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 blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
29 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * Pass 1 is designed to stash away enough information so that the
32 * other passes should not need to read in the inode information
33 * during the normal course of a filesystem check. (Although if an
34 * inconsistency is detected, other passes may need to read in an
37 * Note that pass 1B will be invoked if there are any duplicate blocks
41 #define _GNU_SOURCE 1 /* get strnlen() */
50 #include <ext2fs/ext2_ext_attr.h>
54 #ifdef NO_INLINE_FUNCS
57 #define _INLINE_ inline
67 static int process_block(ext2_filsys fs, blk64_t *blocknr,
68 e2_blkcnt_t blockcnt, blk64_t ref_blk,
69 int ref_offset, void *priv_data);
70 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
71 e2_blkcnt_t blockcnt, blk64_t ref_blk,
72 int ref_offset, void *priv_data);
73 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
75 const struct ea_quota *ea_ibody_quota);
76 static void mark_table_blocks(e2fsck_t ctx);
77 static void alloc_bb_map(e2fsck_t ctx);
78 static void alloc_imagic_map(e2fsck_t ctx);
79 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
80 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino);
81 static void handle_fs_bad_blocks(e2fsck_t ctx);
82 static void process_inodes(e2fsck_t ctx, char *block_buf);
83 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
84 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
85 dgrp_t group, void * priv_data);
86 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
87 char *block_buf, int adjust_sign);
88 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
90 struct process_block_struct {
92 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
93 fragmented:1, compressed:1, bbcheck:1,
98 e2_blkcnt_t last_init_lblock;
99 e2_blkcnt_t last_db_block;
100 int num_illegal_blocks;
101 blk64_t previous_block;
102 struct ext2_inode *inode;
103 struct problem_context *pctx;
104 ext2fs_block_bitmap fs_meta_blocks;
107 struct extent_tree_info eti;
110 struct process_inode_block {
112 struct ea_quota ea_ibody_quota;
113 struct ext2_inode_large inode;
116 struct scan_callback_struct {
122 * For the inodes to process list.
124 static struct process_inode_block *inodes_to_process;
125 static int process_inode_count;
127 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
128 EXT2_MIN_BLOCK_LOG_SIZE + 1];
131 * Free all memory allocated by pass1 in preparation for restarting
134 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
136 ext2fs_free_mem(&inodes_to_process);
137 inodes_to_process = 0;
141 * Check to make sure a device inode is real. Returns 1 if the device
142 * checks out, 0 if not.
144 * Note: this routine is now also used to check FIFO's and Sockets,
145 * since they have the same requirement; the i_block fields should be
148 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
149 struct ext2_inode *inode)
154 * If the index flag is set, then this is a bogus
157 if (inode->i_flags & EXT2_INDEX_FL)
161 * We should be able to do the test below all the time, but
162 * because the kernel doesn't forcibly clear the device
163 * inode's additional i_block fields, there are some rare
164 * occasions when a legitimate device inode will have non-zero
165 * additional i_block fields. So for now, we only complain
166 * when the immutable flag is set, which should never happen
167 * for devices. (And that's when the problem is caused, since
168 * you can't set or clear immutable flags for devices.) Once
169 * the kernel has been fixed we can change this...
171 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
172 for (i=4; i < EXT2_N_BLOCKS; i++)
173 if (inode->i_block[i])
180 * Check to make sure a symlink inode is real. Returns 1 if the symlink
181 * checks out, 0 if not.
183 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
184 struct ext2_inode *inode, char *buf)
189 ext2_extent_handle_t handle;
190 struct ext2_extent_info info;
191 struct ext2fs_extent extent;
193 if ((inode->i_size_high || inode->i_size == 0) ||
194 (inode->i_flags & EXT2_INDEX_FL))
197 if (inode->i_flags & EXT4_EXTENTS_FL) {
198 if (inode->i_flags & EXT4_INLINE_DATA_FL)
200 if (inode->i_size > fs->blocksize)
202 if (ext2fs_extent_open2(fs, ino, inode, &handle))
205 if (ext2fs_extent_get_info(handle, &info) ||
206 (info.num_entries != 1) ||
207 (info.max_depth != 0))
209 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
210 (extent.e_lblk != 0) ||
211 (extent.e_len != 1) ||
212 (extent.e_pblk < fs->super->s_first_data_block) ||
213 (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
217 ext2fs_extent_free(handle);
221 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
224 if (ext2fs_inline_data_size(fs, ino, &inline_size))
226 if (inode->i_size != inline_size)
232 if (ext2fs_is_fast_symlink(inode)) {
233 buf = (char *)inode->i_block;
234 buflen = sizeof(inode->i_block);
236 if ((inode->i_block[0] < fs->super->s_first_data_block) ||
237 (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
240 for (i = 1; i < EXT2_N_BLOCKS; i++)
241 if (inode->i_block[i])
244 if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
247 buflen = fs->blocksize;
250 if (inode->i_flags & EXT4_ENCRYPT_FL)
251 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
253 len = strnlen(buf, buflen);
258 if (len != inode->i_size)
264 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
266 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
267 static void check_extents_inlinedata(e2fsck_t ctx,
268 struct problem_context *pctx)
270 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
273 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
276 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
277 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
279 #undef BAD_SPECIAL_FLAGS
282 * If the immutable (or append-only) flag is set on the inode, offer
285 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
286 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
288 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
291 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
294 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
295 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
299 * If device, fifo or socket, check size is zero -- if not offer to
302 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
304 struct ext2_inode *inode = pctx->inode;
306 if (EXT2_I_SIZE(inode) == 0)
309 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
312 ext2fs_inode_size_set(ctx->fs, inode, 0);
313 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
317 * For a given size, calculate how many blocks would be charged towards quota.
319 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
323 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
324 return EXT2FS_C2B(fs, clusters);
328 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
331 static problem_t check_large_ea_inode(e2fsck_t ctx,
332 struct ext2_ext_attr_entry *entry,
333 struct problem_context *pctx,
334 blk64_t *quota_blocks)
336 struct ext2_inode inode;
340 /* Check if inode is within valid range */
341 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
342 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
343 pctx->num = entry->e_value_inum;
344 return PR_1_ATTR_VALUE_EA_INODE;
347 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
349 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
351 com_err("check_large_ea_inode", retval,
352 _("while hashing entry with e_value_inum = %u"),
353 entry->e_value_inum);
357 if (hash == entry->e_hash) {
358 *quota_blocks = size_to_quota_blocks(ctx->fs,
359 entry->e_value_size);
361 /* This might be an old Lustre-style ea_inode reference. */
362 if (inode.i_mtime == pctx->ino &&
363 inode.i_generation == pctx->inode->i_generation) {
366 /* If target inode is also missing EA_INODE flag,
367 * this is likely to be a bad reference.
369 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
370 pctx->num = entry->e_value_inum;
371 return PR_1_ATTR_VALUE_EA_INODE;
373 pctx->num = entry->e_hash;
374 return PR_1_ATTR_HASH;
379 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
380 pctx->num = entry->e_value_inum;
381 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
382 inode.i_flags |= EXT4_EA_INODE_FL;
383 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
386 return PR_1_ATTR_NO_EA_INODE_FL;
392 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
393 struct ext2_ext_attr_entry *first, void *end)
395 struct ext2_ext_attr_entry *entry;
398 (void *)entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry);
399 entry = EXT2_EXT_ATTR_NEXT(entry)) {
400 if (!entry->e_value_inum)
402 if (!ctx->ea_inode_refs) {
403 pctx->errcode = ea_refcount_create(0,
404 &ctx->ea_inode_refs);
407 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
408 ctx->flags |= E2F_FLAG_ABORT;
412 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
417 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
418 struct ea_quota *ea_ibody_quota)
420 struct ext2_super_block *sb = ctx->fs->super;
421 struct ext2_inode_large *inode;
422 struct ext2_ext_attr_entry *entry;
423 char *start, *header, *end;
424 unsigned int storage_size, remain;
425 problem_t problem = 0;
428 ea_ibody_quota->blocks = 0;
429 ea_ibody_quota->inodes = 0;
431 inode = (struct ext2_inode_large *) pctx->inode;
432 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
433 inode->i_extra_isize;
434 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
435 inode->i_extra_isize;
436 end = header + storage_size;
437 start = header + sizeof(__u32);
438 entry = (struct ext2_ext_attr_entry *) start;
440 /* scan all entry's headers first */
442 /* take finish entry 0UL into account */
443 remain = storage_size - sizeof(__u32);
445 region = region_create(0, storage_size);
447 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
449 ctx->flags |= E2F_FLAG_ABORT;
452 if (region_allocate(region, 0, sizeof(__u32))) {
453 problem = PR_1_INODE_EA_ALLOC_COLLISION;
457 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
458 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
461 if (region_allocate(region, (char *)entry - (char *)header,
462 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
463 problem = PR_1_INODE_EA_ALLOC_COLLISION;
467 /* header eats this space */
468 remain -= sizeof(struct ext2_ext_attr_entry);
470 /* is attribute name valid? */
471 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
472 pctx->num = entry->e_name_len;
473 problem = PR_1_ATTR_NAME_LEN;
477 /* attribute len eats this space */
478 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
480 if (entry->e_value_inum == 0) {
481 /* check value size */
482 if (entry->e_value_size > remain) {
483 pctx->num = entry->e_value_size;
484 problem = PR_1_ATTR_VALUE_SIZE;
488 if (entry->e_value_size &&
489 region_allocate(region,
490 sizeof(__u32) + entry->e_value_offs,
492 entry->e_value_size))) {
493 problem = PR_1_INODE_EA_ALLOC_COLLISION;
497 hash = ext2fs_ext_attr_hash_entry(entry,
498 start + entry->e_value_offs);
500 /* e_hash may be 0 in older inode's ea */
501 if (entry->e_hash != 0 && entry->e_hash != hash) {
502 pctx->num = entry->e_hash;
503 problem = PR_1_ATTR_HASH;
507 blk64_t quota_blocks;
509 problem = check_large_ea_inode(ctx, entry, pctx,
514 ea_ibody_quota->blocks += quota_blocks;
515 ea_ibody_quota->inodes++;
518 /* If EA value is stored in external inode then it does not
519 * consume space here */
520 if (entry->e_value_inum == 0)
521 remain -= entry->e_value_size;
523 entry = EXT2_EXT_ATTR_NEXT(entry);
526 if (region_allocate(region, (char *)entry - (char *)header,
528 problem = PR_1_INODE_EA_ALLOC_COLLISION;
535 * it seems like a corruption. it's very unlikely we could repair
536 * EA(s) in automatic fashion -bzzz
538 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
539 inc_ea_inode_refs(ctx, pctx,
540 (struct ext2_ext_attr_entry *)start, end);
544 /* simply remove all possible EA(s) */
545 *((__u32 *)header) = 0UL;
546 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
547 EXT2_INODE_SIZE(sb), "pass1");
548 ea_ibody_quota->blocks = 0;
549 ea_ibody_quota->inodes = 0;
552 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
553 return (xtime & (1U << 31)) != 0 &&
554 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
557 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
558 check_inode_extra_negative_epoch(inode->i_##xtime, \
559 inode->i_##xtime##_extra)
561 /* When today's date is earlier than 2242, we assume that atimes,
562 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
563 * actually pre-1970 dates mis-encoded.
565 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
567 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
568 struct ea_quota *ea_ibody_quota)
570 struct ext2_super_block *sb = ctx->fs->super;
571 struct ext2_inode_large *inode;
575 ea_ibody_quota->blocks = 0;
576 ea_ibody_quota->inodes = 0;
578 inode = (struct ext2_inode_large *) pctx->inode;
579 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
580 /* this isn't large inode. so, nothing to check */
585 printf("inode #%u, i_extra_size %d\n", pctx->ino,
586 inode->i_extra_isize);
588 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
589 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
590 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
592 * For now we will allow i_extra_isize to be 0, but really
593 * implementations should never allow i_extra_isize to be 0
595 if (inode->i_extra_isize &&
596 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
597 inode->i_extra_isize & 3)) {
598 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
600 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
601 inode->i_extra_isize = sb->s_want_extra_isize;
603 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
604 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
605 EXT2_INODE_SIZE(sb), "pass1");
608 /* check if there is no place for an EA header */
609 if (inode->i_extra_isize >= max - sizeof(__u32))
612 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
613 inode->i_extra_isize);
614 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
615 /* it seems inode has an extended attribute(s) in body */
616 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
620 * If the inode's extended atime (ctime, crtime, mtime) is stored in
621 * the old, invalid format, repair it.
623 if (((sizeof(time_t) <= 4) ||
624 (((sizeof(time_t) > 4) &&
625 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
626 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
627 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
628 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
629 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
631 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
634 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
635 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
636 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
637 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
638 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
639 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
640 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
641 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
642 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
643 EXT2_INODE_SIZE(sb), "pass1");
649 * Check to see if the inode might really be a directory, despite i_mode
651 * This is a lot of complexity for something for which I'm not really
652 * convinced happens frequently in the wild. If for any reason this
653 * causes any problems, take this code out.
654 * [tytso:20070331.0827EDT]
656 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
659 struct ext2_inode *inode = pctx->inode;
660 struct ext2_dir_entry *dirent;
663 unsigned int i, rec_len, not_device = 0;
668 * If the mode looks OK, we believe it. If the first block in
669 * the i_block array is 0, this cannot be a directory. If the
670 * inode is extent-mapped, it is still the case that the latter
671 * cannot be 0 - the magic number in the extent header would make
674 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
675 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
679 * Check the block numbers in the i_block array for validity:
680 * zero blocks are skipped (but the first one cannot be zero -
681 * see above), other blocks are checked against the first and
682 * max data blocks (from the the superblock) and against the
683 * block bitmap. Any invalid block found means this cannot be
686 * If there are non-zero blocks past the fourth entry, then
687 * this cannot be a device file: we remember that for the next
690 * For extent mapped files, we don't do any sanity checking:
691 * just try to get the phys block of logical block 0 and run
694 * For inline data files, we just try to get the size of inline
695 * data. If it's true, we will treat it as a directory.
698 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
699 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
700 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
703 unsigned int rec_len2;
704 struct ext2_dir_entry de;
706 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
709 * If the size isn't a multiple of 4, it's probably not a
715 * If the first 10 bytes don't look like a directory entry,
716 * it's probably not a directory.
718 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
719 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
720 EXT2_DIR_REC_LEN(0));
721 dotdot = ext2fs_le32_to_cpu(dotdot);
722 de.inode = ext2fs_le32_to_cpu(de.inode);
723 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
724 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
725 if (dotdot >= ctx->fs->super->s_inodes_count ||
726 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
727 dotdot != EXT2_ROOT_INO) ||
728 de.inode >= ctx->fs->super->s_inodes_count ||
729 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
731 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
732 EXT4_INLINE_DATA_DOTDOT_SIZE)
734 /* device files never have a "system.data" entry */
736 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
738 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
741 /* device files are never extent mapped */
744 for (i=0; i < EXT2_N_BLOCKS; i++) {
745 blk = inode->i_block[i];
751 if (blk < ctx->fs->super->s_first_data_block ||
752 blk >= ext2fs_blocks_count(ctx->fs->super) ||
753 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
755 return; /* Invalid block, can't be dir */
757 blk = inode->i_block[0];
761 * If the mode says this is a device file and the i_links_count field
762 * is sane and we have not ruled it out as a device file previously,
763 * we declare it a device file, not a directory.
765 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
766 (inode->i_links_count == 1) && !not_device)
769 /* read the first block */
770 ehandler_operation(_("reading directory block"));
771 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
772 ehandler_operation(0);
776 dirent = (struct ext2_dir_entry *) buf;
777 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
780 if ((ext2fs_dirent_name_len(dirent) != 1) ||
781 (dirent->name[0] != '.') ||
782 (dirent->inode != pctx->ino) ||
785 (rec_len >= ctx->fs->blocksize - 12))
788 dirent = (struct ext2_dir_entry *) (buf + rec_len);
789 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
792 if ((ext2fs_dirent_name_len(dirent) != 2) ||
793 (dirent->name[0] != '.') ||
794 (dirent->name[1] != '.') ||
800 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
801 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
802 e2fsck_write_inode_full(ctx, pctx->ino, inode,
803 EXT2_INODE_SIZE(ctx->fs->super),
804 "check_is_really_dir");
808 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
809 int flags, ext2_icount_t hint,
812 unsigned int threshold;
813 unsigned int save_type;
822 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
824 profile_get_uint(ctx->profile, "scratch_files",
825 "numdirs_threshold", 0, 0, &threshold);
826 profile_get_boolean(ctx->profile, "scratch_files",
827 "icount", 0, 1, &enable);
829 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
831 num_dirs = 1024; /* Guess */
833 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
834 (!threshold || num_dirs > threshold)) {
835 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
840 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
842 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
843 flags |= EXT2_ICOUNT_OPT_FULLMAP;
844 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
845 ctx->fs->default_bitmap_type = save_type;
849 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
851 struct problem_context *pctx)
854 struct ext2_inode_large inode;
857 * Reread inode. If we don't see checksum error, then this inode
858 * has been fixed elsewhere.
860 ctx->stashed_ino = 0;
861 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
863 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
869 * Checksum still doesn't match. That implies that the inode passes
870 * all the sanity checks, so maybe the checksum is simply corrupt.
871 * See if the user will go for fixing that.
873 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
876 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
881 static void reserve_block_for_root_repair(e2fsck_t ctx)
885 ext2_filsys fs = ctx->fs;
887 ctx->root_repair_block = 0;
888 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
891 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
894 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
895 ctx->root_repair_block = blk;
898 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
902 ext2_filsys fs = ctx->fs;
903 static const char name[] = "lost+found";
906 ctx->lnf_repair_block = 0;
907 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
910 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
913 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
914 ctx->lnf_repair_block = blk;
917 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
921 struct ext2_xattr_handle *handle;
924 retval = ext2fs_xattrs_open(fs, ino, &handle);
928 retval = ext2fs_xattrs_read(handle);
932 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
937 (void) ext2fs_xattrs_close(&handle);
941 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
942 struct problem_context *pctx,
949 * If the inode failed the checksum and the user didn't
950 * clear the inode, test the checksum again -- if it still
951 * fails, ask the user if the checksum should be corrected.
953 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
955 ctx->flags |= E2F_FLAG_ABORT;
957 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
959 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
960 if ((ctx)->flags & E2F_FLAG_ABORT) \
964 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
969 for (i = 0; i < EXT2_N_BLOCKS; i++) {
970 x = inode->i_block[i];
971 #ifdef WORDS_BIGENDIAN
972 x = ext2fs_swab32(x);
974 if (x >= ext2fs_blocks_count(fs->super))
982 * Figure out what to do with an inode that has both extents and inline data
983 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
985 static int fix_inline_data_extents_file(e2fsck_t ctx,
987 struct ext2_inode *inode,
989 struct problem_context *pctx)
991 size_t max_inline_ea_size;
992 ext2_filsys fs = ctx->fs;
995 /* Both feature flags not set? Just run the regular checks */
996 if (!ext2fs_has_feature_extents(fs->super) &&
997 !ext2fs_has_feature_inline_data(fs->super))
1000 /* Clear both flags if it's a special file */
1001 if (LINUX_S_ISCHR(inode->i_mode) ||
1002 LINUX_S_ISBLK(inode->i_mode) ||
1003 LINUX_S_ISFIFO(inode->i_mode) ||
1004 LINUX_S_ISSOCK(inode->i_mode)) {
1005 check_extents_inlinedata(ctx, pctx);
1009 /* If it looks like an extent tree, try to clear inlinedata */
1010 if (ext2fs_extent_header_verify(inode->i_block,
1011 sizeof(inode->i_block)) == 0 &&
1012 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1013 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1018 /* If it looks short enough to be inline data, try to clear extents */
1019 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1020 max_inline_ea_size = inode_size -
1021 (EXT2_GOOD_OLD_INODE_SIZE +
1022 ((struct ext2_inode_large *)inode)->i_extra_isize);
1024 max_inline_ea_size = 0;
1025 if (EXT2_I_SIZE(inode) <
1026 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1027 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1028 inode->i_flags &= ~EXT4_EXTENTS_FL;
1034 * Too big for inline data, but no evidence of extent tree -
1035 * maybe it's a block map file? If the mappings all look valid?
1037 if (could_be_block_map(fs, inode) &&
1038 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1039 #ifdef WORDS_BIGENDIAN
1042 for (i = 0; i < EXT2_N_BLOCKS; i++)
1043 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1046 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1051 /* Oh well, just clear the busted inode. */
1052 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1053 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1059 e2fsck_write_inode(ctx, ino, inode, "pass1");
1064 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1066 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1067 dgrp_t start = *group, grp;
1068 blk64_t blocks_to_read = 0;
1069 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1071 if (ctx->readahead_kb == 0)
1074 /* Keep iterating groups until we have enough to readahead */
1075 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1076 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1077 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1079 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1080 ext2fs_bg_itable_unused(ctx->fs, grp);
1081 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1083 if (blocks_to_read * ctx->fs->blocksize >
1084 ctx->readahead_kb * 1024)
1088 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1090 if (err == EAGAIN) {
1091 ctx->readahead_kb /= 2;
1097 /* Error; disable itable readahead */
1098 *group = ctx->fs->group_desc_count;
1099 *next_ino = ctx->fs->super->s_inodes_count;
1102 * Don't do more readahead until we've reached the first inode
1103 * of the last inode scan buffer block for the last group.
1106 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1107 ctx->inode_buffer_blocks :
1108 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1109 ctx->fs->blocksize /
1110 EXT2_INODE_SIZE(ctx->fs->super);
1112 *next_ino = inodes_in_group -
1113 (inodes_in_group % inodes_per_buffer) + 1 +
1114 (grp * ctx->fs->super->s_inodes_per_group);
1119 * Check if the passed ino is one of the used superblock quota inodes.
1121 * Before the quota inodes were journaled, older superblock quota inodes
1122 * were just regular files in the filesystem and not reserved inodes. This
1123 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1124 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1126 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1128 enum quota_type qtype;
1130 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1131 if (*quota_sb_inump(sb, qtype) == ino)
1138 * Check if the passed ino is one of the reserved quota inodes.
1139 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1140 * inodes. These inodes may or may not be in use by the quota feature.
1142 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1144 enum quota_type qtype;
1146 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1147 if (quota_type2inum(qtype, fs->super) == ino)
1153 void e2fsck_pass1(e2fsck_t ctx)
1157 ext2_filsys fs = ctx->fs;
1159 struct ext2_inode *inode = NULL;
1160 ext2_inode_scan scan = NULL;
1161 char *block_buf = NULL;
1162 #ifdef RESOURCE_TRACK
1163 struct resource_track rtrack;
1165 unsigned char frag, fsize;
1166 struct problem_context pctx;
1167 struct scan_callback_struct scan_struct;
1168 struct ext2_super_block *sb = ctx->fs->super;
1170 int imagic_fs, extent_fs, inlinedata_fs;
1171 int low_dtime_check = 1;
1172 int inode_size = EXT2_INODE_SIZE(fs->super);
1174 int failed_csum = 0;
1175 ext2_ino_t ino_threshold = 0;
1176 dgrp_t ra_group = 0;
1177 struct ea_quota ea_ibody_quota;
1179 init_resource_track(&rtrack, ctx->fs->io);
1180 clear_problem_context(&pctx);
1182 /* If we can do readahead, figure out how many groups to pull in. */
1183 if (!e2fsck_can_readahead(ctx->fs))
1184 ctx->readahead_kb = 0;
1185 else if (ctx->readahead_kb == ~0ULL)
1186 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1187 pass1_readahead(ctx, &ra_group, &ino_threshold);
1189 if (!(ctx->options & E2F_OPT_PREEN))
1190 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1192 if (ext2fs_has_feature_dir_index(fs->super) &&
1193 !(ctx->options & E2F_OPT_NO)) {
1194 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1195 ctx->dirs_to_hash = 0;
1199 mtrace_print("Pass 1");
1202 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1204 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1205 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1206 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1207 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1208 max_sizes = (max_sizes * (1UL << i));
1209 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1213 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1214 extent_fs = ext2fs_has_feature_extents(sb);
1215 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1218 * Allocate bitmaps structures
1220 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1221 EXT2FS_BMAP64_RBTREE,
1223 &ctx->inode_used_map);
1226 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1227 ctx->flags |= E2F_FLAG_ABORT;
1230 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1231 _("directory inode map"),
1232 EXT2FS_BMAP64_AUTODIR,
1233 "inode_dir_map", &ctx->inode_dir_map);
1236 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1237 ctx->flags |= E2F_FLAG_ABORT;
1240 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1241 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1242 "inode_reg_map", &ctx->inode_reg_map);
1245 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1246 ctx->flags |= E2F_FLAG_ABORT;
1249 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1250 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1251 "block_found_map", &ctx->block_found_map);
1254 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1255 ctx->flags |= E2F_FLAG_ABORT;
1258 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1259 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1260 "block_metadata_map", &ctx->block_metadata_map);
1263 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1264 ctx->flags |= E2F_FLAG_ABORT;
1267 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1268 &ctx->inode_link_info);
1270 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1271 ctx->flags |= E2F_FLAG_ABORT;
1274 bufsize = inode_size;
1275 if (bufsize < sizeof(struct ext2_inode_large))
1276 bufsize = sizeof(struct ext2_inode_large);
1277 inode = (struct ext2_inode *)
1278 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1280 inodes_to_process = (struct process_inode_block *)
1281 e2fsck_allocate_memory(ctx,
1282 (ctx->process_inode_size *
1283 sizeof(struct process_inode_block)),
1284 "array of inodes to process");
1285 process_inode_count = 0;
1287 pctx.errcode = ext2fs_init_dblist(fs, 0);
1289 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1290 ctx->flags |= E2F_FLAG_ABORT;
1295 * If the last orphan field is set, clear it, since the pass1
1296 * processing will automatically find and clear the orphans.
1297 * In the future, we may want to try using the last_orphan
1298 * linked list ourselves, but for now, we clear it so that the
1299 * ext3 mount code won't get confused.
1301 if (!(ctx->options & E2F_OPT_READONLY)) {
1302 if (fs->super->s_last_orphan) {
1303 fs->super->s_last_orphan = 0;
1304 ext2fs_mark_super_dirty(fs);
1308 mark_table_blocks(ctx);
1309 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1310 &ctx->block_found_map);
1312 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1313 ctx->flags |= E2F_FLAG_ABORT;
1316 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1317 "block interate buffer");
1318 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1319 e2fsck_use_inode_shortcuts(ctx, 1);
1320 e2fsck_intercept_block_allocations(ctx);
1321 old_op = ehandler_operation(_("opening inode scan"));
1322 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1324 ehandler_operation(old_op);
1326 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1327 ctx->flags |= E2F_FLAG_ABORT;
1330 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1331 EXT2_SF_WARN_GARBAGE_INODES, 0);
1332 ctx->stashed_inode = inode;
1333 scan_struct.ctx = ctx;
1334 scan_struct.block_buf = block_buf;
1335 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1336 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1337 ctx->fs->group_desc_count)))
1339 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1340 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1341 (fs->super->s_mkfs_time &&
1342 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1343 low_dtime_check = 0;
1345 if (ext2fs_has_feature_mmp(fs->super) &&
1346 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1347 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1348 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1349 fs->super->s_mmp_block);
1351 /* Set up ctx->lost_and_found if possible */
1352 (void) e2fsck_get_lost_and_found(ctx, 0);
1355 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1356 if (e2fsck_mmp_update(fs))
1357 fatal_error(ctx, 0);
1359 old_op = ehandler_operation(_("getting next inode from scan"));
1360 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1362 if (ino > ino_threshold)
1363 pass1_readahead(ctx, &ra_group, &ino_threshold);
1364 ehandler_operation(old_op);
1365 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1367 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1369 * If badblocks says badblocks is bad, offer to clear
1370 * the list, update the in-core bb list, and restart
1373 if (ino == EXT2_BAD_INO &&
1374 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1378 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1379 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1380 ctx->fs->badblocks = NULL;
1381 err = ext2fs_read_bb_inode(ctx->fs,
1382 &ctx->fs->badblocks);
1384 fix_problem(ctx, PR_1_ISCAN_ERROR,
1386 ctx->flags |= E2F_FLAG_ABORT;
1389 err = ext2fs_inode_scan_goto_blockgroup(scan,
1392 fix_problem(ctx, PR_1_ISCAN_ERROR,
1394 ctx->flags |= E2F_FLAG_ABORT;
1399 if (!ctx->inode_bb_map)
1401 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1402 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1406 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1407 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1408 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1409 ctx->flags |= E2F_FLAG_ABORT;
1416 ctx->stashed_ino = ino;
1418 /* Clear trashed inode? */
1419 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1420 inode->i_links_count > 0 &&
1421 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1423 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1425 failed_csum = pctx.errcode != 0;
1428 * Check for inodes who might have been part of the
1429 * orphaned list linked list. They should have gotten
1430 * dealt with by now, unless the list had somehow been
1433 * FIXME: In the future, inodes which are still in use
1434 * (and which are therefore) pending truncation should
1435 * be handled specially. Right now we just clear the
1436 * dtime field, and the normal e2fsck handling of
1437 * inodes where i_size and the inode blocks are
1438 * inconsistent is to fix i_size, instead of releasing
1439 * the extra blocks. This won't catch the inodes that
1440 * was at the end of the orphan list, but it's better
1441 * than nothing. The right answer is that there
1442 * shouldn't be any bugs in the orphan list handling. :-)
1444 if (inode->i_dtime && low_dtime_check &&
1445 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1446 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1447 inode->i_dtime = inode->i_links_count ?
1449 e2fsck_write_inode(ctx, ino, inode,
1455 if (inode->i_links_count) {
1456 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1457 ino, inode->i_links_count);
1459 pctx.num = inode->i_links_count;
1460 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1461 ctx->flags |= E2F_FLAG_ABORT;
1464 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1465 !quota_inum_is_reserved(fs, ino)) {
1466 if (!inode->i_dtime && inode->i_mode) {
1467 if (fix_problem(ctx,
1468 PR_1_ZERO_DTIME, &pctx)) {
1469 inode->i_dtime = ctx->now;
1470 e2fsck_write_inode(ctx, ino, inode,
1475 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1479 /* Conflicting inlinedata/extents inode flags? */
1480 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1481 (inode->i_flags & EXT4_EXTENTS_FL)) {
1482 int res = fix_inline_data_extents_file(ctx, ino, inode,
1486 /* skip FINISH_INODE_LOOP */
1491 /* Test for incorrect inline_data flags settings. */
1492 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1493 (ino >= EXT2_FIRST_INODE(fs->super))) {
1496 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1497 if (!pctx.errcode && size &&
1498 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1499 ext2fs_set_feature_inline_data(sb);
1500 ext2fs_mark_super_dirty(fs);
1502 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1503 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1504 /* skip FINISH_INODE_LOOP */
1509 /* Test for inline data flag but no attr */
1510 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1511 (ino >= EXT2_FIRST_INODE(fs->super))) {
1518 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1519 err = get_inline_data_ea_size(fs, ino, &size);
1520 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1521 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1525 /* Everything is awesome... */
1527 case EXT2_ET_BAD_EA_BLOCK_NUM:
1528 case EXT2_ET_BAD_EA_HASH:
1529 case EXT2_ET_BAD_EA_HEADER:
1530 case EXT2_ET_EA_BAD_NAME_LEN:
1531 case EXT2_ET_EA_BAD_VALUE_SIZE:
1532 case EXT2_ET_EA_KEY_NOT_FOUND:
1533 case EXT2_ET_EA_NO_SPACE:
1534 case EXT2_ET_MISSING_EA_FEATURE:
1535 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1536 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1537 case EXT2_ET_INLINE_DATA_NO_SPACE:
1538 case EXT2_ET_NO_INLINE_DATA:
1539 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1540 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1541 /* broken EA or no system.data EA; truncate */
1542 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1544 err = ext2fs_inode_size_set(fs, inode, 0);
1547 ctx->flags |= E2F_FLAG_ABORT;
1550 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1551 memset(&inode->i_block, 0,
1552 sizeof(inode->i_block));
1553 e2fsck_write_inode(ctx, ino, inode,
1559 /* Some other kind of non-xattr error? */
1561 ctx->flags |= E2F_FLAG_ABORT;
1567 * Test for incorrect extent flag settings.
1569 * On big-endian machines we must be careful:
1570 * When the inode is read, the i_block array is not swapped
1571 * if the extent flag is set. Therefore if we are testing
1572 * for or fixing a wrongly-set flag, we must potentially
1573 * (un)swap before testing, or after fixing.
1577 * In this case the extents flag was set when read, so
1578 * extent_header_verify is ok. If the inode is cleared,
1579 * no need to swap... so no extra swapping here.
1581 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1582 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1583 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1584 if ((ext2fs_extent_header_verify(inode->i_block,
1585 sizeof(inode->i_block)) == 0) &&
1586 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1587 ext2fs_set_feature_extents(sb);
1588 ext2fs_mark_super_dirty(fs);
1590 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1592 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1593 if (ino == EXT2_BAD_INO)
1594 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1596 /* skip FINISH_INODE_LOOP */
1602 * For big-endian machines:
1603 * If the inode didn't have the extents flag set when it
1604 * was read, then the i_blocks array was swapped. To test
1605 * as an extents header, we must swap it back first.
1606 * IF we then set the extents flag, the entire i_block
1607 * array must be un/re-swapped to make it proper extents data.
1609 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1610 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1611 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1612 (LINUX_S_ISREG(inode->i_mode) ||
1613 LINUX_S_ISDIR(inode->i_mode))) {
1615 #ifdef WORDS_BIGENDIAN
1616 __u32 tmp_block[EXT2_N_BLOCKS];
1618 for (i = 0; i < EXT2_N_BLOCKS; i++)
1619 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1622 ehp = inode->i_block;
1624 if ((ext2fs_extent_header_verify(ehp,
1625 sizeof(inode->i_block)) == 0) &&
1626 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1627 inode->i_flags |= EXT4_EXTENTS_FL;
1628 #ifdef WORDS_BIGENDIAN
1629 memcpy(inode->i_block, tmp_block,
1630 sizeof(inode->i_block));
1632 e2fsck_write_inode(ctx, ino, inode, "pass1");
1637 if (ino == EXT2_BAD_INO) {
1638 struct process_block_struct pb;
1640 if ((failed_csum || inode->i_mode || inode->i_uid ||
1641 inode->i_gid || inode->i_links_count ||
1642 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1643 inode->i_file_acl) &&
1644 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1645 memset(inode, 0, sizeof(struct ext2_inode));
1646 e2fsck_write_inode(ctx, ino, inode,
1651 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1652 &pb.fs_meta_blocks);
1655 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1656 ctx->flags |= E2F_FLAG_ABORT;
1659 pb.ino = EXT2_BAD_INO;
1660 pb.num_blocks = pb.last_block = 0;
1661 pb.last_db_block = -1;
1662 pb.num_illegal_blocks = 0;
1663 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1664 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1668 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1669 block_buf, process_bad_block, &pb);
1670 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1672 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1673 ctx->flags |= E2F_FLAG_ABORT;
1677 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1678 ctx->flags |= E2F_FLAG_ABORT;
1681 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1682 clear_problem_context(&pctx);
1683 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1685 } else if (ino == EXT2_ROOT_INO) {
1687 * Make sure the root inode is a directory; if
1688 * not, offer to clear it. It will be
1689 * regenerated in pass #3.
1691 if (!LINUX_S_ISDIR(inode->i_mode)) {
1692 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1696 * If dtime is set, offer to clear it. mke2fs
1697 * version 0.2b created filesystems with the
1698 * dtime field set for the root and lost+found
1699 * directories. We won't worry about
1700 * /lost+found, since that can be regenerated
1701 * easily. But we will fix the root directory
1702 * as a special case.
1704 if (inode->i_dtime && inode->i_links_count) {
1705 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1707 e2fsck_write_inode(ctx, ino, inode,
1712 } else if (ino == EXT2_JOURNAL_INO) {
1713 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1714 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1715 if (!LINUX_S_ISREG(inode->i_mode) &&
1716 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1718 inode->i_mode = LINUX_S_IFREG;
1719 e2fsck_write_inode(ctx, ino, inode,
1723 check_blocks(ctx, &pctx, block_buf, NULL);
1724 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1727 if ((inode->i_links_count ||
1728 inode->i_blocks || inode->i_block[0]) &&
1729 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1731 memset(inode, 0, inode_size);
1732 ext2fs_icount_store(ctx->inode_link_info,
1734 e2fsck_write_inode_full(ctx, ino, inode,
1735 inode_size, "pass1");
1738 } else if (quota_inum_is_reserved(fs, ino)) {
1739 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1740 if (ext2fs_has_feature_quota(fs->super) &&
1741 quota_inum_is_super(fs->super, ino)) {
1742 if (!LINUX_S_ISREG(inode->i_mode) &&
1743 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1745 inode->i_mode = LINUX_S_IFREG;
1746 e2fsck_write_inode(ctx, ino, inode,
1750 check_blocks(ctx, &pctx, block_buf, NULL);
1751 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1754 if ((inode->i_links_count ||
1755 inode->i_blocks || inode->i_block[0]) &&
1756 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1758 memset(inode, 0, inode_size);
1759 ext2fs_icount_store(ctx->inode_link_info,
1761 e2fsck_write_inode_full(ctx, ino, inode,
1762 inode_size, "pass1");
1765 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1766 problem_t problem = 0;
1768 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1769 if (ino == EXT2_BOOT_LOADER_INO) {
1770 if (LINUX_S_ISDIR(inode->i_mode))
1771 problem = PR_1_RESERVED_BAD_MODE;
1772 } else if (ino == EXT2_RESIZE_INO) {
1773 if (inode->i_mode &&
1774 !LINUX_S_ISREG(inode->i_mode))
1775 problem = PR_1_RESERVED_BAD_MODE;
1777 if (inode->i_mode != 0)
1778 problem = PR_1_RESERVED_BAD_MODE;
1781 if (fix_problem(ctx, problem, &pctx)) {
1783 e2fsck_write_inode(ctx, ino, inode,
1788 check_blocks(ctx, &pctx, block_buf, NULL);
1789 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1793 if (!inode->i_links_count) {
1794 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1798 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1799 * deleted files. Oops.
1801 * Since all new ext2 implementations get this right,
1802 * we now assume that the case of non-zero
1803 * i_links_count and non-zero dtime means that we
1804 * should keep the file, not delete it.
1807 if (inode->i_dtime) {
1808 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1810 e2fsck_write_inode(ctx, ino, inode, "pass1");
1815 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1816 switch (fs->super->s_creator_os) {
1818 frag = inode->osd2.hurd2.h_i_frag;
1819 fsize = inode->osd2.hurd2.h_i_fsize;
1825 if (inode->i_faddr || frag || fsize ||
1826 (!ext2fs_has_feature_largedir(fs->super) &&
1827 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1828 mark_inode_bad(ctx, ino);
1829 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1830 !ext2fs_has_feature_64bit(fs->super) &&
1831 inode->osd2.linux2.l_i_file_acl_high != 0)
1832 mark_inode_bad(ctx, ino);
1833 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1834 !ext2fs_has_feature_huge_file(fs->super) &&
1835 (inode->osd2.linux2.l_i_blocks_hi != 0))
1836 mark_inode_bad(ctx, ino);
1837 if (inode->i_flags & EXT2_IMAGIC_FL) {
1839 if (!ctx->inode_imagic_map)
1840 alloc_imagic_map(ctx);
1841 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1844 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1845 inode->i_flags &= ~EXT2_IMAGIC_FL;
1846 e2fsck_write_inode(ctx, ino,
1853 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1854 check_is_really_dir(ctx, &pctx, block_buf);
1857 * ext2fs_inode_has_valid_blocks2 does not actually look
1858 * at i_block[] values, so not endian-sensitive here.
1860 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1861 LINUX_S_ISLNK(inode->i_mode) &&
1862 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1863 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1864 inode->i_flags &= ~EXT4_EXTENTS_FL;
1865 e2fsck_write_inode(ctx, ino, inode, "pass1");
1869 if (LINUX_S_ISDIR(inode->i_mode)) {
1870 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1871 e2fsck_add_dir_info(ctx, ino, 0);
1872 ctx->fs_directory_count++;
1873 if (inode->i_flags & EXT4_ENCRYPT_FL)
1874 add_encrypted_dir(ctx, ino);
1875 } else if (LINUX_S_ISREG (inode->i_mode)) {
1876 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1877 ctx->fs_regular_count++;
1878 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1879 e2fsck_pass1_check_device_inode(fs, inode)) {
1880 check_extents_inlinedata(ctx, &pctx);
1881 check_immutable(ctx, &pctx);
1882 check_size(ctx, &pctx);
1883 ctx->fs_chardev_count++;
1884 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1885 e2fsck_pass1_check_device_inode(fs, inode)) {
1886 check_extents_inlinedata(ctx, &pctx);
1887 check_immutable(ctx, &pctx);
1888 check_size(ctx, &pctx);
1889 ctx->fs_blockdev_count++;
1890 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1891 e2fsck_pass1_check_symlink(fs, ino, inode,
1893 check_immutable(ctx, &pctx);
1894 ctx->fs_symlinks_count++;
1895 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1896 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1898 } else if (ext2fs_is_fast_symlink(inode)) {
1899 ctx->fs_fast_symlinks_count++;
1900 check_blocks(ctx, &pctx, block_buf,
1902 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1906 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1907 e2fsck_pass1_check_device_inode(fs, inode)) {
1908 check_extents_inlinedata(ctx, &pctx);
1909 check_immutable(ctx, &pctx);
1910 check_size(ctx, &pctx);
1911 ctx->fs_fifo_count++;
1912 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1913 e2fsck_pass1_check_device_inode(fs, inode)) {
1914 check_extents_inlinedata(ctx, &pctx);
1915 check_immutable(ctx, &pctx);
1916 check_size(ctx, &pctx);
1917 ctx->fs_sockets_count++;
1919 mark_inode_bad(ctx, ino);
1920 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1921 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1922 if (inode->i_block[EXT2_IND_BLOCK])
1923 ctx->fs_ind_count++;
1924 if (inode->i_block[EXT2_DIND_BLOCK])
1925 ctx->fs_dind_count++;
1926 if (inode->i_block[EXT2_TIND_BLOCK])
1927 ctx->fs_tind_count++;
1929 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1930 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1931 (inode->i_block[EXT2_IND_BLOCK] ||
1932 inode->i_block[EXT2_DIND_BLOCK] ||
1933 inode->i_block[EXT2_TIND_BLOCK] ||
1934 ext2fs_file_acl_block(fs, inode))) {
1935 struct process_inode_block *itp;
1937 itp = &inodes_to_process[process_inode_count];
1939 itp->ea_ibody_quota = ea_ibody_quota;
1940 if (inode_size < sizeof(struct ext2_inode_large))
1941 memcpy(&itp->inode, inode, inode_size);
1943 memcpy(&itp->inode, inode, sizeof(itp->inode));
1944 process_inode_count++;
1946 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
1948 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1950 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1953 if (process_inode_count >= ctx->process_inode_size) {
1954 process_inodes(ctx, block_buf);
1956 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1960 process_inodes(ctx, block_buf);
1961 ext2fs_close_inode_scan(scan);
1964 reserve_block_for_root_repair(ctx);
1965 reserve_block_for_lnf_repair(ctx);
1968 * If any extended attribute blocks' reference counts need to
1969 * be adjusted, either up (ctx->refcount_extra), or down
1970 * (ctx->refcount), then fix them.
1972 if (ctx->refcount) {
1973 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1974 ea_refcount_free(ctx->refcount);
1977 if (ctx->refcount_extra) {
1978 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1980 ea_refcount_free(ctx->refcount_extra);
1981 ctx->refcount_extra = 0;
1984 if (ctx->ea_block_quota_blocks) {
1985 ea_refcount_free(ctx->ea_block_quota_blocks);
1986 ctx->ea_block_quota_blocks = 0;
1989 if (ctx->ea_block_quota_inodes) {
1990 ea_refcount_free(ctx->ea_block_quota_inodes);
1991 ctx->ea_block_quota_inodes = 0;
1994 if (ctx->invalid_bitmaps)
1995 handle_fs_bad_blocks(ctx);
1997 /* We don't need the block_ea_map any more */
1998 if (ctx->block_ea_map) {
1999 ext2fs_free_block_bitmap(ctx->block_ea_map);
2000 ctx->block_ea_map = 0;
2003 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2004 clear_problem_context(&pctx);
2005 pctx.errcode = ext2fs_create_resize_inode(fs);
2007 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2009 ctx->flags |= E2F_FLAG_ABORT;
2014 if (!pctx.errcode) {
2015 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2017 inode->i_mtime = ctx->now;
2018 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2021 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2024 if (ctx->flags & E2F_FLAG_RESTART) {
2026 * Only the master copy of the superblock and block
2027 * group descriptors are going to be written during a
2028 * restart, so set the superblock to be used to be the
2029 * master superblock.
2031 ctx->use_superblock = 0;
2036 if (ctx->block_dup_map) {
2037 if (ctx->options & E2F_OPT_PREEN) {
2038 clear_problem_context(&pctx);
2039 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2041 e2fsck_pass1_dupblocks(ctx, block_buf);
2043 ctx->flags |= E2F_FLAG_ALLOC_OK;
2044 ext2fs_free_mem(&inodes_to_process);
2046 e2fsck_use_inode_shortcuts(ctx, 0);
2049 ext2fs_close_inode_scan(scan);
2051 ext2fs_free_mem(&block_buf);
2053 ext2fs_free_mem(&inode);
2056 * The l+f inode may have been cleared, so zap it now and
2057 * later passes will recalculate it if necessary
2059 ctx->lost_and_found = 0;
2061 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2062 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2064 ctx->invalid_bitmaps++;
2066 #undef FINISH_INODE_LOOP
2069 * When the inode_scan routines call this callback at the end of the
2070 * glock group, call process_inodes.
2072 static errcode_t scan_callback(ext2_filsys fs,
2073 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2074 dgrp_t group, void * priv_data)
2076 struct scan_callback_struct *scan_struct;
2079 scan_struct = (struct scan_callback_struct *) priv_data;
2080 ctx = scan_struct->ctx;
2082 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
2085 if ((ctx->progress)(ctx, 1, group+1,
2086 ctx->fs->group_desc_count))
2087 return EXT2_ET_CANCEL_REQUESTED;
2093 * Process the inodes in the "inodes to process" list.
2095 static void process_inodes(e2fsck_t ctx, char *block_buf)
2098 struct ext2_inode *old_stashed_inode;
2099 ext2_ino_t old_stashed_ino;
2100 const char *old_operation;
2102 struct problem_context pctx;
2105 printf("begin process_inodes: ");
2107 if (process_inode_count == 0)
2109 old_operation = ehandler_operation(0);
2110 old_stashed_inode = ctx->stashed_inode;
2111 old_stashed_ino = ctx->stashed_ino;
2112 qsort(inodes_to_process, process_inode_count,
2113 sizeof(struct process_inode_block), process_inode_cmp);
2114 clear_problem_context(&pctx);
2115 for (i=0; i < process_inode_count; i++) {
2116 pctx.inode = ctx->stashed_inode =
2117 (struct ext2_inode *) &inodes_to_process[i].inode;
2118 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2121 printf("%u ", pctx.ino);
2123 sprintf(buf, _("reading indirect blocks of inode %u"),
2125 ehandler_operation(buf);
2126 check_blocks(ctx, &pctx, block_buf,
2127 &inodes_to_process[i].ea_ibody_quota);
2128 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2131 ctx->stashed_inode = old_stashed_inode;
2132 ctx->stashed_ino = old_stashed_ino;
2133 process_inode_count = 0;
2135 printf("end process inodes\n");
2137 ehandler_operation(old_operation);
2140 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2142 const struct process_inode_block *ib_a =
2143 (const struct process_inode_block *) a;
2144 const struct process_inode_block *ib_b =
2145 (const struct process_inode_block *) b;
2148 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2149 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2152 * We only call process_inodes() for non-extent
2153 * inodes, so it's OK to pass NULL to
2154 * ext2fs_file_acl_block() here.
2156 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2157 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2159 ret = ib_a->ino - ib_b->ino;
2164 * Mark an inode as being bad in some what
2166 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2168 struct problem_context pctx;
2170 if (!ctx->inode_bad_map) {
2171 clear_problem_context(&pctx);
2173 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2174 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2175 "inode_bad_map", &ctx->inode_bad_map);
2178 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2179 /* Should never get here */
2180 ctx->flags |= E2F_FLAG_ABORT;
2184 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2187 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2189 struct problem_context pctx;
2191 if (!ctx->encrypted_dirs) {
2192 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2196 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2197 if (pctx.errcode == 0)
2200 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2201 /* Should never get here */
2202 ctx->flags |= E2F_FLAG_ABORT;
2206 * This procedure will allocate the inode "bb" (badblock) map table
2208 static void alloc_bb_map(e2fsck_t ctx)
2210 struct problem_context pctx;
2212 clear_problem_context(&pctx);
2213 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2214 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2215 "inode_bb_map", &ctx->inode_bb_map);
2218 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2219 /* Should never get here */
2220 ctx->flags |= E2F_FLAG_ABORT;
2226 * This procedure will allocate the inode imagic table
2228 static void alloc_imagic_map(e2fsck_t ctx)
2230 struct problem_context pctx;
2232 clear_problem_context(&pctx);
2233 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2234 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2235 "inode_imagic_map", &ctx->inode_imagic_map);
2238 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2239 /* Should never get here */
2240 ctx->flags |= E2F_FLAG_ABORT;
2246 * Marks a block as in use, setting the dup_map if it's been set
2247 * already. Called by process_block and process_bad_block.
2249 * WARNING: Assumes checks have already been done to make sure block
2250 * is valid. This is true in both process_block and process_bad_block.
2252 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2254 struct problem_context pctx;
2256 clear_problem_context(&pctx);
2258 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2259 if (!ctx->block_dup_map) {
2260 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2261 _("multiply claimed block map"),
2262 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2263 &ctx->block_dup_map);
2266 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2268 /* Should never get here */
2269 ctx->flags |= E2F_FLAG_ABORT;
2273 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2275 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2280 * When cluster size is greater than one block, it is caller's responsibility
2281 * to make sure block parameter starts at a cluster boundary.
2283 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2286 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2287 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2290 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
2291 mark_block_used(ctx, block + i);
2296 * Adjust the extended attribute block's reference counts at the end
2297 * of pass 1, either by subtracting out references for EA blocks that
2298 * are still referenced in ctx->refcount, or by adding references for
2299 * EA blocks that had extra references as accounted for in
2300 * ctx->refcount_extra.
2302 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2303 char *block_buf, int adjust_sign)
2305 struct ext2_ext_attr_header *header;
2306 struct problem_context pctx;
2307 ext2_filsys fs = ctx->fs;
2312 clear_problem_context(&pctx);
2314 ea_refcount_intr_begin(refcount);
2316 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2319 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2322 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2325 header = (struct ext2_ext_attr_header *) block_buf;
2326 pctx.blkcount = header->h_refcount;
2327 should_be = header->h_refcount + adjust_sign * (int)count;
2328 pctx.num = should_be;
2329 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2330 header->h_refcount = should_be;
2331 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2335 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2344 * Handle processing the extended attribute blocks
2346 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2347 char *block_buf, struct ea_quota *ea_block_quota)
2349 ext2_filsys fs = ctx->fs;
2350 ext2_ino_t ino = pctx->ino;
2351 struct ext2_inode *inode = pctx->inode;
2354 struct ext2_ext_attr_header *header;
2355 struct ext2_ext_attr_entry *first, *entry;
2356 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
2357 __u64 quota_inodes = 0;
2358 region_t region = 0;
2359 int failed_csum = 0;
2361 ea_block_quota->blocks = 0;
2362 ea_block_quota->inodes = 0;
2364 blk = ext2fs_file_acl_block(fs, inode);
2369 * If the Extended attribute flag isn't set, then a non-zero
2370 * file acl means that the inode is corrupted.
2372 * Or if the extended attribute block is an invalid block,
2373 * then the inode is also corrupted.
2375 if (!ext2fs_has_feature_xattr(fs->super) ||
2376 (blk < fs->super->s_first_data_block) ||
2377 (blk >= ext2fs_blocks_count(fs->super))) {
2378 mark_inode_bad(ctx, ino);
2382 /* If ea bitmap hasn't been allocated, create it */
2383 if (!ctx->block_ea_map) {
2384 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2385 _("ext attr block map"),
2386 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2387 &ctx->block_ea_map);
2388 if (pctx->errcode) {
2390 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2391 ctx->flags |= E2F_FLAG_ABORT;
2396 /* Create the EA refcount structure if necessary */
2397 if (!ctx->refcount) {
2398 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2399 if (pctx->errcode) {
2401 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2402 ctx->flags |= E2F_FLAG_ABORT;
2408 /* Debugging text */
2409 printf("Inode %u has EA block %u\n", ino, blk);
2412 /* Have we seen this EA block before? */
2413 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2414 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
2415 ea_block_quota->inodes = 0;
2417 if (ctx->ea_block_quota_blocks) {
2418 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
2421 ea_block_quota->blocks = quota_blocks;
2424 if (ctx->ea_block_quota_inodes)
2425 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
2426 &ea_block_quota->inodes);
2428 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2430 /* Ooops, this EA was referenced more than it stated */
2431 if (!ctx->refcount_extra) {
2432 pctx->errcode = ea_refcount_create(0,
2433 &ctx->refcount_extra);
2434 if (pctx->errcode) {
2436 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2437 ctx->flags |= E2F_FLAG_ABORT;
2441 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2446 * OK, we haven't seen this EA block yet. So we need to
2450 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2451 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2454 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2457 if (pctx->errcode &&
2458 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2462 header = (struct ext2_ext_attr_header *) block_buf;
2463 pctx->blk = ext2fs_file_acl_block(fs, inode);
2464 if (((ctx->ext_attr_ver == 1) &&
2465 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2466 ((ctx->ext_attr_ver == 2) &&
2467 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2468 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2472 if (header->h_blocks != 1) {
2473 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2477 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2480 region = region_create(0, fs->blocksize);
2482 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2483 ctx->flags |= E2F_FLAG_ABORT;
2486 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2487 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2491 first = (struct ext2_ext_attr_entry *)(header+1);
2492 end = block_buf + fs->blocksize;
2494 while ((char *)entry < end && *(__u32 *)entry) {
2497 if (region_allocate(region, (char *)entry - (char *)header,
2498 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2499 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2503 if ((ctx->ext_attr_ver == 1 &&
2504 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2505 (ctx->ext_attr_ver == 2 &&
2506 entry->e_name_index == 0)) {
2507 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2511 if (entry->e_value_inum == 0) {
2512 if (entry->e_value_offs + entry->e_value_size >
2514 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2518 if (entry->e_value_size &&
2519 region_allocate(region, entry->e_value_offs,
2520 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2521 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
2526 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2527 entry->e_value_offs);
2529 if (entry->e_hash != hash) {
2530 pctx->num = entry->e_hash;
2531 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2533 entry->e_hash = hash;
2537 blk64_t entry_quota_blocks;
2539 problem = check_large_ea_inode(ctx, entry, pctx,
2540 &entry_quota_blocks);
2541 if (problem && fix_problem(ctx, problem, pctx))
2544 quota_blocks += entry_quota_blocks;
2548 entry = EXT2_EXT_ATTR_NEXT(entry);
2550 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2551 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2554 region_free(region);
2557 * We only get here if there was no other errors that were fixed.
2558 * If there was a checksum fail, ask to correct it.
2561 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2562 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2568 if (quota_blocks != EXT2FS_C2B(fs, 1)) {
2569 if (!ctx->ea_block_quota_blocks) {
2570 pctx->errcode = ea_refcount_create(0,
2571 &ctx->ea_block_quota_blocks);
2572 if (pctx->errcode) {
2577 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
2582 if (!ctx->ea_block_quota_inodes) {
2583 pctx->errcode = ea_refcount_create(0,
2584 &ctx->ea_block_quota_inodes);
2585 if (pctx->errcode) {
2588 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2589 ctx->flags |= E2F_FLAG_ABORT;
2594 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
2597 ea_block_quota->blocks = quota_blocks;
2598 ea_block_quota->inodes = quota_inodes;
2600 inc_ea_inode_refs(ctx, pctx, first, end);
2601 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
2602 mark_block_used(ctx, blk);
2603 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2608 region_free(region);
2609 ext2fs_file_acl_block_set(fs, inode, 0);
2610 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2614 /* Returns 1 if bad htree, 0 if OK */
2615 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2616 ext2_ino_t ino, struct ext2_inode *inode,
2619 struct ext2_dx_root_info *root;
2620 ext2_filsys fs = ctx->fs;
2624 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2625 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2626 (!ext2fs_has_feature_dir_index(fs->super) &&
2627 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2630 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2632 if ((pctx->errcode) ||
2634 (blk < fs->super->s_first_data_block) ||
2635 (blk >= ext2fs_blocks_count(fs->super))) {
2636 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2642 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2643 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2646 /* XXX should check that beginning matches a directory */
2647 root = (struct ext2_dx_root_info *) (block_buf + 24);
2649 if ((root->reserved_zero || root->info_length < 8) &&
2650 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2653 pctx->num = root->hash_version;
2654 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2655 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2656 (root->hash_version != EXT2_HASH_TEA) &&
2657 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2660 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2661 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2664 pctx->num = root->indirect_levels;
2665 if ((root->indirect_levels > ext2_dir_htree_level(fs)) &&
2666 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2672 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2673 struct ext2_inode *inode, int restart_flag,
2677 inode->i_links_count = 0;
2678 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2679 inode->i_dtime = ctx->now;
2682 * If a special inode has such rotten block mappings that we
2683 * want to clear the whole inode, be sure to actually zap
2684 * the block maps because i_links_count isn't checked for
2685 * special inodes, and we'll end up right back here the next
2688 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2689 memset(inode->i_block, 0, sizeof(inode->i_block));
2691 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2692 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2693 if (ctx->inode_reg_map)
2694 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2695 if (ctx->inode_bad_map)
2696 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2699 * If the inode was partially accounted for before processing
2700 * was aborted, we need to restart the pass 1 scan.
2702 ctx->flags |= restart_flag;
2704 if (ino == EXT2_BAD_INO)
2705 memset(inode, 0, sizeof(struct ext2_inode));
2707 e2fsck_write_inode(ctx, ino, inode, source);
2711 * Use the multiple-blocks reclamation code to fix alignment problems in
2712 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2713 * physical cluster, and we want the block offsets within that cluster to
2716 static int has_unaligned_cluster_map(e2fsck_t ctx,
2717 blk64_t last_pblk, blk64_t last_lblk,
2718 blk64_t pblk, blk64_t lblk)
2720 blk64_t cluster_mask;
2722 if (!ctx->fs->cluster_ratio_bits)
2724 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2727 * If the block in the logical cluster doesn't align with the block in
2728 * the physical cluster...
2730 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2734 * If we cross a physical cluster boundary within a logical cluster...
2736 if (last_pblk && (lblk & cluster_mask) != 0 &&
2737 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2738 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2744 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2745 struct process_block_struct *pb,
2746 blk64_t start_block, blk64_t end_block,
2748 ext2_extent_handle_t ehandle,
2751 struct ext2fs_extent extent;
2752 blk64_t blk, last_lblk;
2754 int is_dir, is_leaf;
2756 struct ext2_extent_info info;
2757 int failed_csum = 0;
2759 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2762 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2765 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2766 !pb->eti.force_rebuild) {
2767 struct extent_tree_level *etl;
2769 etl = pb->eti.ext_info + info.curr_level;
2770 etl->num_extents += info.num_entries;
2771 etl->max_extents += info.max_entries;
2773 * Implementation wart: Splitting extent blocks when appending
2774 * will leave the old block with one free entry. Therefore
2775 * unless the node is totally full, pretend that a non-root
2776 * extent block can hold one fewer entry than it actually does,
2777 * so that we don't repeatedly rebuild the extent tree.
2779 if (info.curr_level && info.num_entries < info.max_entries)
2783 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2785 while ((pctx->errcode == 0 ||
2786 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2787 info.num_entries-- > 0) {
2788 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2789 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2790 last_lblk = extent.e_lblk + extent.e_len - 1;
2793 pctx->blk = extent.e_pblk;
2794 pctx->blk2 = extent.e_lblk;
2795 pctx->num = extent.e_len;
2796 pctx->blkcount = extent.e_lblk + extent.e_len;
2798 if (extent.e_pblk == 0 ||
2799 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2800 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2801 problem = PR_1_EXTENT_BAD_START_BLK;
2802 else if (extent.e_lblk < start_block)
2803 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2804 else if ((end_block && last_lblk > end_block) &&
2805 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2806 last_lblk > eof_block)))
2807 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2808 else if (is_leaf && extent.e_len == 0)
2809 problem = PR_1_EXTENT_LENGTH_ZERO;
2811 (extent.e_pblk + extent.e_len) >
2812 ext2fs_blocks_count(ctx->fs->super))
2813 problem = PR_1_EXTENT_ENDS_BEYOND;
2814 else if (is_leaf && is_dir &&
2815 ((extent.e_lblk + extent.e_len) >
2816 (1U << (21 - ctx->fs->super->s_log_block_size))))
2817 problem = PR_1_TOOBIG_DIR;
2819 if (is_leaf && problem == 0 && extent.e_len > 0) {
2821 printf("extent_region(ino=%u, expect=%llu, "
2822 "lblk=%llu, len=%u)\n",
2823 pb->ino, pb->next_lblock,
2824 extent.e_lblk, extent.e_len);
2826 if (extent.e_lblk < pb->next_lblock)
2827 problem = PR_1_EXTENT_COLLISION;
2828 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
2829 pb->next_lblock = extent.e_lblk + extent.e_len;
2833 * Uninitialized blocks in a directory? Clear the flag and
2834 * we'll interpret the blocks later.
2836 if (try_repairs && is_dir && problem == 0 &&
2837 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2838 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2839 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2840 pb->inode_modified = 1;
2841 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2848 if (try_repairs && problem) {
2850 if (fix_problem(ctx, problem, pctx)) {
2851 if (ctx->invalid_bitmaps) {
2853 * If fsck knows the bitmaps are bad,
2854 * skip to the next extent and
2855 * try to clear this extent again
2856 * after fixing the bitmaps, by
2859 pctx->errcode = ext2fs_extent_get(
2861 EXT2_EXTENT_NEXT_SIB,
2863 ctx->flags |= E2F_FLAG_RESTART_LATER;
2864 if (pctx->errcode ==
2865 EXT2_ET_NO_CURRENT_NODE) {
2871 e2fsck_read_bitmaps(ctx);
2872 pb->inode_modified = 1;
2874 ext2fs_extent_delete(ehandle, 0);
2875 if (pctx->errcode) {
2876 pctx->str = "ext2fs_extent_delete";
2879 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2880 if (pctx->errcode &&
2881 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2882 pctx->str = "ext2fs_extent_fix_parents";
2885 pctx->errcode = ext2fs_extent_get(ehandle,
2886 EXT2_EXTENT_CURRENT,
2888 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2899 blk64_t lblk = extent.e_lblk;
2900 int next_try_repairs = 1;
2902 blk = extent.e_pblk;
2905 * If this lower extent block collides with critical
2906 * metadata, don't try to repair the damage. Pass 1b
2907 * will reallocate the block; then we can try again.
2909 if (pb->ino != EXT2_RESIZE_INO &&
2910 extent.e_pblk < ctx->fs->super->s_blocks_count &&
2911 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2913 next_try_repairs = 0;
2916 PR_1_CRITICAL_METADATA_COLLISION,
2918 if ((ctx->options & E2F_OPT_NO) == 0)
2919 ctx->flags |= E2F_FLAG_RESTART_LATER;
2921 pctx->errcode = ext2fs_extent_get(ehandle,
2922 EXT2_EXTENT_DOWN, &extent);
2923 if (pctx->errcode &&
2924 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2925 pctx->str = "EXT2_EXTENT_DOWN";
2926 problem = PR_1_EXTENT_HEADER_INVALID;
2927 if (!next_try_repairs)
2929 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2930 goto report_problem;
2933 /* The next extent should match this index's logical start */
2934 if (extent.e_lblk != lblk) {
2935 struct ext2_extent_info e_info;
2937 ext2fs_extent_get_info(ehandle, &e_info);
2939 pctx->blk2 = extent.e_lblk;
2940 pctx->num = e_info.curr_level - 1;
2941 problem = PR_1_EXTENT_INDEX_START_INVALID;
2942 if (fix_problem(ctx, problem, pctx)) {
2943 pb->inode_modified = 1;
2945 ext2fs_extent_fix_parents(ehandle);
2946 if (pctx->errcode) {
2947 pctx->str = "ext2fs_extent_fix_parents";
2952 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2953 last_lblk, eof_block, ehandle,
2957 pctx->errcode = ext2fs_extent_get(ehandle,
2958 EXT2_EXTENT_UP, &extent);
2959 if (pctx->errcode) {
2960 pctx->str = "EXT2_EXTENT_UP";
2963 mark_block_used(ctx, blk);
2968 if ((pb->previous_block != 0) &&
2969 (pb->previous_block+1 != extent.e_pblk)) {
2970 if (ctx->options & E2F_OPT_FRAGCHECK) {
2975 else if (pb->is_reg)
2978 printf(("%6lu(%c): expecting %6lu "
2980 "phys %6lu log %lu len %lu\n"),
2981 (unsigned long) pctx->ino, type,
2982 (unsigned long) pb->previous_block+1,
2983 (unsigned long) extent.e_pblk,
2984 (unsigned long) extent.e_lblk,
2985 (unsigned long) extent.e_len);
2990 * If we notice a gap in the logical block mappings of an
2991 * extent-mapped directory, offer to close the hole by
2992 * moving the logical block down, otherwise we'll go mad in
2993 * pass 3 allocating empty directory blocks to fill the hole.
2995 if (try_repairs && is_dir &&
2996 pb->last_block + 1 < extent.e_lblk) {
2999 new_lblk = pb->last_block + 1;
3000 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3001 new_lblk = ((new_lblk +
3002 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3003 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3005 EXT2FS_CLUSTER_MASK(ctx->fs));
3006 pctx->blk = extent.e_lblk;
3007 pctx->blk2 = new_lblk;
3008 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3009 extent.e_lblk = new_lblk;
3010 pb->inode_modified = 1;
3011 pctx->errcode = ext2fs_extent_replace(ehandle,
3013 if (pctx->errcode) {
3017 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3019 goto failed_add_dir_block;
3020 pctx->errcode = ext2fs_extent_goto(ehandle,
3023 goto failed_add_dir_block;
3024 last_lblk = extent.e_lblk + extent.e_len - 1;
3030 while (++pb->last_db_block <
3031 (e2_blkcnt_t) extent.e_lblk) {
3032 pctx->errcode = ext2fs_add_dir_block2(
3036 if (pctx->errcode) {
3038 pctx->num = pb->last_db_block;
3039 goto failed_add_dir_block;
3043 for (i = 0; i < extent.e_len; i++) {
3044 pctx->errcode = ext2fs_add_dir_block2(
3049 if (pctx->errcode) {
3050 pctx->blk = extent.e_pblk + i;
3051 pctx->num = extent.e_lblk + i;
3052 failed_add_dir_block:
3053 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3054 /* Should never get here */
3055 ctx->flags |= E2F_FLAG_ABORT;
3059 if (extent.e_len > 0)
3060 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3062 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3066 for (i = 0; i < extent.e_len; i++) {
3067 pctx->blk = extent.e_lblk + i;
3068 pctx->blk2 = extent.e_pblk + i;
3069 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3070 mark_block_used(ctx, extent.e_pblk + i);
3071 mark_block_used(ctx, extent.e_pblk + i);
3076 * Check whether first cluster got marked in previous iteration.
3078 if (ctx->fs->cluster_ratio_bits &&
3079 pb->previous_block &&
3080 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3081 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3082 /* Set blk to the beginning of next cluster. */
3085 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3087 /* Set blk to the beginning of current cluster. */
3088 blk = EXT2FS_C2B(ctx->fs,
3089 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3091 if (blk < extent.e_pblk + extent.e_len) {
3092 mark_blocks_used(ctx, blk,
3093 extent.e_pblk + extent.e_len - blk);
3094 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3095 EXT2FS_CLUSTER_RATIO(ctx->fs));
3096 pb->num_blocks += n;
3098 pb->last_block = extent.e_lblk + extent.e_len - 1;
3099 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3100 start_block = pb->last_block = last_lblk;
3101 if (is_leaf && !is_dir &&
3102 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3103 pb->last_init_lblock = last_lblk;
3105 pctx->errcode = ext2fs_extent_get(ehandle,
3106 EXT2_EXTENT_NEXT_SIB,
3110 /* Failed csum but passes checks? Ask to fix checksum. */
3112 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3113 pb->inode_modified = 1;
3114 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3119 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3123 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3124 struct process_block_struct *pb)
3126 struct ext2_extent_info info;
3127 struct ext2_inode *inode = pctx->inode;
3128 ext2_extent_handle_t ehandle;
3129 ext2_filsys fs = ctx->fs;
3130 ext2_ino_t ino = pctx->ino;
3133 struct ext3_extent_header *eh;
3135 /* Check for a proper extent header... */
3136 eh = (struct ext3_extent_header *) &inode->i_block[0];
3137 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3139 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3140 e2fsck_clear_inode(ctx, ino, inode, 0,
3141 "check_blocks_extents");
3146 /* ...since this function doesn't fail if i_block is zeroed. */
3147 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3148 if (pctx->errcode) {
3149 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3150 e2fsck_clear_inode(ctx, ino, inode, 0,
3151 "check_blocks_extents");
3156 retval = ext2fs_extent_get_info(ehandle, &info);
3158 int max_depth = info.max_depth;
3160 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3161 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3162 ctx->extent_depth_count[max_depth]++;
3165 /* Check maximum extent depth */
3166 pctx->blk = info.max_depth;
3167 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
3168 if (pctx->blk2 < pctx->blk &&
3169 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
3170 pb->eti.force_rebuild = 1;
3172 /* Can we collect extent tree level stats? */
3173 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
3174 if (pctx->blk2 > pctx->blk)
3175 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
3176 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
3177 pb->eti.ino = pb->ino;
3179 pb->next_lblock = 0;
3181 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
3182 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
3183 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
3184 if (pctx->errcode &&
3185 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
3187 inode->i_blocks = 0;
3188 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3189 "check_blocks_extents");
3192 ext2fs_extent_free(ehandle);
3194 /* Rebuild unless it's a dir and we're rehashing it */
3195 if (LINUX_S_ISDIR(inode->i_mode) &&
3196 e2fsck_dir_will_be_rehashed(ctx, ino))
3199 if (ctx->options & E2F_OPT_CONVERT_BMAP)
3200 e2fsck_rebuild_extents_later(ctx, ino);
3202 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3206 * In fact we don't need to check blocks for an inode with inline data
3207 * because this inode doesn't have any blocks. In this function all
3208 * we need to do is add this inode into dblist when it is a directory.
3210 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3211 struct process_block_struct *pb)
3214 size_t inline_data_size = 0;
3221 /* Process the dirents in i_block[] as the "first" block. */
3222 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3226 /* Process the dirents in the EA as a "second" block. */
3227 flags = ctx->fs->flags;
3228 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3229 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3231 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3232 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3233 if (pctx->errcode) {
3238 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3241 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3249 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3250 ctx->flags |= E2F_FLAG_ABORT;
3254 * This subroutine is called on each inode to account for all of the
3255 * blocks used by that inode.
3257 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3258 char *block_buf, const struct ea_quota *ea_ibody_quota)
3260 ext2_filsys fs = ctx->fs;
3261 struct process_block_struct pb;
3262 ext2_ino_t ino = pctx->ino;
3263 struct ext2_inode *inode = pctx->inode;
3264 unsigned bad_size = 0;
3265 int dirty_inode = 0;
3269 struct ea_quota ea_block_quota;
3272 pb.num_blocks = EXT2FS_B2C(ctx->fs,
3273 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
3275 pb.last_init_lblock = -1;
3276 pb.last_db_block = -1;
3277 pb.num_illegal_blocks = 0;
3278 pb.suppress = 0; pb.clear = 0;
3281 pb.previous_block = 0;
3282 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3283 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3284 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3288 pb.inode_modified = 0;
3289 pb.eti.force_rebuild = 0;
3293 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3294 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3296 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
3297 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3299 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
3302 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3303 check_blocks_inline_data(ctx, pctx, &pb);
3304 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3305 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3306 check_blocks_extents(ctx, pctx, &pb);
3310 * If we've modified the inode, write it out before
3311 * iterate() tries to use it.
3314 e2fsck_write_inode(ctx, ino, inode,
3319 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3320 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3321 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3322 block_buf, process_block, &pb);
3324 * We do not have uninitialized extents in non extent
3327 pb.last_init_lblock = pb.last_block;
3329 * If iterate() changed a block mapping, we have to
3330 * re-read the inode. If we decide to clear the
3331 * inode after clearing some stuff, we'll re-write the
3332 * bad mappings into the inode!
3334 if (pb.inode_modified)
3335 e2fsck_read_inode(ctx, ino, inode,
3337 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3338 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3340 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3342 printf("bmap rebuild ino=%d\n", ino);
3344 if (!LINUX_S_ISDIR(inode->i_mode) ||
3345 !e2fsck_dir_will_be_rehashed(ctx, ino))
3346 e2fsck_rebuild_extents_later(ctx, ino);
3350 end_problem_latch(ctx, PR_LATCH_BLOCK);
3351 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3352 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3355 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3357 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3358 if (LINUX_S_ISDIR(inode->i_mode))
3359 ctx->fs_fragmented_dir++;
3361 ctx->fs_fragmented++;
3365 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3370 if (inode->i_flags & EXT2_INDEX_FL) {
3371 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3372 inode->i_flags &= ~EXT2_INDEX_FL;
3375 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3379 if (!pb.num_blocks && pb.is_dir &&
3380 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3381 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3382 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3383 ctx->fs_directory_count--;
3388 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3389 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
3390 !(inode->i_flags & EXT4_EA_INODE_FL)) {
3391 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3393 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
3394 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3395 ino, (ea_ibody_quota ?
3396 ea_ibody_quota->inodes : 0) +
3397 ea_block_quota.inodes + 1);
3400 if (!ext2fs_has_feature_huge_file(fs->super) ||
3401 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3402 pb.num_blocks *= (fs->blocksize / 512);
3403 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3405 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
3406 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3410 unsigned nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3411 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3416 flags = ctx->fs->flags;
3417 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3418 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3420 ctx->fs->flags = (flags &
3421 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3423 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3424 if (err || sz != inode->i_size) {
3428 } else if (inode->i_size & (fs->blocksize - 1))
3430 else if (nblock > (pb.last_block + 1))
3432 else if (nblock < (pb.last_block + 1)) {
3433 if (((pb.last_block + 1) - nblock) >
3434 fs->super->s_prealloc_dir_blocks)
3438 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3440 size = EXT2_I_SIZE(inode);
3441 if ((pb.last_init_lblock >= 0) &&
3442 /* allow allocated blocks to end of PAGE_SIZE */
3443 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3444 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3445 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3448 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3449 size > ext2_max_sizes[fs->super->s_log_block_size])
3450 /* too big for a direct/indirect-mapped file */
3452 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3454 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3455 /* too big for an extent-based file - 32bit ee_block */
3458 /* i_size for symlinks is checked elsewhere */
3459 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3460 /* Did inline_data set pctx->num earlier? */
3462 pctx->num = (pb.last_block + 1) * fs->blocksize;
3463 pctx->group = bad_size;
3464 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3465 if (LINUX_S_ISDIR(inode->i_mode))
3466 pctx->num &= 0xFFFFFFFFULL;
3467 ext2fs_inode_size_set(fs, inode, pctx->num);
3468 if (EXT2_I_SIZE(inode) == 0 &&
3469 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3470 memset(inode->i_block, 0,
3471 sizeof(inode->i_block));
3472 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3478 if (LINUX_S_ISREG(inode->i_mode) &&
3479 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3481 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
3482 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3483 (ext2fs_has_feature_huge_file(fs->super) &&
3484 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3485 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3486 pctx->num = pb.num_blocks;
3487 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3488 inode->i_blocks = pb.num_blocks;
3489 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3496 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3497 * a block mapped file, so rebuild it as an extent file. We can skip
3498 * symlinks because they're never rewritten.
3500 if (ext2fs_has_feature_bigalloc(fs->super) &&
3501 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3502 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3503 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3504 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3505 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3506 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3511 if (ctx->dirs_to_hash && pb.is_dir &&
3512 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3513 !(inode->i_flags & EXT2_INDEX_FL) &&
3514 ((inode->i_size / fs->blocksize) >= 3))
3515 e2fsck_rehash_dir_later(ctx, ino);
3519 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3524 * Helper function called by process block when an illegal block is
3525 * found. It returns a description about why the block is illegal
3527 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3531 static char problem[80];
3533 super = fs->super->s_first_data_block;
3534 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3535 if (block < super) {
3536 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3538 } else if (block >= ext2fs_blocks_count(fs->super)) {
3539 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3542 for (i = 0; i < fs->group_desc_count; i++) {
3543 if (block == super) {
3544 sprintf(problem, "is the superblock in group %d", i);
3547 if (block > super &&
3548 block <= (super + fs->desc_blocks)) {
3549 sprintf(problem, "is in the group descriptors "
3553 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3554 sprintf(problem, "is the block bitmap of group %d", i);
3557 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3558 sprintf(problem, "is the inode bitmap of group %d", i);
3561 if (block >= ext2fs_inode_table_loc(fs, i) &&
3562 (block < ext2fs_inode_table_loc(fs, i)
3563 + fs->inode_blocks_per_group)) {
3564 sprintf(problem, "is in the inode table of group %d",
3568 super += fs->super->s_blocks_per_group;
3575 * This is a helper function for check_blocks().
3577 static int process_block(ext2_filsys fs,
3579 e2_blkcnt_t blockcnt,
3580 blk64_t ref_block EXT2FS_ATTR((unused)),
3581 int ref_offset EXT2FS_ATTR((unused)),
3584 struct process_block_struct *p;
3585 struct problem_context *pctx;
3586 blk64_t blk = *block_nr;
3588 problem_t problem = 0;
3591 p = (struct process_block_struct *) priv_data;
3596 * For a directory, add logical block zero for processing even if it's
3597 * not mapped or we'll be perennially stuck with broken "." and ".."
3600 if (p->is_dir && blockcnt == 0 && blk == 0) {
3601 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3602 if (pctx->errcode) {
3604 pctx->num = blockcnt;
3605 goto failed_add_dir_block;
3614 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3619 * Simplistic fragmentation check. We merely require that the
3620 * file be contiguous. (Which can never be true for really
3621 * big files that are greater than a block group.)
3623 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3624 if (p->previous_block+1 != blk) {
3625 if (ctx->options & E2F_OPT_FRAGCHECK) {
3633 printf(_("%6lu(%c): expecting %6lu "
3634 "got phys %6lu (blkcnt %lld)\n"),
3635 (unsigned long) pctx->ino, type,
3636 (unsigned long) p->previous_block+1,
3637 (unsigned long) blk,
3644 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3645 problem = PR_1_TOOBIG_DIR;
3646 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3647 problem = PR_1_TOOBIG_REG;
3648 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3649 problem = PR_1_TOOBIG_SYMLINK;
3651 if (blk < fs->super->s_first_data_block ||
3652 blk >= ext2fs_blocks_count(fs->super))
3653 problem = PR_1_ILLEGAL_BLOCK_NUM;
3656 * If this IND/DIND/TIND block is squatting atop some critical metadata
3657 * (group descriptors, superblock, bitmap, inode table), any write to
3658 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3659 * fix that and restart fsck.
3662 p->ino != EXT2_RESIZE_INO &&
3663 blk < ctx->fs->super->s_blocks_count &&
3664 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3666 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3667 if ((ctx->options & E2F_OPT_NO) == 0)
3668 ctx->flags |= E2F_FLAG_RESTART_LATER;
3672 p->num_illegal_blocks++;
3674 * A bit of subterfuge here -- we're trying to fix a block
3675 * mapping, but the IND/DIND/TIND block could have collided
3676 * with some critical metadata. So, fix the in-core mapping so
3677 * iterate won't go insane, but return 0 instead of
3678 * BLOCK_CHANGED so that it won't write the remapping out to
3679 * our multiply linked block.
3681 * Even if we previously determined that an *IND block
3682 * conflicts with critical metadata, we must still try to
3683 * iterate the *IND block as if it is an *IND block to find and
3684 * mark the blocks it points to. Better to be overly cautious
3685 * with the used_blocks map so that we don't move the *IND
3686 * block to a block that's really in use!
3688 if (p->ino != EXT2_RESIZE_INO &&
3690 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3695 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3696 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3700 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3702 set_latch_flags(PR_LATCH_BLOCK,
3707 pctx->blkcount = blockcnt;
3708 if (fix_problem(ctx, problem, pctx)) {
3709 blk = *block_nr = 0;
3710 ret_code = BLOCK_CHANGED;
3711 p->inode_modified = 1;
3713 * If the directory block is too big and is beyond the
3714 * end of the FS, don't bother trying to add it for
3715 * processing -- the kernel would never have created a
3716 * directory this large, and we risk an ENOMEM abort.
3717 * In any case, the toobig handler for extent-based
3718 * directories also doesn't feed toobig blocks to
3721 if (problem == PR_1_TOOBIG_DIR)
3728 if (p->ino == EXT2_RESIZE_INO) {
3730 * The resize inode has already be sanity checked
3731 * during pass #0 (the superblock checks). All we
3732 * have to do is mark the double indirect block as
3733 * being in use; all of the other blocks are handled
3734 * by mark_table_blocks()).
3736 if (blockcnt == BLOCK_COUNT_DIND)
3737 mark_block_used(ctx, blk);
3739 } else if (!(ctx->fs->cluster_ratio_bits &&
3740 p->previous_block &&
3741 (EXT2FS_B2C(ctx->fs, blk) ==
3742 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3743 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3744 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3745 mark_block_used(ctx, blk);
3747 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3748 p->last_block, blk, blockcnt)) {
3749 pctx->blk = blockcnt;
3751 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3752 mark_block_used(ctx, blk);
3753 mark_block_used(ctx, blk);
3756 p->last_block = blockcnt;
3757 p->previous_block = blk;
3759 if (p->is_dir && (blockcnt >= 0)) {
3760 while (++p->last_db_block < blockcnt) {
3761 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3764 if (pctx->errcode) {
3766 pctx->num = p->last_db_block;
3767 goto failed_add_dir_block;
3770 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3772 if (pctx->errcode) {
3774 pctx->num = blockcnt;
3775 failed_add_dir_block:
3776 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3777 /* Should never get here */
3778 ctx->flags |= E2F_FLAG_ABORT;
3785 static int process_bad_block(ext2_filsys fs,
3787 e2_blkcnt_t blockcnt,
3788 blk64_t ref_block EXT2FS_ATTR((unused)),
3789 int ref_offset EXT2FS_ATTR((unused)),
3792 struct process_block_struct *p;
3793 blk64_t blk = *block_nr;
3794 blk64_t first_block;
3796 struct problem_context *pctx;
3802 p = (struct process_block_struct *) priv_data;
3806 pctx->ino = EXT2_BAD_INO;
3808 pctx->blkcount = blockcnt;
3810 if ((blk < fs->super->s_first_data_block) ||
3811 (blk >= ext2fs_blocks_count(fs->super))) {
3812 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3814 return BLOCK_CHANGED;
3820 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3822 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3824 return BLOCK_CHANGED;
3826 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3829 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3832 return BLOCK_CHANGED;
3834 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3837 mark_block_used(ctx, blk);
3841 printf ("DEBUG: Marking %u as bad.\n", blk);
3843 ctx->fs_badblocks_count++;
3845 * If the block is not used, then mark it as used and return.
3846 * If it is already marked as found, this must mean that
3847 * there's an overlap between the filesystem table blocks
3848 * (bitmaps and inode table) and the bad block list.
3850 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3851 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3855 * Try to find the where the filesystem block was used...
3857 first_block = fs->super->s_first_data_block;
3859 for (i = 0; i < fs->group_desc_count; i++ ) {
3862 if (!ext2fs_bg_has_super(fs, i))
3864 if (blk == first_block) {
3866 if (fix_problem(ctx,
3867 PR_1_BAD_PRIMARY_SUPERBLOCK,
3870 return BLOCK_CHANGED;
3874 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3877 if ((blk > first_block) &&
3878 (blk <= first_block + fs->desc_blocks)) {
3880 pctx->blk = *block_nr;
3881 if (fix_problem(ctx,
3882 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3884 return BLOCK_CHANGED;
3888 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3892 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3893 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3894 ctx->invalid_block_bitmap_flag[i]++;
3895 ctx->invalid_bitmaps++;
3899 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3900 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3901 ctx->invalid_inode_bitmap_flag[i]++;
3902 ctx->invalid_bitmaps++;
3906 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3907 (blk < (ext2fs_inode_table_loc(fs, i) +
3908 fs->inode_blocks_per_group))) {
3910 * If there are bad blocks in the inode table,
3911 * the inode scan code will try to do
3912 * something reasonable automatically.
3916 first_block += fs->super->s_blocks_per_group;
3919 * If we've gotten to this point, then the only
3920 * possibility is that the bad block inode meta data
3921 * is using a bad block.
3923 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3924 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3925 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3927 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3929 return BLOCK_CHANGED;
3931 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3938 /* Warn user that the block wasn't claimed */
3939 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3944 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3945 const char *name, int num, blk64_t *new_block)
3947 ext2_filsys fs = ctx->fs;
3949 blk64_t old_block = *new_block;
3952 unsigned flexbg_size;
3955 struct problem_context pctx;
3957 clear_problem_context(&pctx);
3960 pctx.blk = old_block;
3964 * For flex_bg filesystems, first try to allocate the metadata
3965 * within the flex_bg, and if that fails then try finding the
3966 * space anywhere in the filesystem.
3968 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3970 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3971 flexbg = group / flexbg_size;
3972 first_block = ext2fs_group_first_block2(fs,
3973 flexbg_size * flexbg);
3974 last_grp = group | (flexbg_size - 1);
3975 if (last_grp >= fs->group_desc_count)
3976 last_grp = fs->group_desc_count - 1;
3977 last_block = ext2fs_group_last_block2(fs, last_grp);
3979 last_block = ext2fs_group_last_block2(fs, group);
3980 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3981 num, ctx->block_found_map,
3983 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3984 pctx.errcode = ext2fs_get_free_blocks2(fs,
3985 fs->super->s_first_data_block,
3986 ext2fs_blocks_count(fs->super),
3987 num, ctx->block_found_map, new_block);
3990 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3991 ext2fs_unmark_valid(fs);
3992 ctx->flags |= E2F_FLAG_ABORT;
3995 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
3997 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
3998 ext2fs_unmark_valid(fs);
3999 ctx->flags |= E2F_FLAG_ABORT;
4002 ext2fs_mark_super_dirty(fs);
4003 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4004 pctx.blk2 = *new_block;
4005 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4006 PR_1_RELOC_TO), &pctx);
4008 for (i = 0; i < num; i++) {
4010 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4012 pctx.errcode = io_channel_read_blk64(fs->io,
4013 old_block + i, 1, buf);
4015 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4016 pctx.blk = (*new_block) + i;
4017 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4020 pctx.blk = (*new_block) + i;
4021 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4026 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4028 ext2fs_free_mem(&buf);
4032 * This routine gets called at the end of pass 1 if bad blocks are
4033 * detected in the superblock, group descriptors, inode_bitmaps, or
4034 * block bitmaps. At this point, all of the blocks have been mapped
4035 * out, so we can try to allocate new block(s) to replace the bad
4038 static void handle_fs_bad_blocks(e2fsck_t ctx)
4040 ext2_filsys fs = ctx->fs;
4042 blk64_t first_block;
4045 for (i = 0; i < fs->group_desc_count; i++) {
4046 first_block = ext2fs_group_first_block2(fs, i);
4048 if (ctx->invalid_block_bitmap_flag[i]) {
4049 new_blk = ext2fs_block_bitmap_loc(fs, i);
4050 new_table_block(ctx, first_block, i, _("block bitmap"),
4052 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4054 if (ctx->invalid_inode_bitmap_flag[i]) {
4055 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4056 new_table_block(ctx, first_block, i, _("inode bitmap"),
4058 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4060 if (ctx->invalid_inode_table_flag[i]) {
4061 new_blk = ext2fs_inode_table_loc(fs, i);
4062 new_table_block(ctx, first_block, i, _("inode table"),
4063 fs->inode_blocks_per_group,
4065 ext2fs_inode_table_loc_set(fs, i, new_blk);
4066 ctx->flags |= E2F_FLAG_RESTART;
4069 ctx->invalid_bitmaps = 0;
4073 * This routine marks all blocks which are used by the superblock,
4074 * group descriptors, inode bitmaps, and block bitmaps.
4076 static void mark_table_blocks(e2fsck_t ctx)
4078 ext2_filsys fs = ctx->fs;
4082 struct problem_context pctx;
4084 clear_problem_context(&pctx);
4086 for (i = 0; i < fs->group_desc_count; i++) {
4089 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4090 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4093 * Mark the blocks used for the inode table
4095 if (ext2fs_inode_table_loc(fs, i)) {
4096 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4097 j < fs->inode_blocks_per_group;
4099 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4102 if (!ctx->invalid_inode_table_flag[i] &&
4104 PR_1_ITABLE_CONFLICT, &pctx)) {
4105 ctx->invalid_inode_table_flag[i]++;
4106 ctx->invalid_bitmaps++;
4109 ext2fs_mark_block_bitmap2(
4110 ctx->block_found_map, b);
4111 ext2fs_mark_block_bitmap2(
4112 ctx->block_metadata_map, b);
4118 * Mark block used for the block bitmap
4120 if (ext2fs_block_bitmap_loc(fs, i)) {
4121 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4122 ext2fs_block_bitmap_loc(fs, i))) {
4123 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4124 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4125 ctx->invalid_block_bitmap_flag[i]++;
4126 ctx->invalid_bitmaps++;
4129 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4130 ext2fs_block_bitmap_loc(fs, i));
4131 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4132 ext2fs_block_bitmap_loc(fs, i));
4136 * Mark block used for the inode bitmap
4138 if (ext2fs_inode_bitmap_loc(fs, i)) {
4139 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4140 ext2fs_inode_bitmap_loc(fs, i))) {
4141 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4142 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4143 ctx->invalid_inode_bitmap_flag[i]++;
4144 ctx->invalid_bitmaps++;
4147 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4148 ext2fs_inode_bitmap_loc(fs, i));
4149 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4150 ext2fs_inode_bitmap_loc(fs, i));
4157 * These subroutines short circuits ext2fs_get_blocks and
4158 * ext2fs_check_directory; we use them since we already have the inode
4159 * structure, so there's no point in letting the ext2fs library read
4162 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4165 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4168 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4169 return EXT2_ET_CALLBACK_NOTHANDLED;
4171 for (i=0; i < EXT2_N_BLOCKS; i++)
4172 blocks[i] = ctx->stashed_inode->i_block[i];
4176 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
4177 struct ext2_inode *inode)
4179 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4181 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4182 return EXT2_ET_CALLBACK_NOTHANDLED;
4183 *inode = *ctx->stashed_inode;
4187 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
4188 struct ext2_inode *inode)
4190 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4192 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
4193 (inode != ctx->stashed_inode))
4194 *ctx->stashed_inode = *inode;
4195 return EXT2_ET_CALLBACK_NOTHANDLED;
4198 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
4200 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4202 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4203 return EXT2_ET_CALLBACK_NOTHANDLED;
4205 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4206 return EXT2_ET_NO_DIRECTORY;
4210 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4213 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4217 if (ctx->block_found_map) {
4218 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4222 if (fs->block_map) {
4223 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4224 ext2fs_mark_bb_dirty(fs);
4227 if (!fs->block_map) {
4228 retval = ext2fs_read_block_bitmap(fs);
4233 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4242 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4243 blk64_t len, blk64_t *pblk, blk64_t *plen)
4245 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4248 if (ctx->block_found_map)
4249 return ext2fs_new_range(fs, flags, goal, len,
4250 ctx->block_found_map, pblk, plen);
4252 if (!fs->block_map) {
4253 retval = ext2fs_read_block_bitmap(fs);
4258 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4262 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4264 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4266 /* Never free a critical metadata block */
4267 if (ctx->block_found_map &&
4268 ctx->block_metadata_map &&
4270 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4273 if (ctx->block_found_map) {
4275 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4277 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4281 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4282 blk_t num, int inuse)
4284 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4286 /* Never free a critical metadata block */
4287 if (ctx->block_found_map &&
4288 ctx->block_metadata_map &&
4290 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4293 if (ctx->block_found_map) {
4295 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4298 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4303 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4305 ext2_filsys fs = ctx->fs;
4307 if (use_shortcuts) {
4308 fs->get_blocks = pass1_get_blocks;
4309 fs->check_directory = pass1_check_directory;
4310 fs->read_inode = pass1_read_inode;
4311 fs->write_inode = pass1_write_inode;
4312 ctx->stashed_ino = 0;
4315 fs->check_directory = 0;
4317 fs->write_inode = 0;
4321 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4323 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4324 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4325 e2fsck_block_alloc_stats, 0);
4326 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4327 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4328 e2fsck_block_alloc_stats_range, NULL);