check maximum extent depth */
4052 pctx->blk = info.max_depth;
4053 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4054 if (pctx->blk2 < pctx->blk &&
4055 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4056 pb->eti.force_rebuild = 1;
4058 /* Can we collect extent tree level stats? */
4059 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4060 if (pctx->blk2 > pctx->blk)
4061 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4062 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4063 pb->eti.ino = pb->ino;
4065 pb->next_lblock = 0;
4067 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4068 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4069 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4070 if (pctx->errcode &&
4071 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4073 inode->i_blocks = 0;
4074 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4075 "check_blocks_extents");
4078 ext2fs_extent_free(ehandle);
4080 /* Rebuild unless it's a dir and we're rehashing it */
4081 if (LINUX_S_ISDIR(inode->i_mode) &&
4082 e2fsck_dir_will_be_rehashed(ctx, ino))
4085 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4086 e2fsck_rebuild_extents_later(ctx, ino);
4088 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4092 * In fact we don't need to check blocks for an inode with inline data
4093 * because this inode doesn't have any blocks. In this function all
4094 * we need to do is add this inode into dblist when it is a directory.
4096 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4097 struct process_block_struct *pb)
4100 size_t inline_data_size = 0;
4107 /* Process the dirents in i_block[] as the "first" block. */
4108 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4112 /* Process the dirents in the EA as a "second" block. */
4113 flags = ctx->fs->flags;
4114 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4115 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4117 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4118 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4119 if (pctx->errcode) {
4124 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4127 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4135 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4136 ctx->flags |= E2F_FLAG_ABORT;
4140 * This subroutine is called on each inode to account for all of the
4141 * blocks used by that inode.
4143 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4144 char *block_buf, const struct ea_quota *ea_ibody_quota)
4146 ext2_filsys fs = ctx->fs;
4147 struct process_block_struct pb;
4148 ext2_ino_t ino = pctx->ino;
4149 struct ext2_inode *inode = pctx->inode;
4150 unsigned bad_size = 0;
4151 int dirty_inode = 0;
4155 struct ea_quota ea_block_quota;
4158 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4159 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4161 pb.last_init_lblock = -1;
4162 pb.last_db_block = -1;
4163 pb.num_illegal_blocks = 0;
4164 pb.suppress = 0; pb.clear = 0;
4167 pb.previous_block = 0;
4168 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4169 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4170 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4174 pb.inode_modified = 0;
4175 pb.eti.force_rebuild = 0;
4179 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4180 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4182 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4183 if (e2fsck_should_abort(ctx))
4185 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4188 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4189 check_blocks_inline_data(ctx, pctx, &pb);
4190 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4191 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4192 check_blocks_extents(ctx, pctx, &pb);
4196 * If we've modified the inode, write it out before
4197 * iterate() tries to use it.
4200 e2fsck_write_inode(ctx, ino, inode,
4205 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4206 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4207 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4208 block_buf, process_block, &pb);
4210 * We do not have uninitialized extents in non extent
4213 pb.last_init_lblock = pb.last_block;
4215 * If iterate() changed a block mapping, we have to
4216 * re-read the inode. If we decide to clear the
4217 * inode after clearing some stuff, we'll re-write the
4218 * bad mappings into the inode!
4220 if (pb.inode_modified)
4221 e2fsck_read_inode(ctx, ino, inode,
4223 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4224 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4226 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4228 printf("bmap rebuild ino=%d\n", ino);
4230 if (!LINUX_S_ISDIR(inode->i_mode) ||
4231 !e2fsck_dir_will_be_rehashed(ctx, ino))
4232 e2fsck_rebuild_extents_later(ctx, ino);
4236 end_problem_latch(ctx, PR_LATCH_BLOCK);
4237 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4238 if (e2fsck_should_abort(ctx))
4241 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4243 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4244 if (LINUX_S_ISDIR(inode->i_mode))
4245 ctx->fs_fragmented_dir++;
4247 ctx->fs_fragmented++;
4251 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4256 if (inode->i_flags & EXT2_INDEX_FL) {
4257 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4258 inode->i_flags &= ~EXT2_INDEX_FL;
4261 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4265 if (!pb.num_blocks && pb.is_dir &&
4266 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4267 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4268 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4269 ctx->fs_directory_count--;
4274 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4275 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4276 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4277 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4279 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4280 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4281 ino, (ea_ibody_quota ?
4282 ea_ibody_quota->inodes : 0) +
4283 ea_block_quota.inodes + 1);
4286 if (!ext2fs_has_feature_huge_file(fs->super) ||
4287 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4288 pb.num_blocks *= (fs->blocksize / 512);
4289 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4291 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4292 ino, inode->i_size, (unsigned long long) pb.last_block,
4293 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4294 (unsigned long long) pb.num_blocks);
4296 size = EXT2_I_SIZE(inode);
4298 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4299 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4304 flags = ctx->fs->flags;
4305 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4306 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4308 ctx->fs->flags = (flags &
4309 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4311 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4312 if (err || sz != size) {
4316 } else if (size & (fs->blocksize - 1))
4318 else if (nblock > (pb.last_block + 1))
4320 else if (nblock < (pb.last_block + 1)) {
4321 if (((pb.last_block + 1) - nblock) >
4322 fs->super->s_prealloc_dir_blocks)
4326 if ((pb.last_init_lblock >= 0) &&
4327 /* Do not allow initialized allocated blocks past i_size*/
4328 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4329 !(inode->i_flags & EXT4_VERITY_FL))
4331 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4332 size > ext2_max_sizes[fs->super->s_log_block_size])
4333 /* too big for a direct/indirect-mapped file */
4335 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4337 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4338 /* too big for an extent-based file - 32bit ee_block */
4341 /* i_size for symlinks is checked elsewhere */
4342 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4343 /* Did inline_data set pctx->num earlier? */
4345 pctx->num = (pb.last_block + 1) * fs->blocksize;
4346 pctx->group = bad_size;
4347 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4348 ext2fs_inode_size_set(fs, inode, pctx->num);
4349 if (EXT2_I_SIZE(inode) == 0 &&
4350 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4351 memset(inode->i_block, 0,
4352 sizeof(inode->i_block));
4353 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4359 if (LINUX_S_ISREG(inode->i_mode) &&
4360 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4362 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4363 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4364 (ext2fs_has_feature_huge_file(fs->super) &&
4365 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4366 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4367 pctx->num = pb.num_blocks;
4368 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4369 inode->i_blocks = pb.num_blocks;
4370 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4377 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4378 * a block mapped file, so rebuild it as an extent file. We can skip
4379 * symlinks because they're never rewritten.
4381 if (ext2fs_has_feature_bigalloc(fs->super) &&
4382 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4383 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4384 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4385 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4386 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4387 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4392 if (ctx->dirs_to_hash && pb.is_dir &&
4393 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4394 !(inode->i_flags & EXT2_INDEX_FL) &&
4395 ((inode->i_size / fs->blocksize) >= 3))
4396 e2fsck_rehash_dir_later(ctx, ino);
4400 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4405 * Helper function called by process block when an illegal block is
4406 * found. It returns a description about why the block is illegal
4408 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4412 static char problem[80];
4414 super = fs->super->s_first_data_block;
4415 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4416 if (block < super) {
4417 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4419 } else if (block >= ext2fs_blocks_count(fs->super)) {
4420 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4423 for (i = 0; i < fs->group_desc_count; i++) {
4424 if (block == super) {
4425 sprintf(problem, "is the superblock in group %d", i);
4428 if (block > super &&
4429 block <= (super + fs->desc_blocks)) {
4430 sprintf(problem, "is in the group descriptors "
4434 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4435 sprintf(problem, "is the block bitmap of group %d", i);
4438 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4439 sprintf(problem, "is the inode bitmap of group %d", i);
4442 if (block >= ext2fs_inode_table_loc(fs, i) &&
4443 (block < ext2fs_inode_table_loc(fs, i)
4444 + fs->inode_blocks_per_group)) {
4445 sprintf(problem, "is in the inode table of group %d",
4449 super += fs->super->s_blocks_per_group;
4456 * This is a helper function for check_blocks().
4458 static int process_block(ext2_filsys fs,
4460 e2_blkcnt_t blockcnt,
4461 blk64_t ref_block EXT2FS_ATTR((unused)),
4462 int ref_offset EXT2FS_ATTR((unused)),
4465 struct process_block_struct *p;
4466 struct problem_context *pctx;
4467 blk64_t blk = *block_nr;
4469 problem_t problem = 0;
4472 p = (struct process_block_struct *) priv_data;
4477 * For a directory, add logical block zero for processing even if it's
4478 * not mapped or we'll be perennially stuck with broken "." and ".."
4481 if (p->is_dir && blockcnt == 0 && blk == 0) {
4482 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4483 if (pctx->errcode) {
4485 pctx->num = blockcnt;
4486 goto failed_add_dir_block;
4495 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4500 * Simplistic fragmentation check. We merely require that the
4501 * file be contiguous. (Which can never be true for really
4502 * big files that are greater than a block group.)
4504 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4505 if (p->previous_block+1 != blk) {
4506 if (ctx->options & E2F_OPT_FRAGCHECK) {
4514 printf(_("%6lu(%c): expecting %6lu "
4515 "got phys %6lu (blkcnt %lld)\n"),
4516 (unsigned long) pctx->ino, type,
4517 (unsigned long) p->previous_block+1,
4518 (unsigned long) blk,
4519 (long long) blockcnt);
4525 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4526 !pctx->inode->i_size_high &&
4527 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4528 problem = PR_1_TOOBIG_DIR;
4529 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4530 problem = PR_1_TOOBIG_DIR;
4531 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4532 problem = PR_1_TOOBIG_REG;
4533 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4534 problem = PR_1_TOOBIG_SYMLINK;
4536 if (blk < fs->super->s_first_data_block ||
4537 blk >= ext2fs_blocks_count(fs->super))
4538 problem = PR_1_ILLEGAL_BLOCK_NUM;
4541 * If this IND/DIND/TIND block is squatting atop some critical metadata
4542 * (group descriptors, superblock, bitmap, inode table), any write to
4543 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
4544 * fix that and restart fsck.
4547 p->ino != EXT2_RESIZE_INO &&
4548 blk < ctx->fs->super->s_blocks_count &&
4549 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
4551 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
4552 if ((ctx->options & E2F_OPT_NO) == 0)
4553 ctx->flags |= E2F_FLAG_RESTART_LATER;
4557 p->num_illegal_blocks++;
4559 * A bit of subterfuge here -- we're trying to fix a block
4560 * mapping, but the IND/DIND/TIND block could have collided
4561 * with some critical metadata. So, fix the in-core mapping so
4562 * iterate won't go insane, but return 0 instead of
4563 * BLOCK_CHANGED so that it won't write the remapping out to
4564 * our multiply linked block.
4566 * Even if we previously determined that an *IND block
4567 * conflicts with critical metadata, we must still try to
4568 * iterate the *IND block as if it is an *IND block to find and
4569 * mark the blocks it points to. Better to be overly cautious
4570 * with the used_blocks map so that we don't move the *IND
4571 * block to a block that's really in use!
4573 if (p->ino != EXT2_RESIZE_INO &&
4575 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4580 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
4581 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
4585 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
4587 set_latch_flags(PR_LATCH_BLOCK,
4592 pctx->blkcount = blockcnt;
4593 if (fix_problem(ctx, problem, pctx)) {
4594 blk = *block_nr = 0;
4595 ret_code = BLOCK_CHANGED;
4596 p->inode_modified = 1;
4598 * If the directory block is too big and is beyond the
4599 * end of the FS, don't bother trying to add it for
4600 * processing -- the kernel would never have created a
4601 * directory this large, and we risk an ENOMEM abort.
4602 * In any case, the toobig handler for extent-based
4603 * directories also doesn't feed toobig blocks to
4606 if (problem == PR_1_TOOBIG_DIR)
4613 if (p->ino == EXT2_RESIZE_INO) {
4615 * The resize inode has already be sanity checked
4616 * during pass #0 (the superblock checks). All we
4617 * have to do is mark the double indirect block as
4618 * being in use; all of the other blocks are handled
4619 * by mark_table_blocks()).
4621 if (blockcnt == BLOCK_COUNT_DIND)
4622 mark_block_used(ctx, blk);
4624 } else if (!(ctx->fs->cluster_ratio_bits &&
4625 p->previous_block &&
4626 (EXT2FS_B2C(ctx->fs, blk) ==
4627 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
4628 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
4629 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
4630 mark_block_used(ctx, blk);
4632 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
4633 p->last_block, blk, blockcnt)) {
4634 pctx->blk = blockcnt;
4636 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4637 mark_block_used(ctx, blk);
4638 mark_block_used(ctx, blk);
4641 p->last_block = blockcnt;
4642 p->previous_block = blk;
4644 if (p->is_dir && (blockcnt >= 0)) {
4645 while (++p->last_db_block < blockcnt) {
4646 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
4649 if (pctx->errcode) {
4651 pctx->num = p->last_db_block;
4652 goto failed_add_dir_block;
4655 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
4657 if (pctx->errcode) {
4659 pctx->num = blockcnt;
4660 failed_add_dir_block:
4661 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4662 /* Should never get here */
4663 ctx->flags |= E2F_FLAG_ABORT;
4670 static int process_bad_block(ext2_filsys fs,
4672 e2_blkcnt_t blockcnt,
4673 blk64_t ref_block EXT2FS_ATTR((unused)),
4674 int ref_offset EXT2FS_ATTR((unused)),
4677 struct process_block_struct *p;
4678 blk64_t blk = *block_nr;
4679 blk64_t first_block;
4681 struct problem_context *pctx;
4687 p = (struct process_block_struct *) priv_data;
4691 pctx->ino = EXT2_BAD_INO;
4693 pctx->blkcount = blockcnt;
4695 if ((blk < fs->super->s_first_data_block) ||
4696 (blk >= ext2fs_blocks_count(fs->super))) {
4697 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
4699 return BLOCK_CHANGED;
4705 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
4707 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
4709 return BLOCK_CHANGED;
4711 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4714 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
4717 return BLOCK_CHANGED;
4719 if (e2fsck_should_abort(ctx))
4722 mark_block_used(ctx, blk);
4726 printf ("DEBUG: Marking %u as bad.\n", blk);
4728 ctx->fs_badblocks_count++;
4730 * If the block is not used, then mark it as used and return.
4731 * If it is already marked as found, this must mean that
4732 * there's an overlap between the filesystem table blocks
4733 * (bitmaps and inode table) and the bad block list.
4735 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
4736 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4740 * Try to find the where the filesystem block was used...
4742 first_block = fs->super->s_first_data_block;
4744 for (i = 0; i < fs->group_desc_count; i++ ) {
4747 if (!ext2fs_bg_has_super(fs, i))
4749 if (blk == first_block) {
4751 if (fix_problem(ctx,
4752 PR_1_BAD_PRIMARY_SUPERBLOCK,
4755 return BLOCK_CHANGED;
4759 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
4762 if ((blk > first_block) &&
4763 (blk <= first_block + fs->desc_blocks)) {
4765 pctx->blk = *block_nr;
4766 if (fix_problem(ctx,
4767 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
4769 return BLOCK_CHANGED;
4773 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
4777 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
4778 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
4779 ctx->invalid_block_bitmap_flag[i]++;
4780 ctx->invalid_bitmaps++;
4784 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
4785 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
4786 ctx->invalid_inode_bitmap_flag[i]++;
4787 ctx->invalid_bitmaps++;
4791 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
4792 (blk < (ext2fs_inode_table_loc(fs, i) +
4793 fs->inode_blocks_per_group))) {
4795 * If there are bad blocks in the inode table,
4796 * the inode scan code will try to do
4797 * something reasonable automatically.
4801 first_block += fs->super->s_blocks_per_group;
4804 * If we've gotten to this point, then the only
4805 * possibility is that the bad block inode meta data
4806 * is using a bad block.
4808 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
4809 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
4810 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
4812 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
4814 return BLOCK_CHANGED;
4816 if (e2fsck_should_abort(ctx))
4823 /* Warn user that the block wasn't claimed */
4824 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
4829 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
4830 const char *name, int num, blk64_t *new_block)
4832 ext2_filsys fs = ctx->fs;
4834 blk64_t old_block = *new_block;
4837 unsigned flexbg_size;
4840 struct problem_context pctx;
4842 clear_problem_context(&pctx);
4845 pctx.blk = old_block;
4849 * For flex_bg filesystems, first try to allocate the metadata
4850 * within the flex_bg, and if that fails then try finding the
4851 * space anywhere in the filesystem.
4853 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
4855 flexbg_size = 1U << fs->super->s_log_groups_per_flex;
4856 flexbg = group / flexbg_size;
4857 first_block = ext2fs_group_first_block2(fs,
4858 flexbg_size * flexbg);
4859 last_grp = group | (flexbg_size - 1);
4860 if (last_grp >= fs->group_desc_count)
4861 last_grp = fs->group_desc_count - 1;
4862 last_block = ext2fs_group_last_block2(fs, last_grp);
4864 last_block = ext2fs_group_last_block2(fs, group);
4865 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
4866 num, ctx->block_found_map,
4868 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
4869 pctx.errcode = ext2fs_get_free_blocks2(fs,
4870 fs->super->s_first_data_block,
4871 ext2fs_blocks_count(fs->super),
4872 num, ctx->block_found_map, new_block);
4875 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
4876 ext2fs_unmark_valid(fs);
4877 ctx->flags |= E2F_FLAG_ABORT;
4880 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4882 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4883 ext2fs_unmark_valid(fs);
4884 ctx->flags |= E2F_FLAG_ABORT;
4887 ext2fs_mark_super_dirty(fs);
4888 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4889 pctx.blk2 = *new_block;
4890 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4891 PR_1_RELOC_TO), &pctx);
4893 for (i = 0; i < num; i++) {
4895 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4897 pctx.errcode = io_channel_read_blk64(fs->io,
4898 old_block + i, 1, buf);
4900 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4901 pctx.blk = (*new_block) + i;
4902 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4905 pctx.blk = (*new_block) + i;
4906 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4911 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4913 ext2fs_free_mem(&buf);
4917 * This routine gets called at the end of pass 1 if bad blocks are
4918 * detected in the superblock, group descriptors, inode_bitmaps, or
4919 * block bitmaps. At this point, all of the blocks have been mapped
4920 * out, so we can try to allocate new block(s) to replace the bad
4923 static void handle_fs_bad_blocks(e2fsck_t ctx)
4925 ext2_filsys fs = ctx->fs;
4927 blk64_t first_block;
4930 for (i = 0; i < fs->group_desc_count; i++) {
4931 first_block = ext2fs_group_first_block2(fs, i);
4933 if (ctx->invalid_block_bitmap_flag[i]) {
4934 new_blk = ext2fs_block_bitmap_loc(fs, i);
4935 new_table_block(ctx, first_block, i, _("block bitmap"),
4937 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4939 if (ctx->invalid_inode_bitmap_flag[i]) {
4940 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4941 new_table_block(ctx, first_block, i, _("inode bitmap"),
4943 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4945 if (ctx->invalid_inode_table_flag[i]) {
4946 new_blk = ext2fs_inode_table_loc(fs, i);
4947 new_table_block(ctx, first_block, i, _("inode table"),
4948 fs->inode_blocks_per_group,
4950 ext2fs_inode_table_loc_set(fs, i, new_blk);
4951 ctx->flags |= E2F_FLAG_RESTART;
4954 ctx->invalid_bitmaps = 0;
4958 * This routine marks all blocks which are used by the superblock,
4959 * group descriptors, inode bitmaps, and block bitmaps.
4961 static void mark_table_blocks(e2fsck_t ctx)
4963 ext2_filsys fs = ctx->fs;
4967 struct problem_context pctx;
4969 clear_problem_context(&pctx);
4971 for (i = 0; i < fs->group_desc_count; i++) {
4974 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4975 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4978 * Mark the blocks used for the inode table
4980 if (ext2fs_inode_table_loc(fs, i)) {
4981 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4982 j < fs->inode_blocks_per_group;
4984 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4987 if (!ctx->invalid_inode_table_flag[i] &&
4989 PR_1_ITABLE_CONFLICT, &pctx)) {
4990 ctx->invalid_inode_table_flag[i]++;
4991 ctx->invalid_bitmaps++;
4994 ext2fs_mark_block_bitmap2(
4995 ctx->block_found_map, b);
4996 ext2fs_mark_block_bitmap2(
4997 ctx->block_metadata_map, b);
5003 * Mark block used for the block bitmap
5005 if (ext2fs_block_bitmap_loc(fs, i)) {
5006 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5007 ext2fs_block_bitmap_loc(fs, i))) {
5008 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5009 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5010 ctx->invalid_block_bitmap_flag[i]++;
5011 ctx->invalid_bitmaps++;
5014 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5015 ext2fs_block_bitmap_loc(fs, i));
5016 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5017 ext2fs_block_bitmap_loc(fs, i));
5021 * Mark block used for the inode bitmap
5023 if (ext2fs_inode_bitmap_loc(fs, i)) {
5024 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5025 ext2fs_inode_bitmap_loc(fs, i))) {
5026 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5027 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5028 ctx->invalid_inode_bitmap_flag[i]++;
5029 ctx->invalid_bitmaps++;
5032 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5033 ext2fs_inode_bitmap_loc(fs, i));
5034 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5035 ext2fs_inode_bitmap_loc(fs, i));
5042 * These subroutines short circuits ext2fs_get_blocks and
5043 * ext2fs_check_directory; we use them since we already have the inode
5044 * structure, so there's no point in letting the ext2fs library read
5047 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5050 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5053 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5054 return EXT2_ET_CALLBACK_NOTHANDLED;
5056 for (i=0; i < EXT2_N_BLOCKS; i++)
5057 blocks[i] = ctx->stashed_inode->i_block[i];
5061 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5062 struct ext2_inode *inode)
5064 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5066 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5067 return EXT2_ET_CALLBACK_NOTHANDLED;
5068 *inode = *ctx->stashed_inode;
5072 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5073 struct ext2_inode *inode)
5075 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5077 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5078 (inode != ctx->stashed_inode))
5079 *ctx->stashed_inode = *inode;
5080 return EXT2_ET_CALLBACK_NOTHANDLED;
5083 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5085 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5087 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5088 return EXT2_ET_CALLBACK_NOTHANDLED;
5090 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5091 return EXT2_ET_NO_DIRECTORY;
5095 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5098 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5102 if (ctx->block_found_map) {
5103 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5107 if (fs->block_map) {
5108 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5109 ext2fs_mark_bb_dirty(fs);
5112 if (!fs->block_map) {
5113 retval = ext2fs_read_block_bitmap(fs);
5118 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5127 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5128 blk64_t len, blk64_t *pblk, blk64_t *plen)
5130 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5133 if (ctx->block_found_map)
5134 return ext2fs_new_range(fs, flags, goal, len,
5135 ctx->block_found_map, pblk, plen);
5137 if (!fs->block_map) {
5138 retval = ext2fs_read_block_bitmap(fs);
5143 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5147 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5149 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5151 /* Never free a critical metadata block */
5152 if (ctx->block_found_map &&
5153 ctx->block_metadata_map &&
5155 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5158 if (ctx->block_found_map) {
5160 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5162 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5166 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5167 blk_t num, int inuse)
5169 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5171 /* Never free a critical metadata block */
5172 if (ctx->block_found_map &&
5173 ctx->block_metadata_map &&
5175 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5178 if (ctx->block_found_map) {
5180 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5183 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5188 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5190 ext2_filsys fs = ctx->fs;
5192 if (use_shortcuts) {
5193 fs->get_blocks = pass1_get_blocks;
5194 fs->check_directory = pass1_check_directory;
5195 fs->read_inode = pass1_read_inode;
5196 fs->write_inode = pass1_write_inode;
5197 ctx->stashed_ino = 0;
5200 fs->check_directory = 0;
5202 fs->write_inode = 0;
5206 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5208 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5209 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5210 e2fsck_block_alloc_stats, 0);
5211 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5212 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5213 e2fsck_block_alloc_stats_range, NULL);