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(fs->super)) {
2100 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2101 ext2fs_set_feature_largedir(fs->super);
2102 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2103 ext2fs_mark_super_dirty(fs);
2105 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2106 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2107 ext2fs_update_dynamic_rev(fs);
2108 ext2fs_mark_super_dirty(fs);
2112 if (ctx->block_dup_map) {
2113 if (ctx->options & E2F_OPT_PREEN) {
2114 clear_problem_context(&pctx);
2115 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2117 e2fsck_pass1_dupblocks(ctx, block_buf);
2119 ctx->flags |= E2F_FLAG_ALLOC_OK;
2121 e2fsck_use_inode_shortcuts(ctx, 0);
2122 ext2fs_free_mem(&inodes_to_process);
2123 inodes_to_process = 0;
2126 ext2fs_close_inode_scan(scan);
2128 ext2fs_free_mem(&block_buf);
2130 ext2fs_free_mem(&inode);
2133 * The l+f inode may have been cleared, so zap it now and
2134 * later passes will recalculate it if necessary
2136 ctx->lost_and_found = 0;
2138 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2139 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2141 ctx->invalid_bitmaps++;
2144 static void init_ext2_max_sizes()
2150 * Init ext2_max_sizes which will be immutable and shared between
2153 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
2155 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
2156 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
2157 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
2158 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
2159 max_sizes = (max_sizes * (1UL << i));
2160 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
2166 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2167 ext2fs_generic_bitmap *dest)
2171 ret = ext2fs_copy_bitmap(*src, dest);
2180 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2183 ext2fs_free_generic_bmap(*bitmap);
2189 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2190 ext2fs_generic_bitmap *dest)
2195 if (*dest == NULL) {
2199 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2209 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2214 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2215 dest->inode_map = NULL;
2216 dest->block_map = NULL;
2217 dest->badblocks = NULL;
2219 dest->dblist->fs = dest;
2220 if (src->block_map) {
2221 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2226 if (src->inode_map) {
2227 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2233 if (src->badblocks) {
2234 retval = ext2fs_badblocks_copy(src->badblocks,
2240 /* disable it for now */
2241 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2242 retval = ext2fs_open_channel(dest, src_context->io_options,
2243 src_context->io_manager,
2244 src_context->openfs_flags,
2245 src->io->block_size);
2249 /* Block size might not be default */
2250 io_channel_set_blksize(dest->io, src->io->block_size);
2251 ehandler_init(dest->io);
2253 assert(dest->io->magic == src->io->magic);
2254 assert(dest->io->manager == src->io->manager);
2255 assert(strcmp(dest->io->name, src->io->name) == 0);
2256 assert(dest->io->block_size == src->io->block_size);
2257 assert(dest->io->read_error == src->io->read_error);
2258 assert(dest->io->write_error == src->io->write_error);
2259 assert(dest->io->refcount == src->io->refcount);
2260 assert(dest->io->flags == src->io->flags);
2261 assert(dest->io->app_data == dest);
2262 assert(src->io->app_data == src);
2263 assert(dest->io->align == src->io->align);
2265 /* The data should be written to disk immediately */
2266 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2267 /* icache will be rebuilt if needed, so do not copy from @src */
2272 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2274 struct ext2_inode_cache *icache = dest->icache;
2275 errcode_t retval = 0;
2277 io_channel dest_image_io;
2278 ext2fs_inode_bitmap inode_map;
2279 ext2fs_block_bitmap block_map;
2280 ext2_badblocks_list badblocks;
2283 dest_image_io = dest->image_io;
2284 inode_map = dest->inode_map;
2285 block_map = dest->block_map;
2286 badblocks = dest->badblocks;
2288 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2290 dest->image_io = dest_image_io;
2291 dest->icache = icache;
2292 dest->inode_map = inode_map;
2293 dest->block_map = block_map;
2294 dest->badblocks = badblocks;
2296 dest->dblist->fs = dest;
2299 ext2fs_free_inode_cache(src->icache);
2303 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2308 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2313 if (src->badblocks) {
2314 if (dest->badblocks == NULL)
2315 retval = ext2fs_badblocks_copy(src->badblocks,
2318 retval = ext2fs_badblocks_merge(src->badblocks,
2322 io_channel_close(src->io);
2324 ext2fs_free_generic_bmap(src->inode_map);
2326 ext2fs_free_generic_bmap(src->block_map);
2328 ext2fs_badblocks_list_free(src->badblocks);
2332 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2333 int thread_index, int num_threads)
2336 e2fsck_t thread_context;
2337 ext2_filsys thread_fs;
2338 ext2_filsys global_fs = global_ctx->fs;
2339 struct e2fsck_thread *tinfo;
2340 dgrp_t average_group;
2342 assert(global_ctx->inode_used_map == NULL);
2343 assert(global_ctx->inode_dir_map == NULL);
2344 assert(global_ctx->inode_bb_map == NULL);
2345 assert(global_ctx->inode_imagic_map == NULL);
2346 assert(global_ctx->inode_reg_map == NULL);
2347 assert(global_ctx->inodes_to_rebuild == NULL);
2349 assert(global_ctx->block_found_map == NULL);
2350 assert(global_ctx->block_dup_map == NULL);
2351 assert(global_ctx->block_ea_map == NULL);
2352 assert(global_ctx->block_metadata_map == NULL);
2353 assert(global_ctx->fs->dblist == NULL);
2355 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2357 com_err(global_ctx->program_name, retval, "while allocating memory");
2360 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2361 thread_context->global_ctx = global_ctx;
2363 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2365 com_err(global_ctx->program_name, retval, "while allocating memory");
2369 io_channel_flush_cleanup(global_fs->io);
2370 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2372 com_err(global_ctx->program_name, retval, "while copying fs");
2375 thread_fs->priv_data = thread_context;
2377 thread_context->thread_info.et_thread_index = thread_index;
2378 set_up_logging(thread_context);
2381 * Distribute work to multiple threads:
2382 * Each thread work on fs->group_desc_count / nthread groups.
2384 tinfo = &thread_context->thread_info;
2385 average_group = thread_fs->group_desc_count / num_threads;
2386 if (average_group == 0)
2388 tinfo->et_group_start = average_group * thread_index;
2389 if (thread_index == num_threads - 1)
2390 tinfo->et_group_end = thread_fs->group_desc_count;
2392 tinfo->et_group_end = average_group * (thread_index + 1);
2393 tinfo->et_group_next = tinfo->et_group_start;
2394 tinfo->et_inode_number = 0;
2395 tinfo->et_log_buf[0] = '\0';
2396 tinfo->et_log_length = 0;
2397 if (thread_context->options & E2F_OPT_MULTITHREAD)
2398 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2399 tinfo->et_group_start, tinfo->et_group_end);
2400 thread_context->fs = thread_fs;
2401 *thread_ctx = thread_context;
2404 ext2fs_free_mem(&thread_fs);
2406 ext2fs_free_mem(&thread_context);
2410 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2412 if (thread_ctx->dir_info == NULL)
2415 if (global_ctx->dir_info == NULL) {
2416 global_ctx->dir_info = thread_ctx->dir_info;
2417 thread_ctx->dir_info = NULL;
2421 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2422 global_ctx->dir_info);
2425 static inline errcode_t
2426 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2427 ext2_icount_t *src_icount)
2430 if (*dest_icount == NULL) {
2431 *dest_icount = *src_icount;
2436 ret = ext2fs_icount_merge(*src_icount,
2446 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2450 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2451 &thread_ctx->inode_count);
2454 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2455 &thread_ctx->inode_link_info);
2460 static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2463 int flags = global_ctx->flags;
2464 ext2_filsys thread_fs = thread_ctx->fs;
2465 ext2_filsys global_fs = global_ctx->fs;
2466 FILE *global_logf = global_ctx->logf;
2467 FILE *global_problem_logf = global_ctx->problem_logf;
2468 ext2fs_inode_bitmap inode_bad_map = global_ctx->inode_bad_map;
2469 struct dir_info_db *dir_info = global_ctx->dir_info;
2470 ext2fs_inode_bitmap inode_used_map = global_ctx->inode_used_map;
2471 ext2fs_inode_bitmap inode_dir_map = global_ctx->inode_dir_map;
2472 ext2fs_inode_bitmap inode_bb_map = global_ctx->inode_bb_map;
2473 ext2fs_inode_bitmap inode_imagic_map = global_ctx->inode_imagic_map;
2474 ext2fs_inode_bitmap inode_reg_map = global_ctx->inode_reg_map;
2475 ext2fs_block_bitmap block_found_map = global_ctx->block_found_map;
2476 ext2fs_block_bitmap block_dup_map = global_ctx->block_dup_map;
2477 ext2fs_block_bitmap block_ea_map = global_ctx->block_ea_map;
2478 ext2fs_block_bitmap block_metadata_map = global_ctx->block_metadata_map;
2479 ext2fs_block_bitmap inodes_to_rebuild = global_ctx->inodes_to_rebuild;
2480 ext2_icount_t inode_count = global_ctx->inode_count;
2481 ext2_icount_t inode_link_info = global_ctx->inode_link_info;
2483 #ifdef HAVE_SETJMP_H
2486 memcpy(old_jmp, global_ctx->abort_loc, sizeof(jmp_buf));
2488 memcpy(global_ctx, thread_ctx, sizeof(struct e2fsck_struct));
2489 #ifdef HAVE_SETJMP_H
2490 memcpy(global_ctx->abort_loc, old_jmp, sizeof(jmp_buf));
2493 global_ctx->inode_used_map = inode_used_map;
2494 global_ctx->inode_bad_map = inode_bad_map;
2495 global_ctx->inode_dir_map = inode_dir_map;
2496 global_ctx->inode_bb_map = inode_bb_map;
2497 global_ctx->inode_imagic_map = inode_imagic_map;
2498 global_ctx->inodes_to_rebuild = inodes_to_rebuild;
2499 global_ctx->inode_reg_map = inode_reg_map;
2500 global_ctx->block_found_map = block_found_map;
2501 global_ctx->block_dup_map = block_dup_map;
2502 global_ctx->block_ea_map = block_ea_map;
2503 global_ctx->block_metadata_map = block_metadata_map;
2504 global_ctx->dir_info = dir_info;
2505 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2506 global_ctx->inode_count = inode_count;
2507 global_ctx->inode_link_info = inode_link_info;
2509 /* Keep the global singal flags*/
2510 global_ctx->flags |= (flags & E2F_FLAG_SIGNAL_MASK) |
2511 (global_ctx->flags & E2F_FLAG_SIGNAL_MASK);
2513 retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
2515 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2518 global_fs->priv_data = global_ctx;
2519 global_ctx->fs = global_fs;
2520 global_ctx->logf = global_logf;
2521 global_ctx->problem_logf = global_problem_logf;
2522 global_ctx->global_ctx = NULL;
2523 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2525 com_err(global_ctx->program_name, 0,
2526 _("while merging icounts\n"));
2530 retval = e2fsck_pass1_merge_bitmap(global_fs,
2531 &thread_ctx->inode_used_map,
2532 &global_ctx->inode_used_map);
2536 retval = e2fsck_pass1_merge_bitmap(global_fs,
2537 &thread_ctx->inode_bad_map,
2538 &global_ctx->inode_bad_map);
2541 retval = e2fsck_pass1_merge_bitmap(global_fs,
2542 &thread_ctx->inode_dir_map,
2543 &global_ctx->inode_dir_map);
2546 retval = e2fsck_pass1_merge_bitmap(global_fs,
2547 &thread_ctx->inode_bb_map,
2548 &global_ctx->inode_bb_map);
2551 retval = e2fsck_pass1_merge_bitmap(global_fs,
2552 &thread_ctx->inode_imagic_map,
2553 &global_ctx->inode_imagic_map);
2556 retval = e2fsck_pass1_merge_bitmap(global_fs,
2557 &thread_ctx->inode_reg_map,
2558 &global_ctx->inode_reg_map);
2561 retval = e2fsck_pass1_merge_bitmap(global_fs,
2562 &thread_ctx->inodes_to_rebuild,
2563 &global_ctx->inodes_to_rebuild);
2566 retval = e2fsck_pass1_merge_bitmap(global_fs,
2567 &thread_ctx->block_found_map,
2568 &global_ctx->block_found_map);
2571 retval = e2fsck_pass1_merge_bitmap(global_fs,
2572 &thread_ctx->block_dup_map,
2573 &global_ctx->block_dup_map);
2576 retval = e2fsck_pass1_merge_bitmap(global_fs,
2577 &thread_ctx->block_ea_map,
2578 &global_ctx->block_ea_map);
2581 retval = e2fsck_pass1_merge_bitmap(global_fs,
2582 &thread_ctx->block_metadata_map,
2583 &global_ctx->block_metadata_map);
2590 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2594 retval = e2fsck_pass1_thread_join_one(global_ctx, thread_ctx);
2595 ext2fs_free_mem(&thread_ctx->fs);
2596 if (thread_ctx->logf)
2597 fclose(thread_ctx->logf);
2598 if (thread_ctx->problem_logf) {
2599 fputs("</problem_log>\n", thread_ctx->problem_logf);
2600 fclose(thread_ctx->problem_logf);
2602 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
2603 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
2604 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
2605 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
2606 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
2607 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
2608 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
2609 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
2610 e2fsck_pass1_free_bitmap(&thread_ctx->block_dup_map);
2611 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
2612 e2fsck_pass1_free_bitmap(&thread_ctx->block_metadata_map);
2613 e2fsck_free_dir_info(thread_ctx);
2614 ext2fs_free_icount(thread_ctx->inode_count);
2615 ext2fs_free_icount(thread_ctx->inode_link_info);
2616 ext2fs_free_mem(&thread_ctx);
2621 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
2622 int num_threads, e2fsck_t global_ctx)
2627 struct e2fsck_thread_info *pinfo;
2629 for (i = 0; i < num_threads; i++) {
2632 if (!pinfo->eti_started)
2635 rc = pthread_join(pinfo->eti_thread_id, NULL);
2637 com_err(global_ctx->program_name, rc,
2638 _("while joining thread\n"));
2642 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
2644 com_err(global_ctx->program_name, rc,
2645 _("while joining pass1 thread\n"));
2655 static void *e2fsck_pass1_thread(void *arg)
2657 struct e2fsck_thread_info *info = arg;
2658 e2fsck_t thread_ctx = info->eti_thread_ctx;
2660 #ifdef HAVE_SETJMP_H
2662 * When fatal_error() happens, jump to here. The thread
2663 * context's flags will be saved, but its abort_loc will
2664 * be overwritten by original jump buffer for the later
2667 if (setjmp(thread_ctx->abort_loc)) {
2668 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
2671 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
2674 e2fsck_pass1_run(thread_ctx);
2677 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
2679 _("Scanned group range [%lu, %lu), inodes %lu\n"),
2680 thread_ctx->thread_info.et_group_start,
2681 thread_ctx->thread_info.et_group_end,
2682 thread_ctx->thread_info.et_inode_number);
2686 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
2687 int num_threads, e2fsck_t global_ctx)
2689 struct e2fsck_thread_info *infos;
2690 pthread_attr_t attr;
2693 struct e2fsck_thread_info *tmp_pinfo;
2695 e2fsck_t thread_ctx;
2697 retval = pthread_attr_init(&attr);
2699 com_err(global_ctx->program_name, retval,
2700 _("while setting pthread attribute\n"));
2704 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
2705 if (infos == NULL) {
2707 com_err(global_ctx->program_name, retval,
2708 _("while allocating memory for threads\n"));
2709 pthread_attr_destroy(&attr);
2713 for (i = 0; i < num_threads; i++) {
2714 tmp_pinfo = &infos[i];
2715 tmp_pinfo->eti_thread_index = i;
2716 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
2719 com_err(global_ctx->program_name, retval,
2720 _("while preparing pass1 thread\n"));
2723 tmp_pinfo->eti_thread_ctx = thread_ctx;
2725 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
2726 &e2fsck_pass1_thread, tmp_pinfo);
2728 com_err(global_ctx->program_name, retval,
2729 _("while creating thread\n"));
2730 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
2734 tmp_pinfo->eti_started = 1;
2737 /* destroy the thread attribute object, since it is no longer needed */
2738 ret = pthread_attr_destroy(&attr);
2740 com_err(global_ctx->program_name, ret,
2741 _("while destroying thread attribute\n"));
2747 e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2754 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
2756 struct e2fsck_thread_info *infos = NULL;
2757 int num_threads = 1;
2760 retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
2762 com_err(global_ctx->program_name, retval,
2763 _("while starting pass1 threads\n"));
2767 retval = e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2769 com_err(global_ctx->program_name, retval,
2770 _("while joining pass1 threads\n"));
2775 global_ctx->flags |= E2F_FLAG_ABORT;
2780 /* TODO: tdb needs to be handled properly for multiple threads*/
2781 static int multiple_threads_supported(e2fsck_t ctx)
2784 unsigned int threshold;
2785 ext2_ino_t num_dirs;
2790 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
2792 profile_get_uint(ctx->profile, "scratch_files",
2793 "numdirs_threshold", 0, 0, &threshold);
2794 profile_get_boolean(ctx->profile, "scratch_files",
2795 "icount", 0, 1, &enable);
2797 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
2799 num_dirs = 1024; /* Guess */
2801 /* tdb is unsupported now */
2802 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
2803 (!threshold || num_dirs > threshold))
2809 void e2fsck_pass1(e2fsck_t ctx)
2812 init_ext2_max_sizes();
2814 if (multiple_threads_supported(ctx)) {
2815 e2fsck_pass1_multithread(ctx);
2818 fprintf(stderr, "Fall through single thread for pass1 "
2819 "because tdb could not handle properly\n");
2821 e2fsck_pass1_run(ctx);
2824 #undef FINISH_INODE_LOOP
2827 * When the inode_scan routines call this callback at the end of the
2828 * glock group, call process_inodes.
2830 static errcode_t scan_callback(ext2_filsys fs,
2831 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2832 dgrp_t group, void * priv_data)
2834 struct scan_callback_struct *scan_struct;
2836 struct e2fsck_thread *tinfo;
2838 scan_struct = (struct scan_callback_struct *) priv_data;
2839 ctx = scan_struct->ctx;
2841 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
2842 scan_struct->inodes_to_process,
2843 scan_struct->process_inode_count);
2846 if ((ctx->progress)(ctx, 1, group+1,
2847 ctx->fs->group_desc_count))
2848 return EXT2_ET_CANCEL_REQUESTED;
2851 if (ctx->global_ctx) {
2852 tinfo = &ctx->thread_info;
2853 tinfo->et_group_next++;
2854 if (ctx->options & E2F_OPT_DEBUG &&
2855 ctx->options & E2F_OPT_MULTITHREAD)
2856 log_out(ctx, _("group %d finished\n"),
2857 tinfo->et_group_next);
2858 if (tinfo->et_group_next >= tinfo->et_group_end)
2859 return EXT2_ET_SCAN_FINISHED;
2867 * Process the inodes in the "inodes to process" list.
2869 static void process_inodes(e2fsck_t ctx, char *block_buf,
2870 struct process_inode_block *inodes_to_process,
2871 int *process_inode_count)
2874 struct ext2_inode *old_stashed_inode;
2875 ext2_ino_t old_stashed_ino;
2876 const char *old_operation;
2878 struct problem_context pctx;
2881 printf("begin process_inodes: ");
2883 if (*process_inode_count == 0)
2885 old_operation = ehandler_operation(0);
2886 old_stashed_inode = ctx->stashed_inode;
2887 old_stashed_ino = ctx->stashed_ino;
2888 qsort(inodes_to_process, *process_inode_count,
2889 sizeof(struct process_inode_block), process_inode_cmp);
2890 clear_problem_context(&pctx);
2891 for (i=0; i < *process_inode_count; i++) {
2892 pctx.inode = ctx->stashed_inode =
2893 (struct ext2_inode *) &inodes_to_process[i].inode;
2894 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2897 printf("%u ", pctx.ino);
2899 sprintf(buf, _("reading indirect blocks of inode %u"),
2901 ehandler_operation(buf);
2902 check_blocks(ctx, &pctx, block_buf,
2903 &inodes_to_process[i].ea_ibody_quota);
2904 if (e2fsck_should_abort(ctx))
2907 ctx->stashed_inode = old_stashed_inode;
2908 ctx->stashed_ino = old_stashed_ino;
2909 *process_inode_count = 0;
2911 printf("end process inodes\n");
2913 ehandler_operation(old_operation);
2916 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2918 const struct process_inode_block *ib_a =
2919 (const struct process_inode_block *) a;
2920 const struct process_inode_block *ib_b =
2921 (const struct process_inode_block *) b;
2924 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2925 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2928 * We only call process_inodes() for non-extent
2929 * inodes, so it's OK to pass NULL to
2930 * ext2fs_file_acl_block() here.
2932 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2933 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2935 ret = ib_a->ino - ib_b->ino;
2940 * Mark an inode as being bad in some what
2942 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2944 struct problem_context pctx;
2946 if (!ctx->inode_bad_map) {
2947 clear_problem_context(&pctx);
2949 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2950 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2951 "inode_bad_map", &ctx->inode_bad_map);
2954 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2955 /* Should never get here */
2956 ctx->flags |= E2F_FLAG_ABORT;
2960 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2963 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
2965 struct problem_context pctx;
2967 if (!ctx->casefolded_dirs) {
2968 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
2972 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
2973 if (pctx.errcode == 0)
2976 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
2977 /* Should never get here */
2978 ctx->flags |= E2F_FLAG_ABORT;
2982 * This procedure will allocate the inode "bb" (badblock) map table
2984 static void alloc_bb_map(e2fsck_t ctx)
2986 struct problem_context pctx;
2988 clear_problem_context(&pctx);
2989 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2990 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2991 "inode_bb_map", &ctx->inode_bb_map);
2994 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2995 /* Should never get here */
2996 ctx->flags |= E2F_FLAG_ABORT;
3002 * This procedure will allocate the inode imagic table
3004 static void alloc_imagic_map(e2fsck_t ctx)
3006 struct problem_context pctx;
3008 clear_problem_context(&pctx);
3009 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3010 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3011 "inode_imagic_map", &ctx->inode_imagic_map);
3014 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3015 /* Should never get here */
3016 ctx->flags |= E2F_FLAG_ABORT;
3022 * Marks a block as in use, setting the dup_map if it's been set
3023 * already. Called by process_block and process_bad_block.
3025 * WARNING: Assumes checks have already been done to make sure block
3026 * is valid. This is true in both process_block and process_bad_block.
3028 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3030 struct problem_context pctx;
3032 clear_problem_context(&pctx);
3034 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
3035 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3036 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3039 if (!ctx->block_dup_map) {
3040 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
3041 _("multiply claimed block map"),
3042 EXT2FS_BMAP64_RBTREE, "block_dup_map",
3043 &ctx->block_dup_map);
3046 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
3048 /* Should never get here */
3049 ctx->flags |= E2F_FLAG_ABORT;
3053 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
3055 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3060 * When cluster size is greater than one block, it is caller's responsibility
3061 * to make sure block parameter starts at a cluster boundary.
3063 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3066 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
3067 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3071 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3072 mark_block_used(ctx, block + i);
3077 * Adjust the extended attribute block's reference counts at the end
3078 * of pass 1, either by subtracting out references for EA blocks that
3079 * are still referenced in ctx->refcount, or by adding references for
3080 * EA blocks that had extra references as accounted for in
3081 * ctx->refcount_extra.
3083 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3084 char *block_buf, int adjust_sign)
3086 struct ext2_ext_attr_header *header;
3087 struct problem_context pctx;
3088 ext2_filsys fs = ctx->fs;
3093 clear_problem_context(&pctx);
3095 ea_refcount_intr_begin(refcount);
3097 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3100 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3103 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3106 header = (struct ext2_ext_attr_header *) block_buf;
3107 pctx.blkcount = header->h_refcount;
3108 should_be = header->h_refcount + adjust_sign * (int)count;
3109 pctx.num = should_be;
3110 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3111 header->h_refcount = should_be;
3112 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
3116 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3125 * Handle processing the extended attribute blocks
3127 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3128 char *block_buf, struct ea_quota *ea_block_quota)
3130 ext2_filsys fs = ctx->fs;
3131 ext2_ino_t ino = pctx->ino;
3132 struct ext2_inode *inode = pctx->inode;
3135 struct ext2_ext_attr_header *header;
3136 struct ext2_ext_attr_entry *first, *entry;
3137 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3138 __u64 quota_inodes = 0;
3139 region_t region = 0;
3140 int failed_csum = 0;
3142 ea_block_quota->blocks = 0;
3143 ea_block_quota->inodes = 0;
3145 blk = ext2fs_file_acl_block(fs, inode);
3150 * If the Extended attribute flag isn't set, then a non-zero
3151 * file acl means that the inode is corrupted.
3153 * Or if the extended attribute block is an invalid block,
3154 * then the inode is also corrupted.
3156 if (!ext2fs_has_feature_xattr(fs->super) ||
3157 (blk < fs->super->s_first_data_block) ||
3158 (blk >= ext2fs_blocks_count(fs->super))) {
3159 mark_inode_bad(ctx, ino);
3163 /* If ea bitmap hasn't been allocated, create it */
3164 if (!ctx->block_ea_map) {
3165 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3166 _("ext attr block map"),
3167 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3168 &ctx->block_ea_map);
3169 if (pctx->errcode) {
3171 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3172 ctx->flags |= E2F_FLAG_ABORT;
3177 /* Create the EA refcount structure if necessary */
3178 if (!ctx->refcount) {
3179 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3180 if (pctx->errcode) {
3182 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3183 ctx->flags |= E2F_FLAG_ABORT;
3189 /* Debugging text */
3190 printf("Inode %u has EA block %u\n", ino, blk);
3193 /* Have we seen this EA block before? */
3194 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3195 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3196 ea_block_quota->inodes = 0;
3198 if (ctx->ea_block_quota_blocks) {
3199 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3202 ea_block_quota->blocks = quota_blocks;
3205 if (ctx->ea_block_quota_inodes)
3206 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3207 &ea_block_quota->inodes);
3209 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3211 /* Ooops, this EA was referenced more than it stated */
3212 if (!ctx->refcount_extra) {
3213 pctx->errcode = ea_refcount_create(0,
3214 &ctx->refcount_extra);
3215 if (pctx->errcode) {
3217 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3218 ctx->flags |= E2F_FLAG_ABORT;
3222 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3227 * OK, we haven't seen this EA block yet. So we need to
3231 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3232 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3235 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3238 if (pctx->errcode &&
3239 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3243 header = (struct ext2_ext_attr_header *) block_buf;
3244 pctx->blk = ext2fs_file_acl_block(fs, inode);
3245 if (((ctx->ext_attr_ver == 1) &&
3246 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3247 ((ctx->ext_attr_ver == 2) &&
3248 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3249 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3253 if (header->h_blocks != 1) {
3254 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3258 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3261 region = region_create(0, fs->blocksize);
3263 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3264 ctx->flags |= E2F_FLAG_ABORT;
3267 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3268 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3272 first = (struct ext2_ext_attr_entry *)(header+1);
3273 end = block_buf + fs->blocksize;
3275 while ((char *)entry < end && *(__u32 *)entry) {
3278 if (region_allocate(region, (char *)entry - (char *)header,
3279 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3280 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3284 if ((ctx->ext_attr_ver == 1 &&
3285 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3286 (ctx->ext_attr_ver == 2 &&
3287 entry->e_name_index == 0)) {
3288 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3292 if (entry->e_value_inum == 0) {
3293 if (entry->e_value_offs + entry->e_value_size >
3295 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3299 if (entry->e_value_size &&
3300 region_allocate(region, entry->e_value_offs,
3301 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3302 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3307 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3308 entry->e_value_offs);
3310 if (entry->e_hash != hash) {
3311 pctx->num = entry->e_hash;
3312 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3314 entry->e_hash = hash;
3318 blk64_t entry_quota_blocks;
3320 problem = check_large_ea_inode(ctx, entry, pctx,
3321 &entry_quota_blocks);
3322 if (problem && fix_problem(ctx, problem, pctx))
3325 quota_blocks += entry_quota_blocks;
3329 entry = EXT2_EXT_ATTR_NEXT(entry);
3331 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3332 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3335 region_free(region);
3338 * We only get here if there was no other errors that were fixed.
3339 * If there was a checksum fail, ask to correct it.
3342 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3343 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
3349 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3350 if (!ctx->ea_block_quota_blocks) {
3351 pctx->errcode = ea_refcount_create(0,
3352 &ctx->ea_block_quota_blocks);
3353 if (pctx->errcode) {
3358 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3363 if (!ctx->ea_block_quota_inodes) {
3364 pctx->errcode = ea_refcount_create(0,
3365 &ctx->ea_block_quota_inodes);
3366 if (pctx->errcode) {
3369 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3370 ctx->flags |= E2F_FLAG_ABORT;
3375 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3378 ea_block_quota->blocks = quota_blocks;
3379 ea_block_quota->inodes = quota_inodes;
3381 inc_ea_inode_refs(ctx, pctx, first, end);
3382 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3383 mark_block_used(ctx, blk);
3384 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3389 region_free(region);
3390 ext2fs_file_acl_block_set(fs, inode, 0);
3391 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3395 /* Returns 1 if bad htree, 0 if OK */
3396 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3397 ext2_ino_t ino, struct ext2_inode *inode,
3400 struct ext2_dx_root_info *root;
3401 ext2_filsys fs = ctx->fs;
3405 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3406 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3407 (!ext2fs_has_feature_dir_index(fs->super) &&
3408 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3411 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3413 if ((pctx->errcode) ||
3415 (blk < fs->super->s_first_data_block) ||
3416 (blk >= ext2fs_blocks_count(fs->super))) {
3417 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3423 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3424 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3427 /* XXX should check that beginning matches a directory */
3428 root = (struct ext2_dx_root_info *) (block_buf + 24);
3430 if ((root->reserved_zero || root->info_length < 8) &&
3431 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3434 pctx->num = root->hash_version;
3435 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3436 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3437 (root->hash_version != EXT2_HASH_TEA) &&
3438 (root->hash_version != EXT2_HASH_SIPHASH) &&
3439 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3442 if (ext4_hash_in_dirent(inode)) {
3443 if (root->hash_version != EXT2_HASH_SIPHASH &&
3444 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3447 if (root->hash_version == EXT2_HASH_SIPHASH &&
3448 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3452 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3453 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3456 pctx->num = root->indirect_levels;
3457 /* if htree level is clearly too high, consider it to be broken */
3458 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3459 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3462 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3463 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3464 !ext2fs_has_feature_largedir(fs->super)) {
3465 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3466 unsigned idx_pb = 1 << (blockbits - 3);
3468 /* compare inode size/blocks vs. max-sized 2-level htree */
3469 if (EXT2_I_SIZE(pctx->inode) <
3470 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3471 pctx->inode->i_blocks <
3472 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3473 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3477 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3478 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3484 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3485 struct ext2_inode *inode, int restart_flag,
3489 inode->i_links_count = 0;
3490 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3491 inode->i_dtime = ctx->now;
3494 * If a special inode has such rotten block mappings that we
3495 * want to clear the whole inode, be sure to actually zap
3496 * the block maps because i_links_count isn't checked for
3497 * special inodes, and we'll end up right back here the next
3500 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
3501 memset(inode->i_block, 0, sizeof(inode->i_block));
3503 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
3504 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
3505 if (ctx->inode_reg_map)
3506 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
3507 if (ctx->inode_bad_map)
3508 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
3511 * If the inode was partially accounted for before processing
3512 * was aborted, we need to restart the pass 1 scan.
3514 ctx->flags |= restart_flag;
3516 if (ino == EXT2_BAD_INO)
3517 memset(inode, 0, sizeof(struct ext2_inode));
3519 e2fsck_write_inode(ctx, ino, inode, source);
3523 * Use the multiple-blocks reclamation code to fix alignment problems in
3524 * a bigalloc filesystem. We want a logical cluster to map to *only* one
3525 * physical cluster, and we want the block offsets within that cluster to
3528 static int has_unaligned_cluster_map(e2fsck_t ctx,
3529 blk64_t last_pblk, blk64_t last_lblk,
3530 blk64_t pblk, blk64_t lblk)
3532 blk64_t cluster_mask;
3534 if (!ctx->fs->cluster_ratio_bits)
3536 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
3539 * If the block in the logical cluster doesn't align with the block in
3540 * the physical cluster...
3542 if ((lblk & cluster_mask) != (pblk & cluster_mask))
3546 * If we cross a physical cluster boundary within a logical cluster...
3548 if (last_pblk && (lblk & cluster_mask) != 0 &&
3549 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
3550 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
3556 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
3557 struct process_block_struct *pb,
3558 blk64_t start_block, blk64_t end_block,
3560 ext2_extent_handle_t ehandle,
3563 struct ext2fs_extent extent;
3564 blk64_t blk, last_lblk;
3566 int is_dir, is_leaf;
3568 struct ext2_extent_info info;
3569 int failed_csum = 0;
3571 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
3574 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
3577 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
3578 !pb->eti.force_rebuild) {
3579 struct extent_tree_level *etl;
3581 etl = pb->eti.ext_info + info.curr_level;
3582 etl->num_extents += info.num_entries;
3583 etl->max_extents += info.max_entries;
3585 * Implementation wart: Splitting extent blocks when appending
3586 * will leave the old block with one free entry. Therefore
3587 * unless the node is totally full, pretend that a non-root
3588 * extent block can hold one fewer entry than it actually does,
3589 * so that we don't repeatedly rebuild the extent tree.
3591 if (info.curr_level && info.num_entries < info.max_entries)
3595 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
3597 while ((pctx->errcode == 0 ||
3598 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
3599 info.num_entries-- > 0) {
3600 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
3601 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
3602 last_lblk = extent.e_lblk + extent.e_len - 1;
3605 pctx->blk = extent.e_pblk;
3606 pctx->blk2 = extent.e_lblk;
3607 pctx->num = extent.e_len;
3608 pctx->blkcount = extent.e_lblk + extent.e_len;
3610 if (extent.e_pblk == 0 ||
3611 extent.e_pblk < ctx->fs->super->s_first_data_block ||
3612 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
3613 problem = PR_1_EXTENT_BAD_START_BLK;
3614 else if (extent.e_lblk < start_block)
3615 problem = PR_1_OUT_OF_ORDER_EXTENTS;
3616 else if ((end_block && last_lblk > end_block) &&
3617 !(last_lblk > eof_block &&
3618 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
3619 (pctx->inode->i_flags & EXT4_VERITY_FL))))
3620 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
3621 else if (is_leaf && extent.e_len == 0)
3622 problem = PR_1_EXTENT_LENGTH_ZERO;
3624 (extent.e_pblk + extent.e_len) >
3625 ext2fs_blocks_count(ctx->fs->super))
3626 problem = PR_1_EXTENT_ENDS_BEYOND;
3627 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
3628 !ext2fs_has_feature_largedir(ctx->fs->super) &&
3629 ((extent.e_lblk + extent.e_len) >
3630 (1U << (21 - ctx->fs->super->s_log_block_size))))
3631 problem = PR_1_TOOBIG_DIR;
3633 if (is_leaf && problem == 0 && extent.e_len > 0) {
3635 printf("extent_region(ino=%u, expect=%llu, "
3636 "lblk=%llu, len=%u)\n", pb->ino,
3637 (unsigned long long) pb->next_lblock,
3638 (unsigned long long) extent.e_lblk,
3641 if (extent.e_lblk < pb->next_lblock)
3642 problem = PR_1_EXTENT_COLLISION;
3643 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
3644 pb->next_lblock = extent.e_lblk + extent.e_len;
3648 * Uninitialized blocks in a directory? Clear the flag and
3649 * we'll interpret the blocks later.
3651 if (try_repairs && is_dir && problem == 0 &&
3652 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3653 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
3654 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3655 pb->inode_modified = 1;
3656 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3662 #ifdef CONFIG_DEVELOPER_FEATURES
3663 if (try_repairs && !is_dir && problem == 0 &&
3664 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
3665 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3666 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
3667 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3668 pb->inode_modified = 1;
3669 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3676 if (try_repairs && problem) {
3678 if (fix_problem(ctx, problem, pctx)) {
3679 if (ctx->invalid_bitmaps) {
3681 * If fsck knows the bitmaps are bad,
3682 * skip to the next extent and
3683 * try to clear this extent again
3684 * after fixing the bitmaps, by
3687 pctx->errcode = ext2fs_extent_get(
3689 EXT2_EXTENT_NEXT_SIB,
3691 ctx->flags |= E2F_FLAG_RESTART_LATER;
3692 if (pctx->errcode ==
3693 EXT2_ET_NO_CURRENT_NODE) {
3699 e2fsck_read_bitmaps(ctx);
3700 pb->inode_modified = 1;
3702 ext2fs_extent_delete(ehandle, 0);
3703 if (pctx->errcode) {
3704 pctx->str = "ext2fs_extent_delete";
3707 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3708 if (pctx->errcode &&
3709 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
3710 pctx->str = "ext2fs_extent_fix_parents";
3713 pctx->errcode = ext2fs_extent_get(ehandle,
3714 EXT2_EXTENT_CURRENT,
3716 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
3727 blk64_t lblk = extent.e_lblk;
3728 int next_try_repairs = 1;
3730 blk = extent.e_pblk;
3733 * If this lower extent block collides with critical
3734 * metadata, don't try to repair the damage. Pass 1b
3735 * will reallocate the block; then we can try again.
3737 if (pb->ino != EXT2_RESIZE_INO &&
3738 extent.e_pblk < ctx->fs->super->s_blocks_count &&
3739 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3741 next_try_repairs = 0;
3744 PR_1_CRITICAL_METADATA_COLLISION,
3746 if ((ctx->options & E2F_OPT_NO) == 0)
3747 ctx->flags |= E2F_FLAG_RESTART_LATER;
3749 pctx->errcode = ext2fs_extent_get(ehandle,
3750 EXT2_EXTENT_DOWN, &extent);
3751 if (pctx->errcode &&
3752 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
3753 pctx->str = "EXT2_EXTENT_DOWN";
3754 problem = PR_1_EXTENT_HEADER_INVALID;
3755 if (!next_try_repairs)
3757 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
3758 goto report_problem;
3761 /* The next extent should match this index's logical start */
3762 if (extent.e_lblk != lblk) {
3763 struct ext2_extent_info e_info;
3765 pctx->errcode = ext2fs_extent_get_info(ehandle,
3767 if (pctx->errcode) {
3768 pctx->str = "ext2fs_extent_get_info";
3772 pctx->blk2 = extent.e_lblk;
3773 pctx->num = e_info.curr_level - 1;
3774 problem = PR_1_EXTENT_INDEX_START_INVALID;
3775 if (fix_problem(ctx, problem, pctx)) {
3776 pb->inode_modified = 1;
3778 ext2fs_extent_fix_parents(ehandle);
3779 if (pctx->errcode) {
3780 pctx->str = "ext2fs_extent_fix_parents";
3785 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
3786 last_lblk, eof_block, ehandle,
3790 pctx->errcode = ext2fs_extent_get(ehandle,
3791 EXT2_EXTENT_UP, &extent);
3792 if (pctx->errcode) {
3793 pctx->str = "EXT2_EXTENT_UP";
3796 mark_block_used(ctx, blk);
3801 if ((pb->previous_block != 0) &&
3802 (pb->previous_block+1 != extent.e_pblk)) {
3803 if (ctx->options & E2F_OPT_FRAGCHECK) {
3808 else if (pb->is_reg)
3811 printf(("%6lu(%c): expecting %6lu "
3813 "phys %6lu log %lu len %lu\n"),
3814 (unsigned long) pctx->ino, type,
3815 (unsigned long) pb->previous_block+1,
3816 (unsigned long) extent.e_pblk,
3817 (unsigned long) extent.e_lblk,
3818 (unsigned long) extent.e_len);
3823 * If we notice a gap in the logical block mappings of an
3824 * extent-mapped directory, offer to close the hole by
3825 * moving the logical block down, otherwise we'll go mad in
3826 * pass 3 allocating empty directory blocks to fill the hole.
3828 if (try_repairs && is_dir &&
3829 pb->last_block + 1 < extent.e_lblk) {
3832 new_lblk = pb->last_block + 1;
3833 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3834 new_lblk = ((new_lblk +
3835 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3836 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3838 EXT2FS_CLUSTER_MASK(ctx->fs));
3839 pctx->blk = extent.e_lblk;
3840 pctx->blk2 = new_lblk;
3841 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3842 extent.e_lblk = new_lblk;
3843 pb->inode_modified = 1;
3844 pctx->errcode = ext2fs_extent_replace(ehandle,
3846 if (pctx->errcode) {
3850 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3852 goto failed_add_dir_block;
3853 pctx->errcode = ext2fs_extent_goto(ehandle,
3856 goto failed_add_dir_block;
3857 last_lblk = extent.e_lblk + extent.e_len - 1;
3863 while (++pb->last_db_block <
3864 (e2_blkcnt_t) extent.e_lblk) {
3865 pctx->errcode = ext2fs_add_dir_block2(
3869 if (pctx->errcode) {
3871 pctx->num = pb->last_db_block;
3872 goto failed_add_dir_block;
3876 for (i = 0; i < extent.e_len; i++) {
3877 pctx->errcode = ext2fs_add_dir_block2(
3882 if (pctx->errcode) {
3883 pctx->blk = extent.e_pblk + i;
3884 pctx->num = extent.e_lblk + i;
3885 failed_add_dir_block:
3886 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3887 /* Should never get here */
3888 ctx->flags |= E2F_FLAG_ABORT;
3892 if (extent.e_len > 0)
3893 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3895 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3899 for (i = 0; i < extent.e_len; i++) {
3900 pctx->blk = extent.e_lblk + i;
3901 pctx->blk2 = extent.e_pblk + i;
3902 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3903 mark_block_used(ctx, extent.e_pblk + i);
3904 mark_block_used(ctx, extent.e_pblk + i);
3909 * Check whether first cluster got marked in previous iteration.
3911 if (ctx->fs->cluster_ratio_bits &&
3912 pb->previous_block &&
3913 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3914 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3915 /* Set blk to the beginning of next cluster. */
3918 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3920 /* Set blk to the beginning of current cluster. */
3921 blk = EXT2FS_C2B(ctx->fs,
3922 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3924 if (blk < extent.e_pblk + extent.e_len) {
3925 mark_blocks_used(ctx, blk,
3926 extent.e_pblk + extent.e_len - blk);
3927 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3928 EXT2FS_CLUSTER_RATIO(ctx->fs));
3929 pb->num_blocks += n;
3931 pb->last_block = extent.e_lblk + extent.e_len - 1;
3932 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3933 start_block = pb->last_block = last_lblk;
3934 if (is_leaf && !is_dir &&
3935 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3936 pb->last_init_lblock = last_lblk;
3938 pctx->errcode = ext2fs_extent_get(ehandle,
3939 EXT2_EXTENT_NEXT_SIB,
3943 /* Failed csum but passes checks? Ask to fix checksum. */
3945 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3946 pb->inode_modified = 1;
3947 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3952 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3956 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3957 struct process_block_struct *pb)
3959 struct ext2_extent_info info;
3960 struct ext2_inode *inode = pctx->inode;
3961 ext2_extent_handle_t ehandle;
3962 ext2_filsys fs = ctx->fs;
3963 ext2_ino_t ino = pctx->ino;
3966 struct ext3_extent_header *eh;
3968 /* Check for a proper extent header... */
3969 eh = (struct ext3_extent_header *) &inode->i_block[0];
3970 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3972 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3973 e2fsck_clear_inode(ctx, ino, inode, 0,
3974 "check_blocks_extents");
3979 /* ...since this function doesn't fail if i_block is zeroed. */
3980 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3981 if (pctx->errcode) {
3982 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3983 e2fsck_clear_inode(ctx, ino, inode, 0,
3984 "check_blocks_extents");
3989 retval = ext2fs_extent_get_info(ehandle, &info);
3991 int max_depth = info.max_depth;
3993 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3994 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3995 ctx->extent_depth_count[max_depth]++;
3998 /* Check maximum extent depth */
3999 pctx->blk = info.max_depth;
4000 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4001 if (pctx->blk2 < pctx->blk &&
4002 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4003 pb->eti.force_rebuild = 1;
4005 /* Can we collect extent tree level stats? */
4006 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4007 if (pctx->blk2 > pctx->blk)
4008 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4009 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4010 pb->eti.ino = pb->ino;
4012 pb->next_lblock = 0;
4014 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4015 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4016 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4017 if (pctx->errcode &&
4018 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4020 inode->i_blocks = 0;
4021 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4022 "check_blocks_extents");
4025 ext2fs_extent_free(ehandle);
4027 /* Rebuild unless it's a dir and we're rehashing it */
4028 if (LINUX_S_ISDIR(inode->i_mode) &&
4029 e2fsck_dir_will_be_rehashed(ctx, ino))
4032 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4033 e2fsck_rebuild_extents_later(ctx, ino);
4035 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4039 * In fact we don't need to check blocks for an inode with inline data
4040 * because this inode doesn't have any blocks. In this function all
4041 * we need to do is add this inode into dblist when it is a directory.
4043 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4044 struct process_block_struct *pb)
4047 size_t inline_data_size = 0;
4054 /* Process the dirents in i_block[] as the "first" block. */
4055 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4059 /* Process the dirents in the EA as a "second" block. */
4060 flags = ctx->fs->flags;
4061 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4062 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4064 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4065 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4066 if (pctx->errcode) {
4071 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4074 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4082 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4083 ctx->flags |= E2F_FLAG_ABORT;
4087 * This subroutine is called on each inode to account for all of the
4088 * blocks used by that inode.
4090 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4091 char *block_buf, const struct ea_quota *ea_ibody_quota)
4093 ext2_filsys fs = ctx->fs;
4094 struct process_block_struct pb;
4095 ext2_ino_t ino = pctx->ino;
4096 struct ext2_inode *inode = pctx->inode;
4097 unsigned bad_size = 0;
4098 int dirty_inode = 0;
4102 struct ea_quota ea_block_quota;
4105 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4106 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4108 pb.last_init_lblock = -1;
4109 pb.last_db_block = -1;
4110 pb.num_illegal_blocks = 0;
4111 pb.suppress = 0; pb.clear = 0;
4114 pb.previous_block = 0;
4115 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4116 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4117 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4121 pb.inode_modified = 0;
4122 pb.eti.force_rebuild = 0;
4126 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4127 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4129 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4130 if (e2fsck_should_abort(ctx))
4132 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4135 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4136 check_blocks_inline_data(ctx, pctx, &pb);
4137 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4138 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4139 check_blocks_extents(ctx, pctx, &pb);
4143 * If we've modified the inode, write it out before
4144 * iterate() tries to use it.
4147 e2fsck_write_inode(ctx, ino, inode,
4152 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4153 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4154 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4155 block_buf, process_block, &pb);
4157 * We do not have uninitialized extents in non extent
4160 pb.last_init_lblock = pb.last_block;
4162 * If iterate() changed a block mapping, we have to
4163 * re-read the inode. If we decide to clear the
4164 * inode after clearing some stuff, we'll re-write the
4165 * bad mappings into the inode!
4167 if (pb.inode_modified)
4168 e2fsck_read_inode(ctx, ino, inode,
4170 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4171 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4173 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4175 printf("bmap rebuild ino=%d\n", ino);
4177 if (!LINUX_S_ISDIR(inode->i_mode) ||
4178 !e2fsck_dir_will_be_rehashed(ctx, ino))
4179 e2fsck_rebuild_extents_later(ctx, ino);
4183 end_problem_latch(ctx, PR_LATCH_BLOCK);
4184 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4185 if (e2fsck_should_abort(ctx))
4188 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4190 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4191 if (LINUX_S_ISDIR(inode->i_mode))
4192 ctx->fs_fragmented_dir++;
4194 ctx->fs_fragmented++;
4198 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4203 if (inode->i_flags & EXT2_INDEX_FL) {
4204 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4205 inode->i_flags &= ~EXT2_INDEX_FL;
4208 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4212 if (!pb.num_blocks && pb.is_dir &&
4213 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4214 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4215 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4216 ctx->fs_directory_count--;
4221 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4222 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4223 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4224 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4226 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4227 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4228 ino, (ea_ibody_quota ?
4229 ea_ibody_quota->inodes : 0) +
4230 ea_block_quota.inodes + 1);
4233 if (!ext2fs_has_feature_huge_file(fs->super) ||
4234 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4235 pb.num_blocks *= (fs->blocksize / 512);
4236 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4238 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4239 ino, inode->i_size, (unsigned long long) pb.last_block,
4240 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4241 (unsigned long long) pb.num_blocks);
4243 size = EXT2_I_SIZE(inode);
4245 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4246 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4251 flags = ctx->fs->flags;
4252 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4253 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4255 ctx->fs->flags = (flags &
4256 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4258 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4259 if (err || sz != size) {
4263 } else if (size & (fs->blocksize - 1))
4265 else if (nblock > (pb.last_block + 1))
4267 else if (nblock < (pb.last_block + 1)) {
4268 if (((pb.last_block + 1) - nblock) >
4269 fs->super->s_prealloc_dir_blocks)
4273 if ((pb.last_init_lblock >= 0) &&
4274 /* Do not allow initialized allocated blocks past i_size*/
4275 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4276 !(inode->i_flags & EXT4_VERITY_FL))
4278 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4279 size > ext2_max_sizes[fs->super->s_log_block_size])
4280 /* too big for a direct/indirect-mapped file */
4282 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4284 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4285 /* too big for an extent-based file - 32bit ee_block */
4288 /* i_size for symlinks is checked elsewhere */
4289 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4290 /* Did inline_data set pctx->num earlier? */
4292 pctx->num = (pb.last_block + 1) * fs->blocksize;
4293 pctx->group = bad_size;
4294 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4295 ext2fs_inode_size_set(fs, inode, pctx->num);
4296 if (EXT2_I_SIZE(inode) == 0 &&
4297 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4298 memset(inode->i_block, 0,
4299 sizeof(inode->i_block));
4300 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4306 if (LINUX_S_ISREG(inode->i_mode) &&
4307 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4309 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4310 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4311 (ext2fs_has_feature_huge_file(fs->super) &&
4312 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4313 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4314 pctx->num = pb.num_blocks;
4315 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4316 inode->i_blocks = pb.num_blocks;
4317 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4324 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4325 * a block mapped file, so rebuild it as an extent file. We can skip
4326 * symlinks because they're never rewritten.
4328 if (ext2fs_has_feature_bigalloc(fs->super) &&
4329 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4330 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4331 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4332 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4333 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4334 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4339 if (ctx->dirs_to_hash && pb.is_dir &&
4340 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4341 !(inode->i_flags & EXT2_INDEX_FL) &&
4342 ((inode->i_size / fs->blocksize) >= 3))
4343 e2fsck_rehash_dir_later(ctx, ino);
4347 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4352 * Helper function called by process block when an illegal block is
4353 * found. It returns a description about why the block is illegal
4355 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4359 static char problem[80];
4361 super = fs->super->s_first_data_block;
4362 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4363 if (block < super) {
4364 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4366 } else if (block >= ext2fs_blocks_count(fs->super)) {
4367 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4370 for (i = 0; i < fs->group_desc_count; i++) {
4371 if (block == super) {
4372 sprintf(problem, "is the superblock in group %d", i);
4375 if (block > super &&
4376 block <= (super + fs->desc_blocks)) {
4377 sprintf(problem, "is in the group descriptors "
4381 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4382 sprintf(problem, "is the block bitmap of group %d", i);
4385 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4386 sprintf(problem, "is the inode bitmap of group %d", i);
4389 if (block >= ext2fs_inode_table_loc(fs, i) &&
4390 (block < ext2fs_inode_table_loc(fs, i)
4391 + fs->inode_blocks_per_group)) {
4392 sprintf(problem, "is in the inode table of group %d",
4396 super += fs->super->s_blocks_per_group;
4403 * This is a helper function for check_blocks().
4405 static int process_block(ext2_filsys fs,
4407 e2_blkcnt_t blockcnt,
4408 blk64_t ref_block EXT2FS_ATTR((unused)),
4409 int ref_offset EXT2FS_ATTR((unused)),
4412 struct process_block_struct *p;
4413 struct problem_context *pctx;
4414 blk64_t blk = *block_nr;
4416 problem_t problem = 0;
4419 p = (struct process_block_struct *) priv_data;
4424 * For a directory, add logical block zero for processing even if it's
4425 * not mapped or we'll be perennially stuck with broken "." and ".."
4428 if (p->is_dir && blockcnt == 0 && blk == 0) {
4429 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4430 if (pctx->errcode) {
4432 pctx->num = blockcnt;
4433 goto failed_add_dir_block;
4442 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4447 * Simplistic fragmentation check. We merely require that the
4448 * file be contiguous. (Which can never be true for really
4449 * big files that are greater than a block group.)
4451 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4452 if (p->previous_block+1 != blk) {
4453 if (ctx->options & E2F_OPT_FRAGCHECK) {
4461 printf(_("%6lu(%c): expecting %6lu "
4462 "got phys %6lu (blkcnt %lld)\n"),
4463 (unsigned long) pctx->ino, type,
4464 (unsigned long) p->previous_block+1,
4465 (unsigned long) blk,
4466 (long long) blockcnt);
4472 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4473 !pctx->inode->i_size_high &&
4474 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4475 problem = PR_1_TOOBIG_DIR;
4476 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4477 problem = PR_1_TOOBIG_DIR;
4478 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4479 problem = PR_1_TOOBIG_REG;
4480 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4481 problem = PR_1_TOOBIG_SYMLINK;
4483 if (blk < fs->super->s_first_data_block ||
4484 blk >= ext2fs_blocks_count(fs->super))
4485 problem = PR_1_ILLEGAL_BLOCK_NUM;
4488 * If this IND/DIND/TIND block is squatting atop some critical metadata
4489 * (group descriptors, superblock, bitmap, inode table), any write to
4490 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
4491 * fix that and restart fsck.
4494 p->ino != EXT2_RESIZE_INO &&
4495 blk < ctx->fs->super->s_blocks_count &&
4496 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
4498 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
4499 if ((ctx->options & E2F_OPT_NO) == 0)
4500 ctx->flags |= E2F_FLAG_RESTART_LATER;
4504 p->num_illegal_blocks++;
4506 * A bit of subterfuge here -- we're trying to fix a block
4507 * mapping, but the IND/DIND/TIND block could have collided
4508 * with some critical metadata. So, fix the in-core mapping so
4509 * iterate won't go insane, but return 0 instead of
4510 * BLOCK_CHANGED so that it won't write the remapping out to
4511 * our multiply linked block.
4513 * Even if we previously determined that an *IND block
4514 * conflicts with critical metadata, we must still try to
4515 * iterate the *IND block as if it is an *IND block to find and
4516 * mark the blocks it points to. Better to be overly cautious
4517 * with the used_blocks map so that we don't move the *IND
4518 * block to a block that's really in use!
4520 if (p->ino != EXT2_RESIZE_INO &&
4522 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4527 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
4528 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
4532 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
4534 set_latch_flags(PR_LATCH_BLOCK,
4539 pctx->blkcount = blockcnt;
4540 if (fix_problem(ctx, problem, pctx)) {
4541 blk = *block_nr = 0;
4542 ret_code = BLOCK_CHANGED;
4543 p->inode_modified = 1;
4545 * If the directory block is too big and is beyond the
4546 * end of the FS, don't bother trying to add it for
4547 * processing -- the kernel would never have created a
4548 * directory this large, and we risk an ENOMEM abort.
4549 * In any case, the toobig handler for extent-based
4550 * directories also doesn't feed toobig blocks to
4553 if (problem == PR_1_TOOBIG_DIR)
4560 if (p->ino == EXT2_RESIZE_INO) {
4562 * The resize inode has already be sanity checked
4563 * during pass #0 (the superblock checks). All we
4564 * have to do is mark the double indirect block as
4565 * being in use; all of the other blocks are handled
4566 * by mark_table_blocks()).
4568 if (blockcnt == BLOCK_COUNT_DIND)
4569 mark_block_used(ctx, blk);
4571 } else if (!(ctx->fs->cluster_ratio_bits &&
4572 p->previous_block &&
4573 (EXT2FS_B2C(ctx->fs, blk) ==
4574 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
4575 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
4576 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
4577 mark_block_used(ctx, blk);
4579 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
4580 p->last_block, blk, blockcnt)) {
4581 pctx->blk = blockcnt;
4583 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4584 mark_block_used(ctx, blk);
4585 mark_block_used(ctx, blk);
4588 p->last_block = blockcnt;
4589 p->previous_block = blk;
4591 if (p->is_dir && (blockcnt >= 0)) {
4592 while (++p->last_db_block < blockcnt) {
4593 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
4596 if (pctx->errcode) {
4598 pctx->num = p->last_db_block;
4599 goto failed_add_dir_block;
4602 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
4604 if (pctx->errcode) {
4606 pctx->num = blockcnt;
4607 failed_add_dir_block:
4608 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4609 /* Should never get here */
4610 ctx->flags |= E2F_FLAG_ABORT;
4617 static int process_bad_block(ext2_filsys fs,
4619 e2_blkcnt_t blockcnt,
4620 blk64_t ref_block EXT2FS_ATTR((unused)),
4621 int ref_offset EXT2FS_ATTR((unused)),
4624 struct process_block_struct *p;
4625 blk64_t blk = *block_nr;
4626 blk64_t first_block;
4628 struct problem_context *pctx;
4634 p = (struct process_block_struct *) priv_data;
4638 pctx->ino = EXT2_BAD_INO;
4640 pctx->blkcount = blockcnt;
4642 if ((blk < fs->super->s_first_data_block) ||
4643 (blk >= ext2fs_blocks_count(fs->super))) {
4644 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
4646 return BLOCK_CHANGED;
4652 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
4654 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
4656 return BLOCK_CHANGED;
4658 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4661 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
4664 return BLOCK_CHANGED;
4666 if (e2fsck_should_abort(ctx))
4669 mark_block_used(ctx, blk);
4673 printf ("DEBUG: Marking %u as bad.\n", blk);
4675 ctx->fs_badblocks_count++;
4677 * If the block is not used, then mark it as used and return.
4678 * If it is already marked as found, this must mean that
4679 * there's an overlap between the filesystem table blocks
4680 * (bitmaps and inode table) and the bad block list.
4682 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
4683 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4687 * Try to find the where the filesystem block was used...
4689 first_block = fs->super->s_first_data_block;
4691 for (i = 0; i < fs->group_desc_count; i++ ) {
4694 if (!ext2fs_bg_has_super(fs, i))
4696 if (blk == first_block) {
4698 if (fix_problem(ctx,
4699 PR_1_BAD_PRIMARY_SUPERBLOCK,
4702 return BLOCK_CHANGED;
4706 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
4709 if ((blk > first_block) &&
4710 (blk <= first_block + fs->desc_blocks)) {
4712 pctx->blk = *block_nr;
4713 if (fix_problem(ctx,
4714 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
4716 return BLOCK_CHANGED;
4720 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
4724 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
4725 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
4726 ctx->invalid_block_bitmap_flag[i]++;
4727 ctx->invalid_bitmaps++;
4731 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
4732 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
4733 ctx->invalid_inode_bitmap_flag[i]++;
4734 ctx->invalid_bitmaps++;
4738 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
4739 (blk < (ext2fs_inode_table_loc(fs, i) +
4740 fs->inode_blocks_per_group))) {
4742 * If there are bad blocks in the inode table,
4743 * the inode scan code will try to do
4744 * something reasonable automatically.
4748 first_block += fs->super->s_blocks_per_group;
4751 * If we've gotten to this point, then the only
4752 * possibility is that the bad block inode meta data
4753 * is using a bad block.
4755 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
4756 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
4757 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
4759 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
4761 return BLOCK_CHANGED;
4763 if (e2fsck_should_abort(ctx))
4770 /* Warn user that the block wasn't claimed */
4771 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
4776 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
4777 const char *name, int num, blk64_t *new_block)
4779 ext2_filsys fs = ctx->fs;
4781 blk64_t old_block = *new_block;
4784 unsigned flexbg_size;
4787 struct problem_context pctx;
4789 clear_problem_context(&pctx);
4792 pctx.blk = old_block;
4796 * For flex_bg filesystems, first try to allocate the metadata
4797 * within the flex_bg, and if that fails then try finding the
4798 * space anywhere in the filesystem.
4800 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
4802 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
4803 flexbg = group / flexbg_size;
4804 first_block = ext2fs_group_first_block2(fs,
4805 flexbg_size * flexbg);
4806 last_grp = group | (flexbg_size - 1);
4807 if (last_grp >= fs->group_desc_count)
4808 last_grp = fs->group_desc_count - 1;
4809 last_block = ext2fs_group_last_block2(fs, last_grp);
4811 last_block = ext2fs_group_last_block2(fs, group);
4812 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
4813 num, ctx->block_found_map,
4815 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
4816 pctx.errcode = ext2fs_get_free_blocks2(fs,
4817 fs->super->s_first_data_block,
4818 ext2fs_blocks_count(fs->super),
4819 num, ctx->block_found_map, new_block);
4822 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
4823 ext2fs_unmark_valid(fs);
4824 ctx->flags |= E2F_FLAG_ABORT;
4827 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4829 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4830 ext2fs_unmark_valid(fs);
4831 ctx->flags |= E2F_FLAG_ABORT;
4834 ext2fs_mark_super_dirty(fs);
4835 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4836 pctx.blk2 = *new_block;
4837 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4838 PR_1_RELOC_TO), &pctx);
4840 for (i = 0; i < num; i++) {
4842 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4844 pctx.errcode = io_channel_read_blk64(fs->io,
4845 old_block + i, 1, buf);
4847 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4848 pctx.blk = (*new_block) + i;
4849 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4852 pctx.blk = (*new_block) + i;
4853 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4858 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4860 ext2fs_free_mem(&buf);
4864 * This routine gets called at the end of pass 1 if bad blocks are
4865 * detected in the superblock, group descriptors, inode_bitmaps, or
4866 * block bitmaps. At this point, all of the blocks have been mapped
4867 * out, so we can try to allocate new block(s) to replace the bad
4870 static void handle_fs_bad_blocks(e2fsck_t ctx)
4872 ext2_filsys fs = ctx->fs;
4874 blk64_t first_block;
4877 for (i = 0; i < fs->group_desc_count; i++) {
4878 first_block = ext2fs_group_first_block2(fs, i);
4880 if (ctx->invalid_block_bitmap_flag[i]) {
4881 new_blk = ext2fs_block_bitmap_loc(fs, i);
4882 new_table_block(ctx, first_block, i, _("block bitmap"),
4884 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4886 if (ctx->invalid_inode_bitmap_flag[i]) {
4887 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4888 new_table_block(ctx, first_block, i, _("inode bitmap"),
4890 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4892 if (ctx->invalid_inode_table_flag[i]) {
4893 new_blk = ext2fs_inode_table_loc(fs, i);
4894 new_table_block(ctx, first_block, i, _("inode table"),
4895 fs->inode_blocks_per_group,
4897 ext2fs_inode_table_loc_set(fs, i, new_blk);
4898 ctx->flags |= E2F_FLAG_RESTART;
4901 ctx->invalid_bitmaps = 0;
4905 * This routine marks all blocks which are used by the superblock,
4906 * group descriptors, inode bitmaps, and block bitmaps.
4908 static void mark_table_blocks(e2fsck_t ctx)
4910 ext2_filsys fs = ctx->fs;
4914 struct problem_context pctx;
4916 clear_problem_context(&pctx);
4918 for (i = 0; i < fs->group_desc_count; i++) {
4921 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4922 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4925 * Mark the blocks used for the inode table
4927 if (ext2fs_inode_table_loc(fs, i)) {
4928 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4929 j < fs->inode_blocks_per_group;
4931 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4934 if (!ctx->invalid_inode_table_flag[i] &&
4936 PR_1_ITABLE_CONFLICT, &pctx)) {
4937 ctx->invalid_inode_table_flag[i]++;
4938 ctx->invalid_bitmaps++;
4941 ext2fs_mark_block_bitmap2(
4942 ctx->block_found_map, b);
4943 ext2fs_mark_block_bitmap2(
4944 ctx->block_metadata_map, b);
4950 * Mark block used for the block bitmap
4952 if (ext2fs_block_bitmap_loc(fs, i)) {
4953 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4954 ext2fs_block_bitmap_loc(fs, i))) {
4955 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4956 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4957 ctx->invalid_block_bitmap_flag[i]++;
4958 ctx->invalid_bitmaps++;
4961 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4962 ext2fs_block_bitmap_loc(fs, i));
4963 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4964 ext2fs_block_bitmap_loc(fs, i));
4968 * Mark block used for the inode bitmap
4970 if (ext2fs_inode_bitmap_loc(fs, i)) {
4971 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4972 ext2fs_inode_bitmap_loc(fs, i))) {
4973 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4974 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4975 ctx->invalid_inode_bitmap_flag[i]++;
4976 ctx->invalid_bitmaps++;
4979 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4980 ext2fs_inode_bitmap_loc(fs, i));
4981 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4982 ext2fs_inode_bitmap_loc(fs, i));
4989 * These subroutines short circuits ext2fs_get_blocks and
4990 * ext2fs_check_directory; we use them since we already have the inode
4991 * structure, so there's no point in letting the ext2fs library read
4994 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4997 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5000 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5001 return EXT2_ET_CALLBACK_NOTHANDLED;
5003 for (i=0; i < EXT2_N_BLOCKS; i++)
5004 blocks[i] = ctx->stashed_inode->i_block[i];
5008 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5009 struct ext2_inode *inode)
5011 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5013 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5014 return EXT2_ET_CALLBACK_NOTHANDLED;
5015 *inode = *ctx->stashed_inode;
5019 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5020 struct ext2_inode *inode)
5022 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5024 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5025 (inode != ctx->stashed_inode))
5026 *ctx->stashed_inode = *inode;
5027 return EXT2_ET_CALLBACK_NOTHANDLED;
5030 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5032 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5034 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5035 return EXT2_ET_CALLBACK_NOTHANDLED;
5037 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5038 return EXT2_ET_NO_DIRECTORY;
5042 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5045 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5049 if (ctx->block_found_map) {
5050 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5054 if (fs->block_map) {
5055 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5056 ext2fs_mark_bb_dirty(fs);
5059 if (!fs->block_map) {
5060 retval = ext2fs_read_block_bitmap(fs);
5065 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5074 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5075 blk64_t len, blk64_t *pblk, blk64_t *plen)
5077 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5080 if (ctx->block_found_map)
5081 return ext2fs_new_range(fs, flags, goal, len,
5082 ctx->block_found_map, pblk, plen);
5084 if (!fs->block_map) {
5085 retval = ext2fs_read_block_bitmap(fs);
5090 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5094 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5096 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5098 /* Never free a critical metadata block */
5099 if (ctx->block_found_map &&
5100 ctx->block_metadata_map &&
5102 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5105 if (ctx->block_found_map) {
5107 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5109 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5113 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5114 blk_t num, int inuse)
5116 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5118 /* Never free a critical metadata block */
5119 if (ctx->block_found_map &&
5120 ctx->block_metadata_map &&
5122 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5125 if (ctx->block_found_map) {
5127 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5130 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5135 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5137 ext2_filsys fs = ctx->fs;
5139 if (use_shortcuts) {
5140 fs->get_blocks = pass1_get_blocks;
5141 fs->check_directory = pass1_check_directory;
5142 fs->read_inode = pass1_read_inode;
5143 fs->write_inode = pass1_write_inode;
5144 ctx->stashed_ino = 0;
5147 fs->check_directory = 0;
5149 fs->write_inode = 0;
5153 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5155 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5156 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5157 e2fsck_block_alloc_stats, 0);
5158 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5159 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5160 e2fsck_block_alloc_stats_range, NULL);