2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which inodes are casefolded. (inode_casefold_map)
27 * - A bitmap of which blocks are in use. (block_found_map)
28 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
29 * - The data blocks of the directory inodes. (dir_map)
30 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * - The encryption policy ID of each encrypted inode. (encrypted_files)
33 * Pass 1 is designed to stash away enough information so that the
34 * other passes should not need to read in the inode information
35 * during the normal course of a filesystem check. (Although if an
36 * inconsistency is detected, other passes may need to read in an
39 * Note that pass 1B will be invoked if there are any duplicate blocks
43 #define _GNU_SOURCE 1 /* get strnlen() */
56 #include <ext2fs/ext2_ext_attr.h>
57 /* todo remove this finally */
58 #include <ext2fs/ext2fsP.h>
63 #ifdef NO_INLINE_FUNCS
66 #define _INLINE_ inline
76 static int process_block(ext2_filsys fs, blk64_t *blocknr,
77 e2_blkcnt_t blockcnt, blk64_t ref_blk,
78 int ref_offset, void *priv_data);
79 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
80 e2_blkcnt_t blockcnt, blk64_t ref_blk,
81 int ref_offset, void *priv_data);
82 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
84 const struct ea_quota *ea_ibody_quota);
85 static void mark_table_blocks(e2fsck_t ctx);
86 static void alloc_bb_map(e2fsck_t ctx);
87 static void alloc_imagic_map(e2fsck_t ctx);
88 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
89 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino);
90 static void handle_fs_bad_blocks(e2fsck_t ctx);
91 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
92 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
93 dgrp_t group, void * priv_data);
94 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
95 char *block_buf, int adjust_sign);
96 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
98 struct process_block_struct {
100 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
101 fragmented:1, compressed:1, bbcheck:1,
106 e2_blkcnt_t last_init_lblock;
107 e2_blkcnt_t last_db_block;
108 int num_illegal_blocks;
109 blk64_t previous_block;
110 struct ext2_inode *inode;
111 struct problem_context *pctx;
112 ext2fs_block_bitmap fs_meta_blocks;
115 struct extent_tree_info eti;
118 struct process_inode_block {
120 struct ea_quota ea_ibody_quota;
121 struct ext2_inode_large inode;
124 struct scan_callback_struct {
127 struct process_inode_block *inodes_to_process;
128 int *process_inode_count;
131 static void process_inodes(e2fsck_t ctx, char *block_buf,
132 struct process_inode_block *inodes_to_process,
133 int *process_inode_count);
135 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
136 EXT2_MIN_BLOCK_LOG_SIZE + 1];
139 * Check to make sure a device inode is real. Returns 1 if the device
140 * checks out, 0 if not.
142 * Note: this routine is now also used to check FIFO's and Sockets,
143 * since they have the same requirement; the i_block fields should be
146 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
147 struct ext2_inode *inode)
152 * If the index or extents flag is set, then this is a bogus
155 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
159 * We should be able to do the test below all the time, but
160 * because the kernel doesn't forcibly clear the device
161 * inode's additional i_block fields, there are some rare
162 * occasions when a legitimate device inode will have non-zero
163 * additional i_block fields. So for now, we only complain
164 * when the immutable flag is set, which should never happen
165 * for devices. (And that's when the problem is caused, since
166 * you can't set or clear immutable flags for devices.) Once
167 * the kernel has been fixed we can change this...
169 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
170 for (i=4; i < EXT2_N_BLOCKS; i++)
171 if (inode->i_block[i])
178 * Check to make sure a symlink inode is real. Returns 1 if the symlink
179 * checks out, 0 if not.
181 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
182 struct ext2_inode *inode, char *buf)
187 if ((inode->i_size_high || inode->i_size == 0) ||
188 (inode->i_flags & EXT2_INDEX_FL))
191 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
194 if (inode->i_flags & EXT4_EXTENTS_FL)
196 if (ext2fs_inline_data_size(fs, ino, &inline_size))
198 if (inode->i_size != inline_size)
204 if (ext2fs_is_fast_symlink(inode)) {
205 if (inode->i_flags & EXT4_EXTENTS_FL)
207 buf = (char *)inode->i_block;
208 buflen = sizeof(inode->i_block);
210 ext2_extent_handle_t handle;
211 struct ext2_extent_info info;
212 struct ext2fs_extent extent;
216 if (inode->i_flags & EXT4_EXTENTS_FL) {
217 if (ext2fs_extent_open2(fs, ino, inode, &handle))
219 if (ext2fs_extent_get_info(handle, &info) ||
220 (info.num_entries != 1) ||
221 (info.max_depth != 0)) {
222 ext2fs_extent_free(handle);
225 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
227 (extent.e_lblk != 0) ||
228 (extent.e_len != 1)) {
229 ext2fs_extent_free(handle);
233 ext2fs_extent_free(handle);
235 blk = inode->i_block[0];
237 for (i = 1; i < EXT2_N_BLOCKS; i++)
238 if (inode->i_block[i])
242 if (blk < fs->super->s_first_data_block ||
243 blk >= ext2fs_blocks_count(fs->super))
246 if (io_channel_read_blk64(fs->io, blk, 1, buf))
249 buflen = fs->blocksize;
252 if (inode->i_flags & EXT4_ENCRYPT_FL)
253 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
255 len = strnlen(buf, buflen);
260 if (len != inode->i_size)
266 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
268 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
269 static void check_extents_inlinedata(e2fsck_t ctx,
270 struct problem_context *pctx)
272 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
275 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
278 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
279 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
281 #undef BAD_SPECIAL_FLAGS
284 * If the immutable (or append-only) flag is set on the inode, offer
287 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
288 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
301 * If device, fifo or socket, check size is zero -- if not offer to
304 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
306 struct ext2_inode *inode = pctx->inode;
308 if (EXT2_I_SIZE(inode) == 0)
311 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
314 ext2fs_inode_size_set(ctx->fs, inode, 0);
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * For a given size, calculate how many blocks would be charged towards quota.
321 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
325 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
326 return EXT2FS_C2B(fs, clusters);
330 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
333 static problem_t check_large_ea_inode(e2fsck_t ctx,
334 struct ext2_ext_attr_entry *entry,
335 struct problem_context *pctx,
336 blk64_t *quota_blocks)
338 struct ext2_inode inode;
342 /* Check if inode is within valid range */
343 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
344 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
345 pctx->num = entry->e_value_inum;
346 return PR_1_ATTR_VALUE_EA_INODE;
349 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
351 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
353 com_err("check_large_ea_inode", retval,
354 _("while hashing entry with e_value_inum = %u"),
355 entry->e_value_inum);
359 if (hash == entry->e_hash) {
360 *quota_blocks = size_to_quota_blocks(ctx->fs,
361 entry->e_value_size);
363 /* This might be an old Lustre-style ea_inode reference. */
364 if (inode.i_mtime == pctx->ino &&
365 inode.i_generation == pctx->inode->i_generation) {
368 /* If target inode is also missing EA_INODE flag,
369 * this is likely to be a bad reference.
371 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
372 pctx->num = entry->e_value_inum;
373 return PR_1_ATTR_VALUE_EA_INODE;
375 pctx->num = entry->e_hash;
376 return PR_1_ATTR_HASH;
381 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
382 pctx->num = entry->e_value_inum;
383 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
384 inode.i_flags |= EXT4_EA_INODE_FL;
385 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
388 return PR_1_ATTR_NO_EA_INODE_FL;
394 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
395 struct ext2_ext_attr_entry *first, void *end)
397 struct ext2_ext_attr_entry *entry;
400 (void *)entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry);
401 entry = EXT2_EXT_ATTR_NEXT(entry)) {
402 if (!entry->e_value_inum)
404 if (!ctx->ea_inode_refs) {
405 pctx->errcode = ea_refcount_create(0,
406 &ctx->ea_inode_refs);
409 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
410 ctx->flags |= E2F_FLAG_ABORT;
414 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
419 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
420 struct ea_quota *ea_ibody_quota)
422 struct ext2_super_block *sb = ctx->fs->super;
423 struct ext2_inode_large *inode;
424 struct ext2_ext_attr_entry *entry;
425 char *start, *header, *end;
426 unsigned int storage_size, remain;
427 problem_t problem = 0;
430 ea_ibody_quota->blocks = 0;
431 ea_ibody_quota->inodes = 0;
433 inode = (struct ext2_inode_large *) pctx->inode;
434 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
435 inode->i_extra_isize;
436 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
437 inode->i_extra_isize;
438 end = header + storage_size;
439 start = header + sizeof(__u32);
440 entry = (struct ext2_ext_attr_entry *) start;
442 /* scan all entry's headers first */
444 /* take finish entry 0UL into account */
445 remain = storage_size - sizeof(__u32);
447 region = region_create(0, storage_size);
449 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
451 ctx->flags |= E2F_FLAG_ABORT;
454 if (region_allocate(region, 0, sizeof(__u32))) {
455 problem = PR_1_INODE_EA_ALLOC_COLLISION;
459 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
460 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
463 if (region_allocate(region, (char *)entry - (char *)header,
464 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
465 problem = PR_1_INODE_EA_ALLOC_COLLISION;
469 /* header eats this space */
470 remain -= sizeof(struct ext2_ext_attr_entry);
472 /* is attribute name valid? */
473 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
474 pctx->num = entry->e_name_len;
475 problem = PR_1_ATTR_NAME_LEN;
479 /* attribute len eats this space */
480 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
482 if (entry->e_value_inum == 0) {
483 /* check value size */
484 if (entry->e_value_size > remain) {
485 pctx->num = entry->e_value_size;
486 problem = PR_1_ATTR_VALUE_SIZE;
490 if (entry->e_value_size &&
491 region_allocate(region,
492 sizeof(__u32) + entry->e_value_offs,
494 entry->e_value_size))) {
495 problem = PR_1_INODE_EA_ALLOC_COLLISION;
499 hash = ext2fs_ext_attr_hash_entry(entry,
500 start + entry->e_value_offs);
502 /* e_hash may be 0 in older inode's ea */
503 if (entry->e_hash != 0 && entry->e_hash != hash) {
504 pctx->num = entry->e_hash;
505 problem = PR_1_ATTR_HASH;
509 blk64_t quota_blocks;
511 problem = check_large_ea_inode(ctx, entry, pctx,
516 ea_ibody_quota->blocks += quota_blocks;
517 ea_ibody_quota->inodes++;
520 /* If EA value is stored in external inode then it does not
521 * consume space here */
522 if (entry->e_value_inum == 0)
523 remain -= entry->e_value_size;
525 entry = EXT2_EXT_ATTR_NEXT(entry);
528 if (region_allocate(region, (char *)entry - (char *)header,
530 problem = PR_1_INODE_EA_ALLOC_COLLISION;
537 * it seems like a corruption. it's very unlikely we could repair
538 * EA(s) in automatic fashion -bzzz
540 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
541 inc_ea_inode_refs(ctx, pctx,
542 (struct ext2_ext_attr_entry *)start, end);
546 /* simply remove all possible EA(s) */
547 *((__u32 *)header) = 0UL;
548 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
549 EXT2_INODE_SIZE(sb), "pass1");
550 ea_ibody_quota->blocks = 0;
551 ea_ibody_quota->inodes = 0;
554 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
555 return (xtime & (1U << 31)) != 0 &&
556 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
559 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
560 check_inode_extra_negative_epoch(inode->i_##xtime, \
561 inode->i_##xtime##_extra)
563 /* When today's date is earlier than 2242, we assume that atimes,
564 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
565 * actually pre-1970 dates mis-encoded.
567 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
569 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
570 struct ea_quota *ea_ibody_quota)
572 struct ext2_super_block *sb = ctx->fs->super;
573 struct ext2_inode_large *inode;
577 ea_ibody_quota->blocks = 0;
578 ea_ibody_quota->inodes = 0;
580 inode = (struct ext2_inode_large *) pctx->inode;
581 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
582 /* this isn't large inode. so, nothing to check */
587 printf("inode #%u, i_extra_size %d\n", pctx->ino,
588 inode->i_extra_isize);
590 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
591 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
592 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
594 * For now we will allow i_extra_isize to be 0, but really
595 * implementations should never allow i_extra_isize to be 0
597 if (inode->i_extra_isize &&
598 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
599 inode->i_extra_isize & 3)) {
600 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
602 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
603 inode->i_extra_isize = sb->s_want_extra_isize;
605 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
606 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
607 EXT2_INODE_SIZE(sb), "pass1");
610 /* check if there is no place for an EA header */
611 if (inode->i_extra_isize >= max - sizeof(__u32))
614 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
615 inode->i_extra_isize);
616 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
617 /* it seems inode has an extended attribute(s) in body */
618 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
622 * If the inode's extended atime (ctime, crtime, mtime) is stored in
623 * the old, invalid format, repair it.
625 if (((sizeof(time_t) <= 4) ||
626 (((sizeof(time_t) > 4) &&
627 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
628 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
629 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
630 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
631 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
633 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
636 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
637 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
638 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
639 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
640 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
641 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
642 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
643 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
644 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
645 EXT2_INODE_SIZE(sb), "pass1");
651 * Check to see if the inode might really be a directory, despite i_mode
653 * This is a lot of complexity for something for which I'm not really
654 * convinced happens frequently in the wild. If for any reason this
655 * causes any problems, take this code out.
656 * [tytso:20070331.0827EDT]
658 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
661 struct ext2_inode *inode = pctx->inode;
662 struct ext2_dir_entry *dirent;
665 unsigned int i, rec_len, not_device = 0;
670 * If the mode looks OK, we believe it. If the first block in
671 * the i_block array is 0, this cannot be a directory. If the
672 * inode is extent-mapped, it is still the case that the latter
673 * cannot be 0 - the magic number in the extent header would make
676 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
677 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
681 * Check the block numbers in the i_block array for validity:
682 * zero blocks are skipped (but the first one cannot be zero -
683 * see above), other blocks are checked against the first and
684 * max data blocks (from the the superblock) and against the
685 * block bitmap. Any invalid block found means this cannot be
688 * If there are non-zero blocks past the fourth entry, then
689 * this cannot be a device file: we remember that for the next
692 * For extent mapped files, we don't do any sanity checking:
693 * just try to get the phys block of logical block 0 and run
696 * For inline data files, we just try to get the size of inline
697 * data. If it's true, we will treat it as a directory.
700 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
701 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
702 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
705 unsigned int rec_len2;
706 struct ext2_dir_entry de;
708 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
711 * If the size isn't a multiple of 4, it's probably not a
717 * If the first 10 bytes don't look like a directory entry,
718 * it's probably not a directory.
720 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
721 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
722 EXT2_DIR_REC_LEN(0));
723 dotdot = ext2fs_le32_to_cpu(dotdot);
724 de.inode = ext2fs_le32_to_cpu(de.inode);
725 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
726 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
727 if (dotdot >= ctx->fs->super->s_inodes_count ||
728 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
729 dotdot != EXT2_ROOT_INO) ||
730 de.inode >= ctx->fs->super->s_inodes_count ||
731 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
733 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
734 EXT4_INLINE_DATA_DOTDOT_SIZE)
736 /* device files never have a "system.data" entry */
738 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
740 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
743 /* device files are never extent mapped */
746 for (i=0; i < EXT2_N_BLOCKS; i++) {
747 blk = inode->i_block[i];
753 if (blk < ctx->fs->super->s_first_data_block ||
754 blk >= ext2fs_blocks_count(ctx->fs->super) ||
755 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
757 return; /* Invalid block, can't be dir */
759 blk = inode->i_block[0];
763 * If the mode says this is a device file and the i_links_count field
764 * is sane and we have not ruled it out as a device file previously,
765 * we declare it a device file, not a directory.
767 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
768 (inode->i_links_count == 1) && !not_device)
771 /* read the first block */
772 ehandler_operation(_("reading directory block"));
773 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
774 ehandler_operation(0);
778 dirent = (struct ext2_dir_entry *) buf;
779 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
782 if ((ext2fs_dirent_name_len(dirent) != 1) ||
783 (dirent->name[0] != '.') ||
784 (dirent->inode != pctx->ino) ||
787 (rec_len >= ctx->fs->blocksize - 12))
790 dirent = (struct ext2_dir_entry *) (buf + rec_len);
791 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
794 if ((ext2fs_dirent_name_len(dirent) != 2) ||
795 (dirent->name[0] != '.') ||
796 (dirent->name[1] != '.') ||
802 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
803 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
804 e2fsck_write_inode_full(ctx, pctx->ino, inode,
805 EXT2_INODE_SIZE(ctx->fs->super),
806 "check_is_really_dir");
810 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
811 int flags, ext2_icount_t hint,
814 unsigned int threshold;
815 unsigned int save_type;
823 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
825 profile_get_uint(ctx->profile, "scratch_files",
826 "numdirs_threshold", 0, 0, &threshold);
827 profile_get_boolean(ctx->profile, "scratch_files",
828 "icount", 0, 1, &enable);
830 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
832 num_dirs = 1024; /* Guess */
834 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
835 (!threshold || num_dirs > threshold)) {
836 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
841 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
843 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
844 flags |= EXT2_ICOUNT_OPT_FULLMAP;
845 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
846 ctx->fs->default_bitmap_type = save_type;
850 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
852 struct problem_context *pctx)
855 struct ext2_inode_large inode;
858 * Reread inode. If we don't see checksum error, then this inode
859 * has been fixed elsewhere.
861 ctx->stashed_ino = 0;
862 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
864 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
870 * Checksum still doesn't match. That implies that the inode passes
871 * all the sanity checks, so maybe the checksum is simply corrupt.
872 * See if the user will go for fixing that.
874 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
877 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
882 static void reserve_block_for_root_repair(e2fsck_t ctx)
886 ext2_filsys fs = ctx->fs;
888 ctx->root_repair_block = 0;
889 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
892 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
895 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
896 ctx->root_repair_block = blk;
899 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
903 ext2_filsys fs = ctx->fs;
904 static const char name[] = "lost+found";
907 ctx->lnf_repair_block = 0;
908 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
911 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
914 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
915 ctx->lnf_repair_block = blk;
918 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
922 struct ext2_xattr_handle *handle;
925 retval = ext2fs_xattrs_open(fs, ino, &handle);
929 retval = ext2fs_xattrs_read(handle);
933 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
938 (void) ext2fs_xattrs_close(&handle);
942 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
943 struct problem_context *pctx,
950 * If the inode failed the checksum and the user didn't
951 * clear the inode, test the checksum again -- if it still
952 * fails, ask the user if the checksum should be corrected.
954 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
956 ctx->flags |= E2F_FLAG_ABORT;
958 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
960 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
961 if ((ctx)->flags & E2F_FLAG_ABORT) \
965 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
970 for (i = 0; i < EXT2_N_BLOCKS; i++) {
971 x = inode->i_block[i];
972 #ifdef WORDS_BIGENDIAN
973 x = ext2fs_swab32(x);
975 if (x >= ext2fs_blocks_count(fs->super))
983 * Figure out what to do with an inode that has both extents and inline data
984 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
986 static int fix_inline_data_extents_file(e2fsck_t ctx,
988 struct ext2_inode *inode,
990 struct problem_context *pctx)
992 size_t max_inline_ea_size;
993 ext2_filsys fs = ctx->fs;
996 /* Both feature flags not set? Just run the regular checks */
997 if (!ext2fs_has_feature_extents(fs->super) &&
998 !ext2fs_has_feature_inline_data(fs->super))
1001 /* Clear both flags if it's a special file */
1002 if (LINUX_S_ISCHR(inode->i_mode) ||
1003 LINUX_S_ISBLK(inode->i_mode) ||
1004 LINUX_S_ISFIFO(inode->i_mode) ||
1005 LINUX_S_ISSOCK(inode->i_mode)) {
1006 check_extents_inlinedata(ctx, pctx);
1010 /* If it looks like an extent tree, try to clear inlinedata */
1011 if (ext2fs_extent_header_verify(inode->i_block,
1012 sizeof(inode->i_block)) == 0 &&
1013 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1014 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1019 /* If it looks short enough to be inline data, try to clear extents */
1020 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1021 max_inline_ea_size = inode_size -
1022 (EXT2_GOOD_OLD_INODE_SIZE +
1023 ((struct ext2_inode_large *)inode)->i_extra_isize);
1025 max_inline_ea_size = 0;
1026 if (EXT2_I_SIZE(inode) <
1027 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1028 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1029 inode->i_flags &= ~EXT4_EXTENTS_FL;
1035 * Too big for inline data, but no evidence of extent tree -
1036 * maybe it's a block map file? If the mappings all look valid?
1038 if (could_be_block_map(fs, inode) &&
1039 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1040 #ifdef WORDS_BIGENDIAN
1043 for (i = 0; i < EXT2_N_BLOCKS; i++)
1044 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1047 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1052 /* Oh well, just clear the busted inode. */
1053 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1054 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1060 e2fsck_write_inode(ctx, ino, inode, "pass1");
1065 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1067 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1068 dgrp_t start = *group, grp;
1069 blk64_t blocks_to_read = 0;
1070 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1072 if (ctx->readahead_kb == 0)
1075 /* Keep iterating groups until we have enough to readahead */
1076 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1077 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1078 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1080 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1081 ext2fs_bg_itable_unused(ctx->fs, grp);
1082 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1084 if (blocks_to_read * ctx->fs->blocksize >
1085 ctx->readahead_kb * 1024)
1089 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1091 if (err == EAGAIN) {
1092 ctx->readahead_kb /= 2;
1098 /* Error; disable itable readahead */
1099 *group = ctx->fs->group_desc_count;
1100 *next_ino = ctx->fs->super->s_inodes_count;
1103 * Don't do more readahead until we've reached the first inode
1104 * of the last inode scan buffer block for the last group.
1107 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1108 ctx->inode_buffer_blocks :
1109 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1110 ctx->fs->blocksize /
1111 EXT2_INODE_SIZE(ctx->fs->super);
1113 *next_ino = inodes_in_group -
1114 (inodes_in_group % inodes_per_buffer) + 1 +
1115 (grp * ctx->fs->super->s_inodes_per_group);
1120 * Check if the passed ino is one of the used superblock quota inodes.
1122 * Before the quota inodes were journaled, older superblock quota inodes
1123 * were just regular files in the filesystem and not reserved inodes. This
1124 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1125 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1127 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1129 enum quota_type qtype;
1131 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1132 if (*quota_sb_inump(sb, qtype) == ino)
1139 * Check if the passed ino is one of the reserved quota inodes.
1140 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1141 * inodes. These inodes may or may not be in use by the quota feature.
1143 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1145 enum quota_type qtype;
1147 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1148 if (quota_type2inum(qtype, fs->super) == ino)
1154 static int e2fsck_should_abort(e2fsck_t ctx)
1156 e2fsck_t global_ctx;
1158 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1161 if (ctx->global_ctx) {
1162 global_ctx = ctx->global_ctx;
1163 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1169 void e2fsck_pass1_run(e2fsck_t ctx)
1172 ext2_filsys fs = ctx->fs;
1174 struct ext2_inode *inode = NULL;
1175 ext2_inode_scan scan = NULL;
1176 char *block_buf = NULL;
1177 #ifdef RESOURCE_TRACK
1178 struct resource_track rtrack;
1180 unsigned char frag, fsize;
1181 struct problem_context pctx;
1182 struct scan_callback_struct scan_struct;
1183 struct ext2_super_block *sb = ctx->fs->super;
1185 const char *eop_next_inode = _("getting next inode from scan");
1186 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1187 int low_dtime_check = 1;
1188 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1189 unsigned int bufsize;
1190 int failed_csum = 0;
1191 ext2_ino_t ino_threshold = 0;
1192 dgrp_t ra_group = 0;
1193 struct ea_quota ea_ibody_quota;
1194 struct process_inode_block *inodes_to_process;
1195 int process_inode_count;
1197 init_resource_track(&rtrack, ctx->fs->io);
1198 clear_problem_context(&pctx);
1200 /* If we can do readahead, figure out how many groups to pull in. */
1201 if (!e2fsck_can_readahead(ctx->fs))
1202 ctx->readahead_kb = 0;
1203 else if (ctx->readahead_kb == ~0ULL)
1204 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1205 pass1_readahead(ctx, &ra_group, &ino_threshold);
1207 if (!(ctx->options & E2F_OPT_PREEN))
1208 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1210 if (ext2fs_has_feature_dir_index(fs->super) &&
1211 !(ctx->options & E2F_OPT_NO)) {
1212 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1213 ctx->dirs_to_hash = 0;
1217 mtrace_print("Pass 1");
1220 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1221 extent_fs = ext2fs_has_feature_extents(sb);
1222 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1223 casefold_fs = ext2fs_has_feature_casefold(sb);
1226 * Allocate bitmaps structures
1228 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1229 EXT2FS_BMAP64_RBTREE,
1231 &ctx->inode_used_map);
1234 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1235 ctx->flags |= E2F_FLAG_ABORT;
1238 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1239 _("directory inode map"),
1240 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1241 EXT2FS_BMAP64_AUTODIR,
1242 "inode_dir_map", &ctx->inode_dir_map);
1245 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1246 ctx->flags |= E2F_FLAG_ABORT;
1249 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1250 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1251 "inode_reg_map", &ctx->inode_reg_map);
1254 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1255 ctx->flags |= E2F_FLAG_ABORT;
1258 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1259 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1260 "block_found_map", &ctx->block_found_map);
1263 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1264 ctx->flags |= E2F_FLAG_ABORT;
1267 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1268 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1269 "block_metadata_map", &ctx->block_metadata_map);
1272 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1273 ctx->flags |= E2F_FLAG_ABORT;
1278 e2fsck_allocate_inode_bitmap(fs,
1279 _("inode casefold map"),
1280 EXT2FS_BMAP64_RBTREE,
1281 "inode_casefold_map",
1282 &ctx->inode_casefold_map);
1285 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1286 ctx->flags |= E2F_FLAG_ABORT;
1290 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1291 &ctx->inode_link_info);
1293 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1294 ctx->flags |= E2F_FLAG_ABORT;
1297 bufsize = inode_size;
1298 if (bufsize < sizeof(struct ext2_inode_large))
1299 bufsize = sizeof(struct ext2_inode_large);
1300 inode = (struct ext2_inode *)
1301 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1303 inodes_to_process = (struct process_inode_block *)
1304 e2fsck_allocate_memory(ctx,
1305 (ctx->process_inode_size *
1306 sizeof(struct process_inode_block)),
1307 "array of inodes to process");
1308 process_inode_count = 0;
1310 pctx.errcode = ext2fs_init_dblist(fs, 0);
1312 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1313 ctx->flags |= E2F_FLAG_ABORT;
1318 * If the last orphan field is set, clear it, since the pass1
1319 * processing will automatically find and clear the orphans.
1320 * In the future, we may want to try using the last_orphan
1321 * linked list ourselves, but for now, we clear it so that the
1322 * ext3 mount code won't get confused.
1324 if (!(ctx->options & E2F_OPT_READONLY)) {
1325 if (fs->super->s_last_orphan) {
1326 fs->super->s_last_orphan = 0;
1327 ext2fs_mark_super_dirty(fs);
1331 mark_table_blocks(ctx);
1332 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1333 &ctx->block_found_map);
1335 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1336 ctx->flags |= E2F_FLAG_ABORT;
1339 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1340 "block interate buffer");
1341 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1342 e2fsck_use_inode_shortcuts(ctx, 1);
1343 e2fsck_intercept_block_allocations(ctx);
1344 old_op = ehandler_operation(_("opening inode scan"));
1345 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1347 ehandler_operation(old_op);
1349 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1350 ctx->flags |= E2F_FLAG_ABORT;
1353 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1354 EXT2_SF_WARN_GARBAGE_INODES, 0);
1355 ctx->stashed_inode = inode;
1356 scan_struct.ctx = ctx;
1357 scan_struct.block_buf = block_buf;
1358 scan_struct.inodes_to_process = inodes_to_process;
1359 scan_struct.process_inode_count = &process_inode_count;
1360 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1361 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1362 ctx->fs->group_desc_count)))
1364 if ((fs->super->s_wtime &&
1365 fs->super->s_wtime < fs->super->s_inodes_count) ||
1366 (fs->super->s_mtime &&
1367 fs->super->s_mtime < fs->super->s_inodes_count) ||
1368 (fs->super->s_mkfs_time &&
1369 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1370 low_dtime_check = 0;
1372 if (ext2fs_has_feature_mmp(fs->super) &&
1373 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1374 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1375 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1376 fs->super->s_mmp_block);
1378 /* Set up ctx->lost_and_found if possible */
1379 (void) e2fsck_get_lost_and_found(ctx, 0);
1382 if (ctx->global_ctx) {
1383 if (ctx->options & E2F_OPT_DEBUG &&
1384 ctx->options & E2F_OPT_MULTITHREAD)
1385 fprintf(stderr, "thread %d jumping to group %d\n",
1386 ctx->thread_info.et_thread_index,
1387 ctx->thread_info.et_group_start);
1388 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1389 ctx->thread_info.et_group_start);
1391 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1392 ctx->flags |= E2F_FLAG_ABORT;
1399 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1400 if (e2fsck_mmp_update(fs))
1401 fatal_error(ctx, 0);
1403 old_op = ehandler_operation(eop_next_inode);
1404 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1406 if (ino > ino_threshold)
1407 pass1_readahead(ctx, &ra_group, &ino_threshold);
1408 ehandler_operation(old_op);
1409 if (e2fsck_should_abort(ctx))
1411 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1413 * If badblocks says badblocks is bad, offer to clear
1414 * the list, update the in-core bb list, and restart
1417 if (ino == EXT2_BAD_INO &&
1418 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1422 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1423 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1424 ctx->fs->badblocks = NULL;
1425 err = ext2fs_read_bb_inode(ctx->fs,
1426 &ctx->fs->badblocks);
1428 fix_problem(ctx, PR_1_ISCAN_ERROR,
1430 ctx->flags |= E2F_FLAG_ABORT;
1432 ctx->flags |= E2F_FLAG_RESTART;
1435 if (!ctx->inode_bb_map)
1437 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1438 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1441 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1444 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1445 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1446 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1447 ctx->flags |= E2F_FLAG_ABORT;
1453 if (ctx->global_ctx)
1454 ctx->thread_info.et_inode_number++;
1458 ctx->stashed_ino = ino;
1460 /* Clear trashed inode? */
1461 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1462 inode->i_links_count > 0 &&
1463 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1465 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1467 failed_csum = pctx.errcode != 0;
1470 * Check for inodes who might have been part of the
1471 * orphaned list linked list. They should have gotten
1472 * dealt with by now, unless the list had somehow been
1475 * FIXME: In the future, inodes which are still in use
1476 * (and which are therefore) pending truncation should
1477 * be handled specially. Right now we just clear the
1478 * dtime field, and the normal e2fsck handling of
1479 * inodes where i_size and the inode blocks are
1480 * inconsistent is to fix i_size, instead of releasing
1481 * the extra blocks. This won't catch the inodes that
1482 * was at the end of the orphan list, but it's better
1483 * than nothing. The right answer is that there
1484 * shouldn't be any bugs in the orphan list handling. :-)
1486 if (inode->i_dtime && low_dtime_check &&
1487 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1488 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1489 inode->i_dtime = inode->i_links_count ?
1491 e2fsck_write_inode(ctx, ino, inode,
1497 if (inode->i_links_count) {
1498 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1499 ino, inode->i_links_count);
1501 pctx.num = inode->i_links_count;
1502 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1503 ctx->flags |= E2F_FLAG_ABORT;
1506 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1507 !quota_inum_is_reserved(fs, ino)) {
1508 if (!inode->i_dtime && inode->i_mode) {
1509 if (fix_problem(ctx,
1510 PR_1_ZERO_DTIME, &pctx)) {
1511 inode->i_dtime = ctx->now;
1512 e2fsck_write_inode(ctx, ino, inode,
1517 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1521 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1522 ((!LINUX_S_ISDIR(inode->i_mode) &&
1523 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1525 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1526 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1527 e2fsck_write_inode(ctx, ino, inode, "pass1");
1530 /* Conflicting inlinedata/extents inode flags? */
1531 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1532 (inode->i_flags & EXT4_EXTENTS_FL)) {
1533 int res = fix_inline_data_extents_file(ctx, ino, inode,
1537 /* skip FINISH_INODE_LOOP */
1542 /* Test for incorrect inline_data flags settings. */
1543 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1544 (ino >= EXT2_FIRST_INODE(fs->super))) {
1547 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1548 if (!pctx.errcode &&
1549 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1550 ext2fs_set_feature_inline_data(sb);
1551 ext2fs_mark_super_dirty(fs);
1553 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1554 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1555 /* skip FINISH_INODE_LOOP */
1560 /* Test for inline data flag but no attr */
1561 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1562 (ino >= EXT2_FIRST_INODE(fs->super))) {
1569 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1570 err = get_inline_data_ea_size(fs, ino, &size);
1571 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1572 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1576 /* Everything is awesome... */
1578 case EXT2_ET_BAD_EA_BLOCK_NUM:
1579 case EXT2_ET_BAD_EA_HASH:
1580 case EXT2_ET_BAD_EA_HEADER:
1581 case EXT2_ET_EA_BAD_NAME_LEN:
1582 case EXT2_ET_EA_BAD_VALUE_SIZE:
1583 case EXT2_ET_EA_KEY_NOT_FOUND:
1584 case EXT2_ET_EA_NO_SPACE:
1585 case EXT2_ET_MISSING_EA_FEATURE:
1586 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1587 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1588 case EXT2_ET_INLINE_DATA_NO_SPACE:
1589 case EXT2_ET_NO_INLINE_DATA:
1590 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1591 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1592 case EXT2_ET_EA_INODE_CORRUPTED:
1593 /* broken EA or no system.data EA; truncate */
1594 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1596 err = ext2fs_inode_size_set(fs, inode, 0);
1599 ctx->flags |= E2F_FLAG_ABORT;
1602 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1603 memset(&inode->i_block, 0,
1604 sizeof(inode->i_block));
1605 e2fsck_write_inode(ctx, ino, inode,
1611 /* Some other kind of non-xattr error? */
1613 ctx->flags |= E2F_FLAG_ABORT;
1619 * Test for incorrect extent flag settings.
1621 * On big-endian machines we must be careful:
1622 * When the inode is read, the i_block array is not swapped
1623 * if the extent flag is set. Therefore if we are testing
1624 * for or fixing a wrongly-set flag, we must potentially
1625 * (un)swap before testing, or after fixing.
1629 * In this case the extents flag was set when read, so
1630 * extent_header_verify is ok. If the inode is cleared,
1631 * no need to swap... so no extra swapping here.
1633 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1634 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1635 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1636 if ((ext2fs_extent_header_verify(inode->i_block,
1637 sizeof(inode->i_block)) == 0) &&
1638 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1639 ext2fs_set_feature_extents(sb);
1640 ext2fs_mark_super_dirty(fs);
1642 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1644 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1645 if (ino == EXT2_BAD_INO)
1646 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1648 /* skip FINISH_INODE_LOOP */
1654 * For big-endian machines:
1655 * If the inode didn't have the extents flag set when it
1656 * was read, then the i_blocks array was swapped. To test
1657 * as an extents header, we must swap it back first.
1658 * IF we then set the extents flag, the entire i_block
1659 * array must be un/re-swapped to make it proper extents data.
1661 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1662 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1663 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1664 (LINUX_S_ISREG(inode->i_mode) ||
1665 LINUX_S_ISDIR(inode->i_mode))) {
1667 #ifdef WORDS_BIGENDIAN
1668 __u32 tmp_block[EXT2_N_BLOCKS];
1670 for (i = 0; i < EXT2_N_BLOCKS; i++)
1671 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1674 ehp = inode->i_block;
1676 if ((ext2fs_extent_header_verify(ehp,
1677 sizeof(inode->i_block)) == 0) &&
1678 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1679 inode->i_flags |= EXT4_EXTENTS_FL;
1680 #ifdef WORDS_BIGENDIAN
1681 memcpy(inode->i_block, tmp_block,
1682 sizeof(inode->i_block));
1684 e2fsck_write_inode(ctx, ino, inode, "pass1");
1689 if (ino == EXT2_BAD_INO) {
1690 struct process_block_struct pb;
1692 if ((failed_csum || inode->i_mode || inode->i_uid ||
1693 inode->i_gid || inode->i_links_count ||
1694 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1695 inode->i_file_acl) &&
1696 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1697 memset(inode, 0, sizeof(struct ext2_inode));
1698 e2fsck_write_inode(ctx, ino, inode,
1703 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1704 &pb.fs_meta_blocks);
1707 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1708 ctx->flags |= E2F_FLAG_ABORT;
1711 pb.ino = EXT2_BAD_INO;
1712 pb.num_blocks = pb.last_block = 0;
1713 pb.last_db_block = -1;
1714 pb.num_illegal_blocks = 0;
1715 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1716 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1720 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1721 block_buf, process_bad_block, &pb);
1722 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1724 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1725 ctx->flags |= E2F_FLAG_ABORT;
1729 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1730 ctx->flags |= E2F_FLAG_ABORT;
1733 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1734 clear_problem_context(&pctx);
1735 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1737 } else if (ino == EXT2_ROOT_INO) {
1739 * Make sure the root inode is a directory; if
1740 * not, offer to clear it. It will be
1741 * regenerated in pass #3.
1743 if (!LINUX_S_ISDIR(inode->i_mode)) {
1744 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1748 * If dtime is set, offer to clear it. mke2fs
1749 * version 0.2b created filesystems with the
1750 * dtime field set for the root and lost+found
1751 * directories. We won't worry about
1752 * /lost+found, since that can be regenerated
1753 * easily. But we will fix the root directory
1754 * as a special case.
1756 if (inode->i_dtime && inode->i_links_count) {
1757 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1759 e2fsck_write_inode(ctx, ino, inode,
1764 } else if (ino == EXT2_JOURNAL_INO) {
1765 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1766 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1767 if (!LINUX_S_ISREG(inode->i_mode) &&
1768 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1770 inode->i_mode = LINUX_S_IFREG;
1771 e2fsck_write_inode(ctx, ino, inode,
1775 check_blocks(ctx, &pctx, block_buf, NULL);
1776 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1779 if ((inode->i_links_count ||
1780 inode->i_blocks || inode->i_block[0]) &&
1781 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1783 memset(inode, 0, inode_size);
1784 ext2fs_icount_store(ctx->inode_link_info,
1786 e2fsck_write_inode_full(ctx, ino, inode,
1787 inode_size, "pass1");
1790 } else if (quota_inum_is_reserved(fs, ino)) {
1791 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1792 if (ext2fs_has_feature_quota(fs->super) &&
1793 quota_inum_is_super(fs->super, ino)) {
1794 if (!LINUX_S_ISREG(inode->i_mode) &&
1795 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1797 inode->i_mode = LINUX_S_IFREG;
1798 e2fsck_write_inode(ctx, ino, inode,
1802 check_blocks(ctx, &pctx, block_buf, NULL);
1803 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1806 if ((inode->i_links_count ||
1807 inode->i_blocks || inode->i_block[0]) &&
1808 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1810 memset(inode, 0, inode_size);
1811 ext2fs_icount_store(ctx->inode_link_info,
1813 e2fsck_write_inode_full(ctx, ino, inode,
1814 inode_size, "pass1");
1817 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1818 problem_t problem = 0;
1820 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1821 if (ino == EXT2_BOOT_LOADER_INO) {
1822 if (LINUX_S_ISDIR(inode->i_mode))
1823 problem = PR_1_RESERVED_BAD_MODE;
1824 } else if (ino == EXT2_RESIZE_INO) {
1825 if (inode->i_mode &&
1826 !LINUX_S_ISREG(inode->i_mode))
1827 problem = PR_1_RESERVED_BAD_MODE;
1829 if (inode->i_mode != 0)
1830 problem = PR_1_RESERVED_BAD_MODE;
1833 if (fix_problem(ctx, problem, &pctx)) {
1835 e2fsck_write_inode(ctx, ino, inode,
1840 check_blocks(ctx, &pctx, block_buf, NULL);
1841 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1845 if (!inode->i_links_count) {
1846 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1850 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1851 * deleted files. Oops.
1853 * Since all new ext2 implementations get this right,
1854 * we now assume that the case of non-zero
1855 * i_links_count and non-zero dtime means that we
1856 * should keep the file, not delete it.
1859 if (inode->i_dtime) {
1860 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1862 e2fsck_write_inode(ctx, ino, inode, "pass1");
1867 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1868 switch (fs->super->s_creator_os) {
1870 frag = inode->osd2.hurd2.h_i_frag;
1871 fsize = inode->osd2.hurd2.h_i_fsize;
1877 if (inode->i_faddr || frag || fsize ||
1878 (!ext2fs_has_feature_largedir(fs->super) &&
1879 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1880 mark_inode_bad(ctx, ino);
1881 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1882 !ext2fs_has_feature_64bit(fs->super) &&
1883 inode->osd2.linux2.l_i_file_acl_high != 0)
1884 mark_inode_bad(ctx, ino);
1885 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1886 !ext2fs_has_feature_huge_file(fs->super) &&
1887 (inode->osd2.linux2.l_i_blocks_hi != 0))
1888 mark_inode_bad(ctx, ino);
1889 if (inode->i_flags & EXT2_IMAGIC_FL) {
1891 if (!ctx->inode_imagic_map)
1892 alloc_imagic_map(ctx);
1893 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1896 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1897 inode->i_flags &= ~EXT2_IMAGIC_FL;
1898 e2fsck_write_inode(ctx, ino,
1905 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1906 check_is_really_dir(ctx, &pctx, block_buf);
1909 * ext2fs_inode_has_valid_blocks2 does not actually look
1910 * at i_block[] values, so not endian-sensitive here.
1912 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1913 LINUX_S_ISLNK(inode->i_mode) &&
1914 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1915 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1916 inode->i_flags &= ~EXT4_EXTENTS_FL;
1917 e2fsck_write_inode(ctx, ino, inode, "pass1");
1921 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
1922 add_encrypted_file(ctx, &pctx) < 0)
1925 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
1926 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
1928 if (LINUX_S_ISDIR(inode->i_mode)) {
1929 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1930 e2fsck_add_dir_info(ctx, ino, 0);
1931 ctx->fs_directory_count++;
1932 if (inode->i_flags & EXT4_CASEFOLD_FL)
1933 add_casefolded_dir(ctx, ino);
1934 } else if (LINUX_S_ISREG (inode->i_mode)) {
1935 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1936 ctx->fs_regular_count++;
1937 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1938 e2fsck_pass1_check_device_inode(fs, inode)) {
1939 check_extents_inlinedata(ctx, &pctx);
1940 check_immutable(ctx, &pctx);
1941 check_size(ctx, &pctx);
1942 ctx->fs_chardev_count++;
1943 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1944 e2fsck_pass1_check_device_inode(fs, inode)) {
1945 check_extents_inlinedata(ctx, &pctx);
1946 check_immutable(ctx, &pctx);
1947 check_size(ctx, &pctx);
1948 ctx->fs_blockdev_count++;
1949 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1950 e2fsck_pass1_check_symlink(fs, ino, inode,
1952 check_immutable(ctx, &pctx);
1953 ctx->fs_symlinks_count++;
1954 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1955 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1957 } else if (ext2fs_is_fast_symlink(inode)) {
1958 ctx->fs_fast_symlinks_count++;
1959 check_blocks(ctx, &pctx, block_buf,
1961 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1965 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1966 e2fsck_pass1_check_device_inode(fs, inode)) {
1967 check_extents_inlinedata(ctx, &pctx);
1968 check_immutable(ctx, &pctx);
1969 check_size(ctx, &pctx);
1970 ctx->fs_fifo_count++;
1971 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1972 e2fsck_pass1_check_device_inode(fs, inode)) {
1973 check_extents_inlinedata(ctx, &pctx);
1974 check_immutable(ctx, &pctx);
1975 check_size(ctx, &pctx);
1976 ctx->fs_sockets_count++;
1978 mark_inode_bad(ctx, ino);
1979 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1980 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1981 if (inode->i_block[EXT2_IND_BLOCK])
1982 ctx->fs_ind_count++;
1983 if (inode->i_block[EXT2_DIND_BLOCK])
1984 ctx->fs_dind_count++;
1985 if (inode->i_block[EXT2_TIND_BLOCK])
1986 ctx->fs_tind_count++;
1988 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1989 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1990 (inode->i_block[EXT2_IND_BLOCK] ||
1991 inode->i_block[EXT2_DIND_BLOCK] ||
1992 inode->i_block[EXT2_TIND_BLOCK] ||
1993 ext2fs_file_acl_block(fs, inode))) {
1994 struct process_inode_block *itp;
1996 itp = &inodes_to_process[process_inode_count];
1998 itp->ea_ibody_quota = ea_ibody_quota;
1999 if (inode_size < sizeof(struct ext2_inode_large))
2000 memcpy(&itp->inode, inode, inode_size);
2002 memcpy(&itp->inode, inode, sizeof(itp->inode));
2003 process_inode_count++;
2005 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2007 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2009 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2012 if (process_inode_count >= ctx->process_inode_size) {
2013 process_inodes(ctx, block_buf, inodes_to_process,
2014 &process_inode_count);
2016 if (e2fsck_should_abort(ctx))
2020 process_inodes(ctx, block_buf, inodes_to_process,
2021 &process_inode_count);
2022 ext2fs_close_inode_scan(scan);
2025 reserve_block_for_root_repair(ctx);
2026 reserve_block_for_lnf_repair(ctx);
2029 * If any extended attribute blocks' reference counts need to
2030 * be adjusted, either up (ctx->refcount_extra), or down
2031 * (ctx->refcount), then fix them.
2033 if (ctx->refcount) {
2034 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
2035 ea_refcount_free(ctx->refcount);
2038 if (ctx->refcount_extra) {
2039 adjust_extattr_refcount(ctx, ctx->refcount_extra,
2041 ea_refcount_free(ctx->refcount_extra);
2042 ctx->refcount_extra = 0;
2045 if (ctx->ea_block_quota_blocks) {
2046 ea_refcount_free(ctx->ea_block_quota_blocks);
2047 ctx->ea_block_quota_blocks = 0;
2050 if (ctx->ea_block_quota_inodes) {
2051 ea_refcount_free(ctx->ea_block_quota_inodes);
2052 ctx->ea_block_quota_inodes = 0;
2055 if (ctx->invalid_bitmaps)
2056 handle_fs_bad_blocks(ctx);
2058 /* We don't need the block_ea_map any more */
2059 if (ctx->block_ea_map) {
2060 ext2fs_free_block_bitmap(ctx->block_ea_map);
2061 ctx->block_ea_map = 0;
2064 /* We don't need the encryption policy => ID map any more */
2065 destroy_encryption_policy_map(ctx);
2067 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2068 clear_problem_context(&pctx);
2069 pctx.errcode = ext2fs_create_resize_inode(fs);
2071 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2073 ctx->flags |= E2F_FLAG_ABORT;
2078 if (!pctx.errcode) {
2079 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2081 inode->i_mtime = ctx->now;
2082 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2085 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2088 if (ctx->flags & E2F_FLAG_RESTART) {
2090 * Only the master copy of the superblock and block
2091 * group descriptors are going to be written during a
2092 * restart, so set the superblock to be used to be the
2093 * master superblock.
2095 ctx->use_superblock = 0;
2099 if (ctx->large_dirs && !ext2fs_has_feature_largedir(ctx->fs->super)) {
2100 ext2_filsys fs = ctx->fs;
2102 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2103 ext2fs_set_feature_largedir(fs->super);
2104 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2105 ext2fs_mark_super_dirty(fs);
2107 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2108 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2109 ext2fs_update_dynamic_rev(fs);
2110 ext2fs_mark_super_dirty(fs);
2114 if (ctx->block_dup_map) {
2115 if (ctx->options & E2F_OPT_PREEN) {
2116 clear_problem_context(&pctx);
2117 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2119 e2fsck_pass1_dupblocks(ctx, block_buf);
2121 ctx->flags |= E2F_FLAG_ALLOC_OK;
2123 e2fsck_use_inode_shortcuts(ctx, 0);
2124 ext2fs_free_mem(&inodes_to_process);
2125 inodes_to_process = 0;
2128 ext2fs_close_inode_scan(scan);
2130 ext2fs_free_mem(&block_buf);
2132 ext2fs_free_mem(&inode);
2135 * The l+f inode may have been cleared, so zap it now and
2136 * later passes will recalculate it if necessary
2138 ctx->lost_and_found = 0;
2140 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2141 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2143 ctx->invalid_bitmaps++;
2146 static void init_ext2_max_sizes()
2152 * Init ext2_max_sizes which will be immutable and shared between
2155 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
2157 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
2158 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
2159 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
2160 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
2161 max_sizes = (max_sizes * (1UL << i));
2162 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
2168 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2169 ext2fs_generic_bitmap *dest)
2173 ret = ext2fs_copy_bitmap(*src, dest);
2182 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2185 ext2fs_free_generic_bmap(*bitmap);
2191 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2192 ext2fs_generic_bitmap *dest)
2197 if (*dest == NULL) {
2201 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2211 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2216 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2217 dest->inode_map = NULL;
2218 dest->block_map = NULL;
2219 dest->badblocks = NULL;
2221 dest->dblist->fs = dest;
2222 if (src->block_map) {
2223 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2228 if (src->inode_map) {
2229 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2235 if (src->badblocks) {
2236 retval = ext2fs_badblocks_copy(src->badblocks,
2242 /* disable it for now */
2243 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2244 retval = ext2fs_open_channel(dest, src_context->io_options,
2245 src_context->io_manager,
2246 src_context->openfs_flags,
2247 src->io->block_size);
2251 /* Block size might not be default */
2252 io_channel_set_blksize(dest->io, src->io->block_size);
2253 ehandler_init(dest->io);
2255 assert(dest->io->magic == src->io->magic);
2256 assert(dest->io->manager == src->io->manager);
2257 assert(strcmp(dest->io->name, src->io->name) == 0);
2258 assert(dest->io->block_size == src->io->block_size);
2259 assert(dest->io->read_error == src->io->read_error);
2260 assert(dest->io->write_error == src->io->write_error);
2261 assert(dest->io->refcount == src->io->refcount);
2262 assert(dest->io->flags == src->io->flags);
2263 assert(dest->io->app_data == dest);
2264 assert(src->io->app_data == src);
2265 assert(dest->io->align == src->io->align);
2267 /* The data should be written to disk immediately */
2268 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2269 /* icache will be rebuilt if needed, so do not copy from @src */
2274 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2276 struct ext2_inode_cache *icache = dest->icache;
2277 errcode_t retval = 0;
2279 io_channel dest_image_io;
2280 ext2fs_inode_bitmap inode_map;
2281 ext2fs_block_bitmap block_map;
2282 ext2_badblocks_list badblocks;
2286 dest_image_io = dest->image_io;
2287 inode_map = dest->inode_map;
2288 block_map = dest->block_map;
2289 badblocks = dest->badblocks;
2290 dblist = dest->dblist;
2292 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2294 dest->image_io = dest_image_io;
2295 dest->icache = icache;
2296 dest->inode_map = inode_map;
2297 dest->block_map = block_map;
2298 dest->badblocks = badblocks;
2299 dest->dblist = dblist;
2301 dest->dblist->fs = dest;
2304 ext2fs_free_inode_cache(src->icache);
2308 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2313 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2320 retval = ext2fs_merge_dblist(src->dblist,
2325 dest->dblist = src->dblist;
2326 dest->dblist->fs = dest;
2331 if (src->badblocks) {
2332 if (dest->badblocks == NULL)
2333 retval = ext2fs_badblocks_copy(src->badblocks,
2336 retval = ext2fs_badblocks_merge(src->badblocks,
2340 io_channel_close(src->io);
2342 ext2fs_free_generic_bmap(src->inode_map);
2344 ext2fs_free_generic_bmap(src->block_map);
2346 ext2fs_badblocks_list_free(src->badblocks);
2348 ext2fs_free_dblist(src->dblist);
2353 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2354 int thread_index, int num_threads)
2357 e2fsck_t thread_context;
2358 ext2_filsys thread_fs;
2359 ext2_filsys global_fs = global_ctx->fs;
2360 struct e2fsck_thread *tinfo;
2361 dgrp_t average_group;
2363 assert(global_ctx->inode_used_map == NULL);
2364 assert(global_ctx->inode_dir_map == NULL);
2365 assert(global_ctx->inode_bb_map == NULL);
2366 assert(global_ctx->inode_imagic_map == NULL);
2367 assert(global_ctx->inode_reg_map == NULL);
2368 assert(global_ctx->inodes_to_rebuild == NULL);
2370 assert(global_ctx->block_found_map == NULL);
2371 assert(global_ctx->block_dup_map == NULL);
2372 assert(global_ctx->block_ea_map == NULL);
2373 assert(global_ctx->block_metadata_map == NULL);
2374 assert(global_ctx->fs->dblist == NULL);
2376 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2378 com_err(global_ctx->program_name, retval, "while allocating memory");
2381 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2382 thread_context->global_ctx = global_ctx;
2384 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2386 com_err(global_ctx->program_name, retval, "while allocating memory");
2390 io_channel_flush_cleanup(global_fs->io);
2391 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2393 com_err(global_ctx->program_name, retval, "while copying fs");
2396 thread_fs->priv_data = thread_context;
2398 thread_context->thread_info.et_thread_index = thread_index;
2399 set_up_logging(thread_context);
2402 * Distribute work to multiple threads:
2403 * Each thread work on fs->group_desc_count / nthread groups.
2405 tinfo = &thread_context->thread_info;
2406 average_group = thread_fs->group_desc_count / num_threads;
2407 if (average_group == 0)
2409 tinfo->et_group_start = average_group * thread_index;
2410 if (thread_index == num_threads - 1)
2411 tinfo->et_group_end = thread_fs->group_desc_count;
2413 tinfo->et_group_end = average_group * (thread_index + 1);
2414 tinfo->et_group_next = tinfo->et_group_start;
2415 tinfo->et_inode_number = 0;
2416 tinfo->et_log_buf[0] = '\0';
2417 tinfo->et_log_length = 0;
2418 if (thread_context->options & E2F_OPT_MULTITHREAD)
2419 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2420 tinfo->et_group_start, tinfo->et_group_end);
2421 thread_context->fs = thread_fs;
2422 *thread_ctx = thread_context;
2425 ext2fs_free_mem(&thread_fs);
2427 ext2fs_free_mem(&thread_context);
2431 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2433 if (thread_ctx->dir_info == NULL)
2436 if (global_ctx->dir_info == NULL) {
2437 global_ctx->dir_info = thread_ctx->dir_info;
2438 thread_ctx->dir_info = NULL;
2442 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2443 global_ctx->dir_info);
2446 static inline errcode_t
2447 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2448 ext2_icount_t *src_icount)
2451 if (*dest_icount == NULL) {
2452 *dest_icount = *src_icount;
2457 ret = ext2fs_icount_merge(*src_icount,
2467 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2471 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2472 &thread_ctx->inode_count);
2475 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2476 &thread_ctx->inode_link_info);
2481 static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2484 int flags = global_ctx->flags;
2485 ext2_filsys thread_fs = thread_ctx->fs;
2486 ext2_filsys global_fs = global_ctx->fs;
2487 FILE *global_logf = global_ctx->logf;
2488 FILE *global_problem_logf = global_ctx->problem_logf;
2489 ext2fs_inode_bitmap inode_bad_map = global_ctx->inode_bad_map;
2490 struct dir_info_db *dir_info = global_ctx->dir_info;
2491 ext2fs_inode_bitmap inode_used_map = global_ctx->inode_used_map;
2492 ext2fs_inode_bitmap inode_dir_map = global_ctx->inode_dir_map;
2493 ext2fs_inode_bitmap inode_bb_map = global_ctx->inode_bb_map;
2494 ext2fs_inode_bitmap inode_imagic_map = global_ctx->inode_imagic_map;
2495 ext2fs_inode_bitmap inode_reg_map = global_ctx->inode_reg_map;
2496 ext2fs_block_bitmap block_found_map = global_ctx->block_found_map;
2497 ext2fs_block_bitmap block_dup_map = global_ctx->block_dup_map;
2498 ext2fs_block_bitmap block_ea_map = global_ctx->block_ea_map;
2499 ext2fs_block_bitmap block_metadata_map = global_ctx->block_metadata_map;
2500 ext2fs_block_bitmap inodes_to_rebuild = global_ctx->inodes_to_rebuild;
2501 ext2_icount_t inode_count = global_ctx->inode_count;
2502 ext2_icount_t inode_link_info = global_ctx->inode_link_info;
2504 #ifdef HAVE_SETJMP_H
2507 memcpy(old_jmp, global_ctx->abort_loc, sizeof(jmp_buf));
2509 memcpy(global_ctx, thread_ctx, sizeof(struct e2fsck_struct));
2510 #ifdef HAVE_SETJMP_H
2511 memcpy(global_ctx->abort_loc, old_jmp, sizeof(jmp_buf));
2514 global_ctx->inode_used_map = inode_used_map;
2515 global_ctx->inode_bad_map = inode_bad_map;
2516 global_ctx->inode_dir_map = inode_dir_map;
2517 global_ctx->inode_bb_map = inode_bb_map;
2518 global_ctx->inode_imagic_map = inode_imagic_map;
2519 global_ctx->inodes_to_rebuild = inodes_to_rebuild;
2520 global_ctx->inode_reg_map = inode_reg_map;
2521 global_ctx->block_found_map = block_found_map;
2522 global_ctx->block_dup_map = block_dup_map;
2523 global_ctx->block_ea_map = block_ea_map;
2524 global_ctx->block_metadata_map = block_metadata_map;
2525 global_ctx->dir_info = dir_info;
2526 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2527 global_ctx->inode_count = inode_count;
2528 global_ctx->inode_link_info = inode_link_info;
2530 /* Keep the global singal flags*/
2531 global_ctx->flags |= (flags & E2F_FLAG_SIGNAL_MASK) |
2532 (global_ctx->flags & E2F_FLAG_SIGNAL_MASK);
2534 retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
2536 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2539 global_fs->priv_data = global_ctx;
2540 global_ctx->fs = global_fs;
2541 global_ctx->logf = global_logf;
2542 global_ctx->problem_logf = global_problem_logf;
2543 global_ctx->global_ctx = NULL;
2544 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2546 com_err(global_ctx->program_name, 0,
2547 _("while merging icounts\n"));
2551 retval = e2fsck_pass1_merge_bitmap(global_fs,
2552 &thread_ctx->inode_used_map,
2553 &global_ctx->inode_used_map);
2557 retval = e2fsck_pass1_merge_bitmap(global_fs,
2558 &thread_ctx->inode_bad_map,
2559 &global_ctx->inode_bad_map);
2562 retval = e2fsck_pass1_merge_bitmap(global_fs,
2563 &thread_ctx->inode_dir_map,
2564 &global_ctx->inode_dir_map);
2567 retval = e2fsck_pass1_merge_bitmap(global_fs,
2568 &thread_ctx->inode_bb_map,
2569 &global_ctx->inode_bb_map);
2572 retval = e2fsck_pass1_merge_bitmap(global_fs,
2573 &thread_ctx->inode_imagic_map,
2574 &global_ctx->inode_imagic_map);
2577 retval = e2fsck_pass1_merge_bitmap(global_fs,
2578 &thread_ctx->inode_reg_map,
2579 &global_ctx->inode_reg_map);
2582 retval = e2fsck_pass1_merge_bitmap(global_fs,
2583 &thread_ctx->inodes_to_rebuild,
2584 &global_ctx->inodes_to_rebuild);
2587 retval = e2fsck_pass1_merge_bitmap(global_fs,
2588 &thread_ctx->block_found_map,
2589 &global_ctx->block_found_map);
2592 retval = e2fsck_pass1_merge_bitmap(global_fs,
2593 &thread_ctx->block_dup_map,
2594 &global_ctx->block_dup_map);
2597 retval = e2fsck_pass1_merge_bitmap(global_fs,
2598 &thread_ctx->block_ea_map,
2599 &global_ctx->block_ea_map);
2602 retval = e2fsck_pass1_merge_bitmap(global_fs,
2603 &thread_ctx->block_metadata_map,
2604 &global_ctx->block_metadata_map);
2611 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2615 retval = e2fsck_pass1_thread_join_one(global_ctx, thread_ctx);
2616 ext2fs_free_mem(&thread_ctx->fs);
2617 if (thread_ctx->logf)
2618 fclose(thread_ctx->logf);
2619 if (thread_ctx->problem_logf) {
2620 fputs("</problem_log>\n", thread_ctx->problem_logf);
2621 fclose(thread_ctx->problem_logf);
2623 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
2624 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
2625 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
2626 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
2627 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
2628 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
2629 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
2630 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
2631 e2fsck_pass1_free_bitmap(&thread_ctx->block_dup_map);
2632 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
2633 e2fsck_pass1_free_bitmap(&thread_ctx->block_metadata_map);
2634 e2fsck_free_dir_info(thread_ctx);
2635 ext2fs_free_icount(thread_ctx->inode_count);
2636 ext2fs_free_icount(thread_ctx->inode_link_info);
2637 ext2fs_free_mem(&thread_ctx);
2642 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
2643 int num_threads, e2fsck_t global_ctx)
2648 struct e2fsck_thread_info *pinfo;
2650 for (i = 0; i < num_threads; i++) {
2653 if (!pinfo->eti_started)
2656 rc = pthread_join(pinfo->eti_thread_id, NULL);
2658 com_err(global_ctx->program_name, rc,
2659 _("while joining thread\n"));
2663 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
2665 com_err(global_ctx->program_name, rc,
2666 _("while joining pass1 thread\n"));
2676 static void *e2fsck_pass1_thread(void *arg)
2678 struct e2fsck_thread_info *info = arg;
2679 e2fsck_t thread_ctx = info->eti_thread_ctx;
2680 #ifdef DEBUG_THREADS
2681 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
2684 #ifdef DEBUG_THREADS
2685 pthread_mutex_lock(&thread_debug->etd_mutex);
2686 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
2687 pthread_cond_wait(&thread_debug->etd_cond,
2688 &thread_debug->etd_mutex);
2690 pthread_mutex_unlock(&thread_debug->etd_mutex);
2693 #ifdef HAVE_SETJMP_H
2695 * When fatal_error() happens, jump to here. The thread
2696 * context's flags will be saved, but its abort_loc will
2697 * be overwritten by original jump buffer for the later
2700 if (setjmp(thread_ctx->abort_loc)) {
2701 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
2704 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
2707 e2fsck_pass1_run(thread_ctx);
2710 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
2712 _("Scanned group range [%lu, %lu), inodes %lu\n"),
2713 thread_ctx->thread_info.et_group_start,
2714 thread_ctx->thread_info.et_group_end,
2715 thread_ctx->thread_info.et_inode_number);
2717 #ifdef DEBUG_THREADS
2718 pthread_mutex_lock(&thread_debug->etd_mutex);
2719 thread_debug->etd_finished_threads++;
2720 pthread_cond_broadcast(&thread_debug->etd_cond);
2721 pthread_mutex_unlock(&thread_debug->etd_mutex);
2727 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
2728 int num_threads, e2fsck_t global_ctx)
2730 struct e2fsck_thread_info *infos;
2731 pthread_attr_t attr;
2734 struct e2fsck_thread_info *tmp_pinfo;
2736 e2fsck_t thread_ctx;
2737 #ifdef DEBUG_THREADS
2738 struct e2fsck_thread_debug thread_debug =
2739 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
2741 thread_debug.etd_finished_threads = 0;
2744 retval = pthread_attr_init(&attr);
2746 com_err(global_ctx->program_name, retval,
2747 _("while setting pthread attribute\n"));
2751 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
2752 if (infos == NULL) {
2754 com_err(global_ctx->program_name, retval,
2755 _("while allocating memory for threads\n"));
2756 pthread_attr_destroy(&attr);
2760 for (i = 0; i < num_threads; i++) {
2761 tmp_pinfo = &infos[i];
2762 tmp_pinfo->eti_thread_index = i;
2763 #ifdef DEBUG_THREADS
2764 tmp_pinfo->eti_debug = &thread_debug;
2766 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
2769 com_err(global_ctx->program_name, retval,
2770 _("while preparing pass1 thread\n"));
2773 tmp_pinfo->eti_thread_ctx = thread_ctx;
2775 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
2776 &e2fsck_pass1_thread, tmp_pinfo);
2778 com_err(global_ctx->program_name, retval,
2779 _("while creating thread\n"));
2780 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
2784 tmp_pinfo->eti_started = 1;
2787 /* destroy the thread attribute object, since it is no longer needed */
2788 ret = pthread_attr_destroy(&attr);
2790 com_err(global_ctx->program_name, ret,
2791 _("while destroying thread attribute\n"));
2797 e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2804 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
2806 struct e2fsck_thread_info *infos = NULL;
2807 int num_threads = 1;
2810 retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
2812 com_err(global_ctx->program_name, retval,
2813 _("while starting pass1 threads\n"));
2817 retval = e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2819 com_err(global_ctx->program_name, retval,
2820 _("while joining pass1 threads\n"));
2825 global_ctx->flags |= E2F_FLAG_ABORT;
2830 /* TODO: tdb needs to be handled properly for multiple threads*/
2831 static int multiple_threads_supported(e2fsck_t ctx)
2834 unsigned int threshold;
2835 ext2_ino_t num_dirs;
2840 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
2842 profile_get_uint(ctx->profile, "scratch_files",
2843 "numdirs_threshold", 0, 0, &threshold);
2844 profile_get_boolean(ctx->profile, "scratch_files",
2845 "icount", 0, 1, &enable);
2847 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
2849 num_dirs = 1024; /* Guess */
2851 /* tdb is unsupported now */
2852 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
2853 (!threshold || num_dirs > threshold))
2859 void e2fsck_pass1(e2fsck_t ctx)
2862 init_ext2_max_sizes();
2864 if (multiple_threads_supported(ctx)) {
2865 e2fsck_pass1_multithread(ctx);
2868 fprintf(stderr, "Fall through single thread for pass1 "
2869 "because tdb could not handle properly\n");
2871 e2fsck_pass1_run(ctx);
2874 #undef FINISH_INODE_LOOP
2877 * When the inode_scan routines call this callback at the end of the
2878 * glock group, call process_inodes.
2880 static errcode_t scan_callback(ext2_filsys fs,
2881 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2882 dgrp_t group, void * priv_data)
2884 struct scan_callback_struct *scan_struct;
2886 struct e2fsck_thread *tinfo;
2888 scan_struct = (struct scan_callback_struct *) priv_data;
2889 ctx = scan_struct->ctx;
2891 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
2892 scan_struct->inodes_to_process,
2893 scan_struct->process_inode_count);
2896 if ((ctx->progress)(ctx, 1, group+1,
2897 ctx->fs->group_desc_count))
2898 return EXT2_ET_CANCEL_REQUESTED;
2901 if (ctx->global_ctx) {
2902 tinfo = &ctx->thread_info;
2903 tinfo->et_group_next++;
2904 if (ctx->options & E2F_OPT_DEBUG &&
2905 ctx->options & E2F_OPT_MULTITHREAD)
2906 log_out(ctx, _("group %d finished\n"),
2907 tinfo->et_group_next);
2908 if (tinfo->et_group_next >= tinfo->et_group_end)
2909 return EXT2_ET_SCAN_FINISHED;
2917 * Process the inodes in the "inodes to process" list.
2919 static void process_inodes(e2fsck_t ctx, char *block_buf,
2920 struct process_inode_block *inodes_to_process,
2921 int *process_inode_count)
2924 struct ext2_inode *old_stashed_inode;
2925 ext2_ino_t old_stashed_ino;
2926 const char *old_operation;
2928 struct problem_context pctx;
2931 printf("begin process_inodes: ");
2933 if (*process_inode_count == 0)
2935 old_operation = ehandler_operation(0);
2936 old_stashed_inode = ctx->stashed_inode;
2937 old_stashed_ino = ctx->stashed_ino;
2938 qsort(inodes_to_process, *process_inode_count,
2939 sizeof(struct process_inode_block), process_inode_cmp);
2940 clear_problem_context(&pctx);
2941 for (i=0; i < *process_inode_count; i++) {
2942 pctx.inode = ctx->stashed_inode =
2943 (struct ext2_inode *) &inodes_to_process[i].inode;
2944 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2947 printf("%u ", pctx.ino);
2949 sprintf(buf, _("reading indirect blocks of inode %u"),
2951 ehandler_operation(buf);
2952 check_blocks(ctx, &pctx, block_buf,
2953 &inodes_to_process[i].ea_ibody_quota);
2954 if (e2fsck_should_abort(ctx))
2957 ctx->stashed_inode = old_stashed_inode;
2958 ctx->stashed_ino = old_stashed_ino;
2959 *process_inode_count = 0;
2961 printf("end process inodes\n");
2963 ehandler_operation(old_operation);
2966 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2968 const struct process_inode_block *ib_a =
2969 (const struct process_inode_block *) a;
2970 const struct process_inode_block *ib_b =
2971 (const struct process_inode_block *) b;
2974 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2975 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2978 * We only call process_inodes() for non-extent
2979 * inodes, so it's OK to pass NULL to
2980 * ext2fs_file_acl_block() here.
2982 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2983 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2985 ret = ib_a->ino - ib_b->ino;
2990 * Mark an inode as being bad in some what
2992 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2994 struct problem_context pctx;
2996 if (!ctx->inode_bad_map) {
2997 clear_problem_context(&pctx);
2999 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3000 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3001 "inode_bad_map", &ctx->inode_bad_map);
3004 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3005 /* Should never get here */
3006 ctx->flags |= E2F_FLAG_ABORT;
3010 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3013 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
3015 struct problem_context pctx;
3017 if (!ctx->casefolded_dirs) {
3018 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3022 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3023 if (pctx.errcode == 0)
3026 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3027 /* Should never get here */
3028 ctx->flags |= E2F_FLAG_ABORT;
3032 * This procedure will allocate the inode "bb" (badblock) map table
3034 static void alloc_bb_map(e2fsck_t ctx)
3036 struct problem_context pctx;
3038 clear_problem_context(&pctx);
3039 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3040 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3041 "inode_bb_map", &ctx->inode_bb_map);
3044 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3045 /* Should never get here */
3046 ctx->flags |= E2F_FLAG_ABORT;
3052 * This procedure will allocate the inode imagic table
3054 static void alloc_imagic_map(e2fsck_t ctx)
3056 struct problem_context pctx;
3058 clear_problem_context(&pctx);
3059 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3060 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3061 "inode_imagic_map", &ctx->inode_imagic_map);
3064 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3065 /* Should never get here */
3066 ctx->flags |= E2F_FLAG_ABORT;
3072 * Marks a block as in use, setting the dup_map if it's been set
3073 * already. Called by process_block and process_bad_block.
3075 * WARNING: Assumes checks have already been done to make sure block
3076 * is valid. This is true in both process_block and process_bad_block.
3078 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3080 struct problem_context pctx;
3082 clear_problem_context(&pctx);
3084 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
3085 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3086 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3089 if (!ctx->block_dup_map) {
3090 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
3091 _("multiply claimed block map"),
3092 EXT2FS_BMAP64_RBTREE, "block_dup_map",
3093 &ctx->block_dup_map);
3096 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
3098 /* Should never get here */
3099 ctx->flags |= E2F_FLAG_ABORT;
3103 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
3105 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3110 * When cluster size is greater than one block, it is caller's responsibility
3111 * to make sure block parameter starts at a cluster boundary.
3113 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3116 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
3117 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3121 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3122 mark_block_used(ctx, block + i);
3127 * Adjust the extended attribute block's reference counts at the end
3128 * of pass 1, either by subtracting out references for EA blocks that
3129 * are still referenced in ctx->refcount, or by adding references for
3130 * EA blocks that had extra references as accounted for in
3131 * ctx->refcount_extra.
3133 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3134 char *block_buf, int adjust_sign)
3136 struct ext2_ext_attr_header *header;
3137 struct problem_context pctx;
3138 ext2_filsys fs = ctx->fs;
3143 clear_problem_context(&pctx);
3145 ea_refcount_intr_begin(refcount);
3147 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3150 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3153 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3156 header = (struct ext2_ext_attr_header *) block_buf;
3157 pctx.blkcount = header->h_refcount;
3158 should_be = header->h_refcount + adjust_sign * (int)count;
3159 pctx.num = should_be;
3160 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3161 header->h_refcount = should_be;
3162 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
3166 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3175 * Handle processing the extended attribute blocks
3177 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3178 char *block_buf, struct ea_quota *ea_block_quota)
3180 ext2_filsys fs = ctx->fs;
3181 ext2_ino_t ino = pctx->ino;
3182 struct ext2_inode *inode = pctx->inode;
3185 struct ext2_ext_attr_header *header;
3186 struct ext2_ext_attr_entry *first, *entry;
3187 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3188 __u64 quota_inodes = 0;
3189 region_t region = 0;
3190 int failed_csum = 0;
3192 ea_block_quota->blocks = 0;
3193 ea_block_quota->inodes = 0;
3195 blk = ext2fs_file_acl_block(fs, inode);
3200 * If the Extended attribute flag isn't set, then a non-zero
3201 * file acl means that the inode is corrupted.
3203 * Or if the extended attribute block is an invalid block,
3204 * then the inode is also corrupted.
3206 if (!ext2fs_has_feature_xattr(fs->super) ||
3207 (blk < fs->super->s_first_data_block) ||
3208 (blk >= ext2fs_blocks_count(fs->super))) {
3209 mark_inode_bad(ctx, ino);
3213 /* If ea bitmap hasn't been allocated, create it */
3214 if (!ctx->block_ea_map) {
3215 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3216 _("ext attr block map"),
3217 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3218 &ctx->block_ea_map);
3219 if (pctx->errcode) {
3221 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3222 ctx->flags |= E2F_FLAG_ABORT;
3227 /* Create the EA refcount structure if necessary */
3228 if (!ctx->refcount) {
3229 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3230 if (pctx->errcode) {
3232 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3233 ctx->flags |= E2F_FLAG_ABORT;
3239 /* Debugging text */
3240 printf("Inode %u has EA block %u\n", ino, blk);
3243 /* Have we seen this EA block before? */
3244 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3245 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3246 ea_block_quota->inodes = 0;
3248 if (ctx->ea_block_quota_blocks) {
3249 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3252 ea_block_quota->blocks = quota_blocks;
3255 if (ctx->ea_block_quota_inodes)
3256 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3257 &ea_block_quota->inodes);
3259 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3261 /* Ooops, this EA was referenced more than it stated */
3262 if (!ctx->refcount_extra) {
3263 pctx->errcode = ea_refcount_create(0,
3264 &ctx->refcount_extra);
3265 if (pctx->errcode) {
3267 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3268 ctx->flags |= E2F_FLAG_ABORT;
3272 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3277 * OK, we haven't seen this EA block yet. So we need to
3281 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3282 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3285 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3288 if (pctx->errcode &&
3289 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3293 header = (struct ext2_ext_attr_header *) block_buf;
3294 pctx->blk = ext2fs_file_acl_block(fs, inode);
3295 if (((ctx->ext_attr_ver == 1) &&
3296 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3297 ((ctx->ext_attr_ver == 2) &&
3298 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3299 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3303 if (header->h_blocks != 1) {
3304 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3308 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3311 region = region_create(0, fs->blocksize);
3313 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3314 ctx->flags |= E2F_FLAG_ABORT;
3317 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3318 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3322 first = (struct ext2_ext_attr_entry *)(header+1);
3323 end = block_buf + fs->blocksize;
3325 while ((char *)entry < end && *(__u32 *)entry) {
3328 if (region_allocate(region, (char *)entry - (char *)header,
3329 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3330 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3334 if ((ctx->ext_attr_ver == 1 &&
3335 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3336 (ctx->ext_attr_ver == 2 &&
3337 entry->e_name_index == 0)) {
3338 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3342 if (entry->e_value_inum == 0) {
3343 if (entry->e_value_offs + entry->e_value_size >
3345 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3349 if (entry->e_value_size &&
3350 region_allocate(region, entry->e_value_offs,
3351 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3352 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3357 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3358 entry->e_value_offs);
3360 if (entry->e_hash != hash) {
3361 pctx->num = entry->e_hash;
3362 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3364 entry->e_hash = hash;
3368 blk64_t entry_quota_blocks;
3370 problem = check_large_ea_inode(ctx, entry, pctx,
3371 &entry_quota_blocks);
3372 if (problem && fix_problem(ctx, problem, pctx))
3375 quota_blocks += entry_quota_blocks;
3379 entry = EXT2_EXT_ATTR_NEXT(entry);
3381 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3382 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3385 region_free(region);
3388 * We only get here if there was no other errors that were fixed.
3389 * If there was a checksum fail, ask to correct it.
3392 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3393 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
3399 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3400 if (!ctx->ea_block_quota_blocks) {
3401 pctx->errcode = ea_refcount_create(0,
3402 &ctx->ea_block_quota_blocks);
3403 if (pctx->errcode) {
3408 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3413 if (!ctx->ea_block_quota_inodes) {
3414 pctx->errcode = ea_refcount_create(0,
3415 &ctx->ea_block_quota_inodes);
3416 if (pctx->errcode) {
3419 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3420 ctx->flags |= E2F_FLAG_ABORT;
3425 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3428 ea_block_quota->blocks = quota_blocks;
3429 ea_block_quota->inodes = quota_inodes;
3431 inc_ea_inode_refs(ctx, pctx, first, end);
3432 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3433 mark_block_used(ctx, blk);
3434 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3439 region_free(region);
3440 ext2fs_file_acl_block_set(fs, inode, 0);
3441 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3445 /* Returns 1 if bad htree, 0 if OK */
3446 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3447 ext2_ino_t ino, struct ext2_inode *inode,
3450 struct ext2_dx_root_info *root;
3451 ext2_filsys fs = ctx->fs;
3455 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3456 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3457 (!ext2fs_has_feature_dir_index(fs->super) &&
3458 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3461 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3463 if ((pctx->errcode) ||
3465 (blk < fs->super->s_first_data_block) ||
3466 (blk >= ext2fs_blocks_count(fs->super))) {
3467 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3473 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3474 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3477 /* XXX should check that beginning matches a directory */
3478 root = (struct ext2_dx_root_info *) (block_buf + 24);
3480 if ((root->reserved_zero || root->info_length < 8) &&
3481 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3484 pctx->num = root->hash_version;
3485 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3486 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3487 (root->hash_version != EXT2_HASH_TEA) &&
3488 (root->hash_version != EXT2_HASH_SIPHASH) &&
3489 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3492 if (ext4_hash_in_dirent(inode)) {
3493 if (root->hash_version != EXT2_HASH_SIPHASH &&
3494 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3497 if (root->hash_version == EXT2_HASH_SIPHASH &&
3498 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3502 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3503 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3506 pctx->num = root->indirect_levels;
3507 /* if htree level is clearly too high, consider it to be broken */
3508 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3509 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3512 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3513 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3514 !ext2fs_has_feature_largedir(fs->super)) {
3515 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3516 int idx_pb = 1 << (blockbits - 3);
3518 /* compare inode size/blocks vs. max-sized 2-level htree */
3519 if (EXT2_I_SIZE(pctx->inode) <
3520 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3521 pctx->inode->i_blocks <
3522 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3523 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3527 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3528 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3534 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3535 struct ext2_inode *inode, int restart_flag,
3539 inode->i_links_count = 0;
3540 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3541 inode->i_dtime = ctx->now;
3544 * If a special inode has such rotten block mappings that we
3545 * want to clear the whole inode, be sure to actually zap
3546 * the block maps because i_links_count isn't checked for
3547 * special inodes, and we'll end up right back here the next
3550 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
3551 memset(inode->i_block, 0, sizeof(inode->i_block));
3553 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
3554 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
3555 if (ctx->inode_reg_map)
3556 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
3557 if (ctx->inode_bad_map)
3558 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
3561 * If the inode was partially accounted for before processing
3562 * was aborted, we need to restart the pass 1 scan.
3564 ctx->flags |= restart_flag;
3566 if (ino == EXT2_BAD_INO)
3567 memset(inode, 0, sizeof(struct ext2_inode));
3569 e2fsck_write_inode(ctx, ino, inode, source);
3573 * Use the multiple-blocks reclamation code to fix alignment problems in
3574 * a bigalloc filesystem. We want a logical cluster to map to *only* one
3575 * physical cluster, and we want the block offsets within that cluster to
3578 static int has_unaligned_cluster_map(e2fsck_t ctx,
3579 blk64_t last_pblk, blk64_t last_lblk,
3580 blk64_t pblk, blk64_t lblk)
3582 blk64_t cluster_mask;
3584 if (!ctx->fs->cluster_ratio_bits)
3586 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
3589 * If the block in the logical cluster doesn't align with the block in
3590 * the physical cluster...
3592 if ((lblk & cluster_mask) != (pblk & cluster_mask))
3596 * If we cross a physical cluster boundary within a logical cluster...
3598 if (last_pblk && (lblk & cluster_mask) != 0 &&
3599 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
3600 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
3606 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
3607 struct process_block_struct *pb,
3608 blk64_t start_block, blk64_t end_block,
3610 ext2_extent_handle_t ehandle,
3613 struct ext2fs_extent extent;
3614 blk64_t blk, last_lblk;
3616 int is_dir, is_leaf;
3618 struct ext2_extent_info info;
3619 int failed_csum = 0;
3621 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
3624 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
3627 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
3628 !pb->eti.force_rebuild) {
3629 struct extent_tree_level *etl;
3631 etl = pb->eti.ext_info + info.curr_level;
3632 etl->num_extents += info.num_entries;
3633 etl->max_extents += info.max_entries;
3635 * Implementation wart: Splitting extent blocks when appending
3636 * will leave the old block with one free entry. Therefore
3637 * unless the node is totally full, pretend that a non-root
3638 * extent block can hold one fewer entry than it actually does,
3639 * so that we don't repeatedly rebuild the extent tree.
3641 if (info.curr_level && info.num_entries < info.max_entries)
3645 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
3647 while ((pctx->errcode == 0 ||
3648 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
3649 info.num_entries-- > 0) {
3650 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
3651 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
3652 last_lblk = extent.e_lblk + extent.e_len - 1;
3655 pctx->blk = extent.e_pblk;
3656 pctx->blk2 = extent.e_lblk;
3657 pctx->num = extent.e_len;
3658 pctx->blkcount = extent.e_lblk + extent.e_len;
3660 if (extent.e_pblk == 0 ||
3661 extent.e_pblk < ctx->fs->super->s_first_data_block ||
3662 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
3663 problem = PR_1_EXTENT_BAD_START_BLK;
3664 else if (extent.e_lblk < start_block)
3665 problem = PR_1_OUT_OF_ORDER_EXTENTS;
3666 else if ((end_block && last_lblk > end_block) &&
3667 !(last_lblk > eof_block &&
3668 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
3669 (pctx->inode->i_flags & EXT4_VERITY_FL))))
3670 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
3671 else if (is_leaf && extent.e_len == 0)
3672 problem = PR_1_EXTENT_LENGTH_ZERO;
3674 (extent.e_pblk + extent.e_len) >
3675 ext2fs_blocks_count(ctx->fs->super))
3676 problem = PR_1_EXTENT_ENDS_BEYOND;
3677 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
3678 !ext2fs_has_feature_largedir(ctx->fs->super) &&
3679 ((extent.e_lblk + extent.e_len) >
3680 (1U << (21 - ctx->fs->super->s_log_block_size))))
3681 problem = PR_1_TOOBIG_DIR;
3683 if (is_leaf && problem == 0 && extent.e_len > 0) {
3685 printf("extent_region(ino=%u, expect=%llu, "
3686 "lblk=%llu, len=%u)\n", pb->ino,
3687 (unsigned long long) pb->next_lblock,
3688 (unsigned long long) extent.e_lblk,
3691 if (extent.e_lblk < pb->next_lblock)
3692 problem = PR_1_EXTENT_COLLISION;
3693 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
3694 pb->next_lblock = extent.e_lblk + extent.e_len;
3698 * Uninitialized blocks in a directory? Clear the flag and
3699 * we'll interpret the blocks later.
3701 if (try_repairs && is_dir && problem == 0 &&
3702 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3703 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
3704 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3705 pb->inode_modified = 1;
3706 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3712 #ifdef CONFIG_DEVELOPER_FEATURES
3713 if (try_repairs && !is_dir && problem == 0 &&
3714 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
3715 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3716 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
3717 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3718 pb->inode_modified = 1;
3719 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3726 if (try_repairs && problem) {
3728 if (fix_problem(ctx, problem, pctx)) {
3729 if (ctx->invalid_bitmaps) {
3731 * If fsck knows the bitmaps are bad,
3732 * skip to the next extent and
3733 * try to clear this extent again
3734 * after fixing the bitmaps, by
3737 pctx->errcode = ext2fs_extent_get(
3739 EXT2_EXTENT_NEXT_SIB,
3741 ctx->flags |= E2F_FLAG_RESTART_LATER;
3742 if (pctx->errcode ==
3743 EXT2_ET_NO_CURRENT_NODE) {
3749 e2fsck_read_bitmaps(ctx);
3750 pb->inode_modified = 1;
3752 ext2fs_extent_delete(ehandle, 0);
3753 if (pctx->errcode) {
3754 pctx->str = "ext2fs_extent_delete";
3757 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3758 if (pctx->errcode &&
3759 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
3760 pctx->str = "ext2fs_extent_fix_parents";
3763 pctx->errcode = ext2fs_extent_get(ehandle,
3764 EXT2_EXTENT_CURRENT,
3766 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
3777 blk64_t lblk = extent.e_lblk;
3778 int next_try_repairs = 1;
3780 blk = extent.e_pblk;
3783 * If this lower extent block collides with critical
3784 * metadata, don't try to repair the damage. Pass 1b
3785 * will reallocate the block; then we can try again.
3787 if (pb->ino != EXT2_RESIZE_INO &&
3788 extent.e_pblk < ctx->fs->super->s_blocks_count &&
3789 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3791 next_try_repairs = 0;
3794 PR_1_CRITICAL_METADATA_COLLISION,
3796 if ((ctx->options & E2F_OPT_NO) == 0)
3797 ctx->flags |= E2F_FLAG_RESTART_LATER;
3799 pctx->errcode = ext2fs_extent_get(ehandle,
3800 EXT2_EXTENT_DOWN, &extent);
3801 if (pctx->errcode &&
3802 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
3803 pctx->str = "EXT2_EXTENT_DOWN";
3804 problem = PR_1_EXTENT_HEADER_INVALID;
3805 if (!next_try_repairs)
3807 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
3808 goto report_problem;
3811 /* The next extent should match this index's logical start */
3812 if (extent.e_lblk != lblk) {
3813 struct ext2_extent_info e_info;
3815 pctx->errcode = ext2fs_extent_get_info(ehandle,
3817 if (pctx->errcode) {
3818 pctx->str = "ext2fs_extent_get_info";
3822 pctx->blk2 = extent.e_lblk;
3823 pctx->num = e_info.curr_level - 1;
3824 problem = PR_1_EXTENT_INDEX_START_INVALID;
3825 if (fix_problem(ctx, problem, pctx)) {
3826 pb->inode_modified = 1;
3828 ext2fs_extent_fix_parents(ehandle);
3829 if (pctx->errcode) {
3830 pctx->str = "ext2fs_extent_fix_parents";
3835 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
3836 last_lblk, eof_block, ehandle,
3840 pctx->errcode = ext2fs_extent_get(ehandle,
3841 EXT2_EXTENT_UP, &extent);
3842 if (pctx->errcode) {
3843 pctx->str = "EXT2_EXTENT_UP";
3846 mark_block_used(ctx, blk);
3851 if ((pb->previous_block != 0) &&
3852 (pb->previous_block+1 != extent.e_pblk)) {
3853 if (ctx->options & E2F_OPT_FRAGCHECK) {
3858 else if (pb->is_reg)
3861 printf(("%6lu(%c): expecting %6lu "
3863 "phys %6lu log %lu len %lu\n"),
3864 (unsigned long) pctx->ino, type,
3865 (unsigned long) pb->previous_block+1,
3866 (unsigned long) extent.e_pblk,
3867 (unsigned long) extent.e_lblk,
3868 (unsigned long) extent.e_len);
3873 * If we notice a gap in the logical block mappings of an
3874 * extent-mapped directory, offer to close the hole by
3875 * moving the logical block down, otherwise we'll go mad in
3876 * pass 3 allocating empty directory blocks to fill the hole.
3878 if (try_repairs && is_dir &&
3879 pb->last_block + 1 < extent.e_lblk) {
3882 new_lblk = pb->last_block + 1;
3883 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3884 new_lblk = ((new_lblk +
3885 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3886 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3888 EXT2FS_CLUSTER_MASK(ctx->fs));
3889 pctx->blk = extent.e_lblk;
3890 pctx->blk2 = new_lblk;
3891 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3892 extent.e_lblk = new_lblk;
3893 pb->inode_modified = 1;
3894 pctx->errcode = ext2fs_extent_replace(ehandle,
3896 if (pctx->errcode) {
3900 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3902 goto failed_add_dir_block;
3903 pctx->errcode = ext2fs_extent_goto(ehandle,
3906 goto failed_add_dir_block;
3907 last_lblk = extent.e_lblk + extent.e_len - 1;
3913 while (++pb->last_db_block <
3914 (e2_blkcnt_t) extent.e_lblk) {
3915 pctx->errcode = ext2fs_add_dir_block2(
3919 if (pctx->errcode) {
3921 pctx->num = pb->last_db_block;
3922 goto failed_add_dir_block;
3926 for (i = 0; i < extent.e_len; i++) {
3927 pctx->errcode = ext2fs_add_dir_block2(
3932 if (pctx->errcode) {
3933 pctx->blk = extent.e_pblk + i;
3934 pctx->num = extent.e_lblk + i;
3935 failed_add_dir_block:
3936 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3937 /* Should never get here */
3938 ctx->flags |= E2F_FLAG_ABORT;
3942 if (extent.e_len > 0)
3943 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3945 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3949 for (i = 0; i < extent.e_len; i++) {
3950 pctx->blk = extent.e_lblk + i;
3951 pctx->blk2 = extent.e_pblk + i;
3952 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3953 mark_block_used(ctx, extent.e_pblk + i);
3954 mark_block_used(ctx, extent.e_pblk + i);
3959 * Check whether first cluster got marked in previous iteration.
3961 if (ctx->fs->cluster_ratio_bits &&
3962 pb->previous_block &&
3963 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3964 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3965 /* Set blk to the beginning of next cluster. */
3968 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3970 /* Set blk to the beginning of current cluster. */
3971 blk = EXT2FS_C2B(ctx->fs,
3972 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3974 if (blk < extent.e_pblk + extent.e_len) {
3975 mark_blocks_used(ctx, blk,
3976 extent.e_pblk + extent.e_len - blk);
3977 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3978 EXT2FS_CLUSTER_RATIO(ctx->fs));
3979 pb->num_blocks += n;
3981 pb->last_block = extent.e_lblk + extent.e_len - 1;
3982 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3983 start_block = pb->last_block = last_lblk;
3984 if (is_leaf && !is_dir &&
3985 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3986 pb->last_init_lblock = last_lblk;
3988 pctx->errcode = ext2fs_extent_get(ehandle,
3989 EXT2_EXTENT_NEXT_SIB,
3993 /* Failed csum but passes checks? Ask to fix checksum. */
3995 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3996 pb->inode_modified = 1;
3997 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4002 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4006 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4007 struct process_block_struct *pb)
4009 struct ext2_extent_info info;
4010 struct ext2_inode *inode = pctx->inode;
4011 ext2_extent_handle_t ehandle;
4012 ext2_filsys fs = ctx->fs;
4013 ext2_ino_t ino = pctx->ino;
4016 struct ext3_extent_header *eh;
4018 /* Check for a proper extent header... */
4019 eh = (struct ext3_extent_header *) &inode->i_block[0];
4020 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4022 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4023 e2fsck_clear_inode(ctx, ino, inode, 0,
4024 "check_blocks_extents");
4029 /* ...since this function doesn't fail if i_block is zeroed. */
4030 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4031 if (pctx->errcode) {
4032 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4033 e2fsck_clear_inode(ctx, ino, inode, 0,
4034 "check_blocks_extents");
4039 retval = ext2fs_extent_get_info(ehandle, &info);
4041 int max_depth = info.max_depth;
4043 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4044 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4045 ctx->extent_depth_count[max_depth]++;
4048 /* Check maximum extent depth */
4049 pctx->blk = info.max_depth;
4050 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4051 if (pctx->blk2 < pctx->blk &&
4052 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4053 pb->eti.force_rebuild = 1;
4055 /* Can we collect extent tree level stats? */
4056 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4057 if (pctx->blk2 > pctx->blk)
4058 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4059 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4060 pb->eti.ino = pb->ino;
4062 pb->next_lblock = 0;
4064 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4065 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4066 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4067 if (pctx->errcode &&
4068 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4070 inode->i_blocks = 0;
4071 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4072 "check_blocks_extents");
4075 ext2fs_extent_free(ehandle);
4077 /* Rebuild unless it's a dir and we're rehashing it */
4078 if (LINUX_S_ISDIR(inode->i_mode) &&
4079 e2fsck_dir_will_be_rehashed(ctx, ino))
4082 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4083 e2fsck_rebuild_extents_later(ctx, ino);
4085 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4089 * In fact we don't need to check blocks for an inode with inline data
4090 * because this inode doesn't have any blocks. In this function all
4091 * we need to do is add this inode into dblist when it is a directory.
4093 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4094 struct process_block_struct *pb)
4097 size_t inline_data_size = 0;
4104 /* Process the dirents in i_block[] as the "first" block. */
4105 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4109 /* Process the dirents in the EA as a "second" block. */
4110 flags = ctx->fs->flags;
4111 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4112 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4114 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4115 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4116 if (pctx->errcode) {
4121 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4124 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4132 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4133 ctx->flags |= E2F_FLAG_ABORT;
4137 * This subroutine is called on each inode to account for all of the
4138 * blocks used by that inode.
4140 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4141 char *block_buf, const struct ea_quota *ea_ibody_quota)
4143 ext2_filsys fs = ctx->fs;
4144 struct process_block_struct pb;
4145 ext2_ino_t ino = pctx->ino;
4146 struct ext2_inode *inode = pctx->inode;
4147 unsigned bad_size = 0;
4148 int dirty_inode = 0;
4152 struct ea_quota ea_block_quota;
4155 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4156 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4158 pb.last_init_lblock = -1;
4159 pb.last_db_block = -1;
4160 pb.num_illegal_blocks = 0;
4161 pb.suppress = 0; pb.clear = 0;
4164 pb.previous_block = 0;
4165 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4166 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4167 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4171 pb.inode_modified = 0;
4172 pb.eti.force_rebuild = 0;
4176 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4177 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4179 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4180 if (e2fsck_should_abort(ctx))
4182 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4185 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4186 check_blocks_inline_data(ctx, pctx, &pb);
4187 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4188 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4189 check_blocks_extents(ctx, pctx, &pb);
4193 * If we've modified the inode, write it out before
4194 * iterate() tries to use it.
4197 e2fsck_write_inode(ctx, ino, inode,
4202 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4203 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4204 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4205 block_buf, process_block, &pb);
4207 * We do not have uninitialized extents in non extent
4210 pb.last_init_lblock = pb.last_block;
4212 * If iterate() changed a block mapping, we have to
4213 * re-read the inode. If we decide to clear the
4214 * inode after clearing some stuff, we'll re-write the
4215 * bad mappings into the inode!
4217 if (pb.inode_modified)
4218 e2fsck_read_inode(ctx, ino, inode,
4220 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4221 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4223 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4225 printf("bmap rebuild ino=%d\n", ino);
4227 if (!LINUX_S_ISDIR(inode->i_mode) ||
4228 !e2fsck_dir_will_be_rehashed(ctx, ino))
4229 e2fsck_rebuild_extents_later(ctx, ino);
4233 end_problem_latch(ctx, PR_LATCH_BLOCK);
4234 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4235 if (e2fsck_should_abort(ctx))
4238 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4240 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4241 if (LINUX_S_ISDIR(inode->i_mode))
4242 ctx->fs_fragmented_dir++;
4244 ctx->fs_fragmented++;
4248 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4253 if (inode->i_flags & EXT2_INDEX_FL) {
4254 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4255 inode->i_flags &= ~EXT2_INDEX_FL;
4258 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4262 if (!pb.num_blocks && pb.is_dir &&
4263 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4264 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4265 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4266 ctx->fs_directory_count--;
4271 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4272 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4273 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4274 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4276 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4277 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4278 ino, (ea_ibody_quota ?
4279 ea_ibody_quota->inodes : 0) +
4280 ea_block_quota.inodes + 1);
4283 if (!ext2fs_has_feature_huge_file(fs->super) ||
4284 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4285 pb.num_blocks *= (fs->blocksize / 512);
4286 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4288 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4289 ino, inode->i_size, (unsigned long long) pb.last_block,
4290 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4291 (unsigned long long) pb.num_blocks);
4293 size = EXT2_I_SIZE(inode);
4295 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4296 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4301 flags = ctx->fs->flags;
4302 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4303 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4305 ctx->fs->flags = (flags &
4306 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4308 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4309 if (err || sz != size) {
4313 } else if (size & (fs->blocksize - 1))
4315 else if (nblock > (pb.last_block + 1))
4317 else if (nblock < (pb.last_block + 1)) {
4318 if (((pb.last_block + 1) - nblock) >
4319 fs->super->s_prealloc_dir_blocks)
4323 if ((pb.last_init_lblock >= 0) &&
4324 /* Do not allow initialized allocated blocks past i_size*/
4325 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4326 !(inode->i_flags & EXT4_VERITY_FL))
4328 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4329 size > ext2_max_sizes[fs->super->s_log_block_size])
4330 /* too big for a direct/indirect-mapped file */
4332 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4334 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4335 /* too big for an extent-based file - 32bit ee_block */
4338 /* i_size for symlinks is checked elsewhere */
4339 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4340 /* Did inline_data set pctx->num earlier? */
4342 pctx->num = (pb.last_block + 1) * fs->blocksize;
4343 pctx->group = bad_size;
4344 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4345 ext2fs_inode_size_set(fs, inode, pctx->num);
4346 if (EXT2_I_SIZE(inode) == 0 &&
4347 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4348 memset(inode->i_block, 0,
4349 sizeof(inode->i_block));
4350 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4356 if (LINUX_S_ISREG(inode->i_mode) &&
4357 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4359 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4360 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4361 (ext2fs_has_feature_huge_file(fs->super) &&
4362 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4363 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4364 pctx->num = pb.num_blocks;
4365 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4366 inode->i_blocks = pb.num_blocks;
4367 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4374 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4375 * a block mapped file, so rebuild it as an extent file. We can skip
4376 * symlinks because they're never rewritten.
4378 if (ext2fs_has_feature_bigalloc(fs->super) &&
4379 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4380 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4381 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4382 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4383 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4384 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4389 if (ctx->dirs_to_hash && pb.is_dir &&
4390 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4391 !(inode->i_flags & EXT2_INDEX_FL) &&
4392 ((inode->i_size / fs->blocksize) >= 3))
4393 e2fsck_rehash_dir_later(ctx, ino);
4397 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4402 * Helper function called by process block when an illegal block is
4403 * found. It returns a description about why the block is illegal
4405 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4409 static char problem[80];
4411 super = fs->super->s_first_data_block;
4412 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4413 if (block < super) {
4414 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4416 } else if (block >= ext2fs_blocks_count(fs->super)) {
4417 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4420 for (i = 0; i < fs->group_desc_count; i++) {
4421 if (block == super) {
4422 sprintf(problem, "is the superblock in group %d", i);
4425 if (block > super &&
4426 block <= (super + fs->desc_blocks)) {
4427 sprintf(problem, "is in the group descriptors "
4431 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4432 sprintf(problem, "is the block bitmap of group %d", i);
4435 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4436 sprintf(problem, "is the inode bitmap of group %d", i);
4439 if (block >= ext2fs_inode_table_loc(fs, i) &&
4440 (block < ext2fs_inode_table_loc(fs, i)
4441 + fs->inode_blocks_per_group)) {
4442 sprintf(problem, "is in the inode table of group %d",
4446 super += fs->super->s_blocks_per_group;
4453 * This is a helper function for check_blocks().
4455 static int process_block(ext2_filsys fs,
4457 e2_blkcnt_t blockcnt,
4458 blk64_t ref_block EXT2FS_ATTR((unused)),
4459 int ref_offset EXT2FS_ATTR((unused)),
4462 struct process_block_struct *p;
4463 struct problem_context *pctx;
4464 blk64_t blk = *block_nr;
4466 problem_t problem = 0;
4469 p = (struct process_block_struct *) priv_data;
4474 * For a directory, add logical block zero for processing even if it's
4475 * not mapped or we'll be perennially stuck with broken "." and ".."
4478 if (p->is_dir && blockcnt == 0 && blk == 0) {
4479 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4480 if (pctx->errcode) {
4482 pctx->num = blockcnt;
4483 goto failed_add_dir_block;
4492 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4497 * Simplistic fragmentation check. We merely require that the
4498 * file be contiguous. (Which can never be true for really
4499 * big files that are greater than a block group.)
4501 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4502 if (p->previous_block+1 != blk) {
4503 if (ctx->options & E2F_OPT_FRAGCHECK) {
4511 printf(_("%6lu(%c): expecting %6lu "
4512 "got phys %6lu (blkcnt %lld)\n"),
4513 (unsigned long) pctx->ino, type,
4514 (unsigned long) p->previous_block+1,
4515 (unsigned long) blk,
4516 (long long) blockcnt);
4522 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4523 !pctx->inode->i_size_high &&
4524 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4525 problem = PR_1_TOOBIG_DIR;
4526 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4527 problem = PR_1_TOOBIG_DIR;
4528 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4529 problem = PR_1_TOOBIG_REG;
4530 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4531 problem = PR_1_TOOBIG_SYMLINK;
4533 if (blk < fs->super->s_first_data_block ||
4534 blk >= ext2fs_blocks_count(fs->super))
4535 problem = PR_1_ILLEGAL_BLOCK_NUM;
4538 * If this IND/DIND/TIND block is squatting atop some critical metadata
4539 * (group descriptors, superblock, bitmap, inode table), any write to
4540 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
4541 * fix that and restart fsck.
4544 p->ino != EXT2_RESIZE_INO &&
4545 blk < ctx->fs->super->s_blocks_count &&
4546 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
4548 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
4549 if ((ctx->options & E2F_OPT_NO) == 0)
4550 ctx->flags |= E2F_FLAG_RESTART_LATER;
4554 p->num_illegal_blocks++;
4556 * A bit of subterfuge here -- we're trying to fix a block
4557 * mapping, but the IND/DIND/TIND block could have collided
4558 * with some critical metadata. So, fix the in-core mapping so
4559 * iterate won't go insane, but return 0 instead of
4560 * BLOCK_CHANGED so that it won't write the remapping out to
4561 * our multiply linked block.
4563 * Even if we previously determined that an *IND block
4564 * conflicts with critical metadata, we must still try to
4565 * iterate the *IND block as if it is an *IND block to find and
4566 * mark the blocks it points to. Better to be overly cautious
4567 * with the used_blocks map so that we don't move the *IND
4568 * block to a block that's really in use!
4570 if (p->ino != EXT2_RESIZE_INO &&
4572 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4577 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
4578 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
4582 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
4584 set_latch_flags(PR_LATCH_BLOCK,
4589 pctx->blkcount = blockcnt;
4590 if (fix_problem(ctx, problem, pctx)) {
4591 blk = *block_nr = 0;
4592 ret_code = BLOCK_CHANGED;
4593 p->inode_modified = 1;
4595 * If the directory block is too big and is beyond the
4596 * end of the FS, don't bother trying to add it for
4597 * processing -- the kernel would never have created a
4598 * directory this large, and we risk an ENOMEM abort.
4599 * In any case, the toobig handler for extent-based
4600 * directories also doesn't feed toobig blocks to
4603 if (problem == PR_1_TOOBIG_DIR)
4610 if (p->ino == EXT2_RESIZE_INO) {
4612 * The resize inode has already be sanity checked
4613 * during pass #0 (the superblock checks). All we
4614 * have to do is mark the double indirect block as
4615 * being in use; all of the other blocks are handled
4616 * by mark_table_blocks()).
4618 if (blockcnt == BLOCK_COUNT_DIND)
4619 mark_block_used(ctx, blk);
4621 } else if (!(ctx->fs->cluster_ratio_bits &&
4622 p->previous_block &&
4623 (EXT2FS_B2C(ctx->fs, blk) ==
4624 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
4625 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
4626 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
4627 mark_block_used(ctx, blk);
4629 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
4630 p->last_block, blk, blockcnt)) {
4631 pctx->blk = blockcnt;
4633 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4634 mark_block_used(ctx, blk);
4635 mark_block_used(ctx, blk);
4638 p->last_block = blockcnt;
4639 p->previous_block = blk;
4641 if (p->is_dir && (blockcnt >= 0)) {
4642 while (++p->last_db_block < blockcnt) {
4643 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
4646 if (pctx->errcode) {
4648 pctx->num = p->last_db_block;
4649 goto failed_add_dir_block;
4652 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
4654 if (pctx->errcode) {
4656 pctx->num = blockcnt;
4657 failed_add_dir_block:
4658 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4659 /* Should never get here */
4660 ctx->flags |= E2F_FLAG_ABORT;
4667 static int process_bad_block(ext2_filsys fs,
4669 e2_blkcnt_t blockcnt,
4670 blk64_t ref_block EXT2FS_ATTR((unused)),
4671 int ref_offset EXT2FS_ATTR((unused)),
4674 struct process_block_struct *p;
4675 blk64_t blk = *block_nr;
4676 blk64_t first_block;
4678 struct problem_context *pctx;
4684 p = (struct process_block_struct *) priv_data;
4688 pctx->ino = EXT2_BAD_INO;
4690 pctx->blkcount = blockcnt;
4692 if ((blk < fs->super->s_first_data_block) ||
4693 (blk >= ext2fs_blocks_count(fs->super))) {
4694 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
4696 return BLOCK_CHANGED;
4702 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
4704 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
4706 return BLOCK_CHANGED;
4708 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4711 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
4714 return BLOCK_CHANGED;
4716 if (e2fsck_should_abort(ctx))
4719 mark_block_used(ctx, blk);
4723 printf ("DEBUG: Marking %u as bad.\n", blk);
4725 ctx->fs_badblocks_count++;
4727 * If the block is not used, then mark it as used and return.
4728 * If it is already marked as found, this must mean that
4729 * there's an overlap between the filesystem table blocks
4730 * (bitmaps and inode table) and the bad block list.
4732 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
4733 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4737 * Try to find the where the filesystem block was used...
4739 first_block = fs->super->s_first_data_block;
4741 for (i = 0; i < fs->group_desc_count; i++ ) {
4744 if (!ext2fs_bg_has_super(fs, i))
4746 if (blk == first_block) {
4748 if (fix_problem(ctx,
4749 PR_1_BAD_PRIMARY_SUPERBLOCK,
4752 return BLOCK_CHANGED;
4756 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
4759 if ((blk > first_block) &&
4760 (blk <= first_block + fs->desc_blocks)) {
4762 pctx->blk = *block_nr;
4763 if (fix_problem(ctx,
4764 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
4766 return BLOCK_CHANGED;
4770 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
4774 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
4775 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
4776 ctx->invalid_block_bitmap_flag[i]++;
4777 ctx->invalid_bitmaps++;
4781 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
4782 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
4783 ctx->invalid_inode_bitmap_flag[i]++;
4784 ctx->invalid_bitmaps++;
4788 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
4789 (blk < (ext2fs_inode_table_loc(fs, i) +
4790 fs->inode_blocks_per_group))) {
4792 * If there are bad blocks in the inode table,
4793 * the inode scan code will try to do
4794 * something reasonable automatically.
4798 first_block += fs->super->s_blocks_per_group;
4801 * If we've gotten to this point, then the only
4802 * possibility is that the bad block inode meta data
4803 * is using a bad block.
4805 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
4806 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
4807 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
4809 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
4811 return BLOCK_CHANGED;
4813 if (e2fsck_should_abort(ctx))
4820 /* Warn user that the block wasn't claimed */
4821 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
4826 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
4827 const char *name, int num, blk64_t *new_block)
4829 ext2_filsys fs = ctx->fs;
4831 blk64_t old_block = *new_block;
4834 unsigned flexbg_size;
4837 struct problem_context pctx;
4839 clear_problem_context(&pctx);
4842 pctx.blk = old_block;
4846 * For flex_bg filesystems, first try to allocate the metadata
4847 * within the flex_bg, and if that fails then try finding the
4848 * space anywhere in the filesystem.
4850 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
4852 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
4853 flexbg = group / flexbg_size;
4854 first_block = ext2fs_group_first_block2(fs,
4855 flexbg_size * flexbg);
4856 last_grp = group | (flexbg_size - 1);
4857 if (last_grp >= fs->group_desc_count)
4858 last_grp = fs->group_desc_count - 1;
4859 last_block = ext2fs_group_last_block2(fs, last_grp);
4861 last_block = ext2fs_group_last_block2(fs, group);
4862 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
4863 num, ctx->block_found_map,
4865 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
4866 pctx.errcode = ext2fs_get_free_blocks2(fs,
4867 fs->super->s_first_data_block,
4868 ext2fs_blocks_count(fs->super),
4869 num, ctx->block_found_map, new_block);
4872 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
4873 ext2fs_unmark_valid(fs);
4874 ctx->flags |= E2F_FLAG_ABORT;
4877 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4879 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4880 ext2fs_unmark_valid(fs);
4881 ctx->flags |= E2F_FLAG_ABORT;
4884 ext2fs_mark_super_dirty(fs);
4885 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4886 pctx.blk2 = *new_block;
4887 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4888 PR_1_RELOC_TO), &pctx);
4890 for (i = 0; i < num; i++) {
4892 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4894 pctx.errcode = io_channel_read_blk64(fs->io,
4895 old_block + i, 1, buf);
4897 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4898 pctx.blk = (*new_block) + i;
4899 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4902 pctx.blk = (*new_block) + i;
4903 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4908 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4910 ext2fs_free_mem(&buf);
4914 * This routine gets called at the end of pass 1 if bad blocks are
4915 * detected in the superblock, group descriptors, inode_bitmaps, or
4916 * block bitmaps. At this point, all of the blocks have been mapped
4917 * out, so we can try to allocate new block(s) to replace the bad
4920 static void handle_fs_bad_blocks(e2fsck_t ctx)
4922 ext2_filsys fs = ctx->fs;
4924 blk64_t first_block;
4927 for (i = 0; i < fs->group_desc_count; i++) {
4928 first_block = ext2fs_group_first_block2(fs, i);
4930 if (ctx->invalid_block_bitmap_flag[i]) {
4931 new_blk = ext2fs_block_bitmap_loc(fs, i);
4932 new_table_block(ctx, first_block, i, _("block bitmap"),
4934 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4936 if (ctx->invalid_inode_bitmap_flag[i]) {
4937 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4938 new_table_block(ctx, first_block, i, _("inode bitmap"),
4940 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4942 if (ctx->invalid_inode_table_flag[i]) {
4943 new_blk = ext2fs_inode_table_loc(fs, i);
4944 new_table_block(ctx, first_block, i, _("inode table"),
4945 fs->inode_blocks_per_group,
4947 ext2fs_inode_table_loc_set(fs, i, new_blk);
4948 ctx->flags |= E2F_FLAG_RESTART;
4951 ctx->invalid_bitmaps = 0;
4955 * This routine marks all blocks which are used by the superblock,
4956 * group descriptors, inode bitmaps, and block bitmaps.
4958 static void mark_table_blocks(e2fsck_t ctx)
4960 ext2_filsys fs = ctx->fs;
4964 struct problem_context pctx;
4966 clear_problem_context(&pctx);
4968 for (i = 0; i < fs->group_desc_count; i++) {
4971 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4972 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4975 * Mark the blocks used for the inode table
4977 if (ext2fs_inode_table_loc(fs, i)) {
4978 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4979 j < fs->inode_blocks_per_group;
4981 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4984 if (!ctx->invalid_inode_table_flag[i] &&
4986 PR_1_ITABLE_CONFLICT, &pctx)) {
4987 ctx->invalid_inode_table_flag[i]++;
4988 ctx->invalid_bitmaps++;
4991 ext2fs_mark_block_bitmap2(
4992 ctx->block_found_map, b);
4993 ext2fs_mark_block_bitmap2(
4994 ctx->block_metadata_map, b);
5000 * Mark block used for the block bitmap
5002 if (ext2fs_block_bitmap_loc(fs, i)) {
5003 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5004 ext2fs_block_bitmap_loc(fs, i))) {
5005 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5006 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5007 ctx->invalid_block_bitmap_flag[i]++;
5008 ctx->invalid_bitmaps++;
5011 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5012 ext2fs_block_bitmap_loc(fs, i));
5013 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5014 ext2fs_block_bitmap_loc(fs, i));
5018 * Mark block used for the inode bitmap
5020 if (ext2fs_inode_bitmap_loc(fs, i)) {
5021 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5022 ext2fs_inode_bitmap_loc(fs, i))) {
5023 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5024 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5025 ctx->invalid_inode_bitmap_flag[i]++;
5026 ctx->invalid_bitmaps++;
5029 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5030 ext2fs_inode_bitmap_loc(fs, i));
5031 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5032 ext2fs_inode_bitmap_loc(fs, i));
5039 * These subroutines short circuits ext2fs_get_blocks and
5040 * ext2fs_check_directory; we use them since we already have the inode
5041 * structure, so there's no point in letting the ext2fs library read
5044 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5047 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5050 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5051 return EXT2_ET_CALLBACK_NOTHANDLED;
5053 for (i=0; i < EXT2_N_BLOCKS; i++)
5054 blocks[i] = ctx->stashed_inode->i_block[i];
5058 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5059 struct ext2_inode *inode)
5061 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5063 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5064 return EXT2_ET_CALLBACK_NOTHANDLED;
5065 *inode = *ctx->stashed_inode;
5069 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5070 struct ext2_inode *inode)
5072 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5074 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5075 (inode != ctx->stashed_inode))
5076 *ctx->stashed_inode = *inode;
5077 return EXT2_ET_CALLBACK_NOTHANDLED;
5080 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5082 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5084 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5085 return EXT2_ET_CALLBACK_NOTHANDLED;
5087 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5088 return EXT2_ET_NO_DIRECTORY;
5092 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5095 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5099 if (ctx->block_found_map) {
5100 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5104 if (fs->block_map) {
5105 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5106 ext2fs_mark_bb_dirty(fs);
5109 if (!fs->block_map) {
5110 retval = ext2fs_read_block_bitmap(fs);
5115 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5124 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5125 blk64_t len, blk64_t *pblk, blk64_t *plen)
5127 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5130 if (ctx->block_found_map)
5131 return ext2fs_new_range(fs, flags, goal, len,
5132 ctx->block_found_map, pblk, plen);
5134 if (!fs->block_map) {
5135 retval = ext2fs_read_block_bitmap(fs);
5140 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5144 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5146 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5148 /* Never free a critical metadata block */
5149 if (ctx->block_found_map &&
5150 ctx->block_metadata_map &&
5152 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5155 if (ctx->block_found_map) {
5157 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5159 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5163 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5164 blk_t num, int inuse)
5166 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5168 /* Never free a critical metadata block */
5169 if (ctx->block_found_map &&
5170 ctx->block_metadata_map &&
5172 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5175 if (ctx->block_found_map) {
5177 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5180 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5185 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5187 ext2_filsys fs = ctx->fs;
5189 if (use_shortcuts) {
5190 fs->get_blocks = pass1_get_blocks;
5191 fs->check_directory = pass1_check_directory;
5192 fs->read_inode = pass1_read_inode;
5193 fs->write_inode = pass1_write_inode;
5194 ctx->stashed_ino = 0;
5197 fs->check_directory = 0;
5199 fs->write_inode = 0;
5203 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5205 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5206 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5207 e2fsck_block_alloc_stats, 0);
5208 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5209 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5210 e2fsck_block_alloc_stats_range, NULL);