2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
29 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * Pass 1 is designed to stash away enough information so that the
32 * other passes should not need to read in the inode information
33 * during the normal course of a filesystem check. (Although if an
34 * inconsistency is detected, other passes may need to read in an
37 * Note that pass 1B will be invoked if there are any duplicate blocks
41 #define _GNU_SOURCE 1 /* get strnlen() */
50 #include <ext2fs/ext2_ext_attr.h>
54 #ifdef NO_INLINE_FUNCS
57 #define _INLINE_ inline
67 static int process_block(ext2_filsys fs, blk64_t *blocknr,
68 e2_blkcnt_t blockcnt, blk64_t ref_blk,
69 int ref_offset, void *priv_data);
70 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
71 e2_blkcnt_t blockcnt, blk64_t ref_blk,
72 int ref_offset, void *priv_data);
73 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
75 const struct ea_quota *ea_ibody_quota);
76 static void mark_table_blocks(e2fsck_t ctx);
77 static void alloc_bb_map(e2fsck_t ctx);
78 static void alloc_imagic_map(e2fsck_t ctx);
79 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
80 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino);
81 static void handle_fs_bad_blocks(e2fsck_t ctx);
82 static void process_inodes(e2fsck_t ctx, char *block_buf);
83 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
84 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
85 dgrp_t group, void * priv_data);
86 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
87 char *block_buf, int adjust_sign);
88 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
90 struct process_block_struct {
92 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
93 fragmented:1, compressed:1, bbcheck:1,
98 e2_blkcnt_t last_init_lblock;
99 e2_blkcnt_t last_db_block;
100 int num_illegal_blocks;
101 blk64_t previous_block;
102 struct ext2_inode *inode;
103 struct problem_context *pctx;
104 ext2fs_block_bitmap fs_meta_blocks;
107 struct extent_tree_info eti;
110 struct process_inode_block {
112 struct ea_quota ea_ibody_quota;
113 struct ext2_inode_large inode;
116 struct scan_callback_struct {
122 * For the inodes to process list.
124 static struct process_inode_block *inodes_to_process;
125 static int process_inode_count;
127 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
128 EXT2_MIN_BLOCK_LOG_SIZE + 1];
131 * Free all memory allocated by pass1 in preparation for restarting
134 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
136 ext2fs_free_mem(&inodes_to_process);
137 inodes_to_process = 0;
141 * Check to make sure a device inode is real. Returns 1 if the device
142 * checks out, 0 if not.
144 * Note: this routine is now also used to check FIFO's and Sockets,
145 * since they have the same requirement; the i_block fields should be
148 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
149 struct ext2_inode *inode)
154 * If the index flag is set, then this is a bogus
157 if (inode->i_flags & EXT2_INDEX_FL)
161 * We should be able to do the test below all the time, but
162 * because the kernel doesn't forcibly clear the device
163 * inode's additional i_block fields, there are some rare
164 * occasions when a legitimate device inode will have non-zero
165 * additional i_block fields. So for now, we only complain
166 * when the immutable flag is set, which should never happen
167 * for devices. (And that's when the problem is caused, since
168 * you can't set or clear immutable flags for devices.) Once
169 * the kernel has been fixed we can change this...
171 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
172 for (i=4; i < EXT2_N_BLOCKS; i++)
173 if (inode->i_block[i])
180 * Check to make sure a symlink inode is real. Returns 1 if the symlink
181 * checks out, 0 if not.
183 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
184 struct ext2_inode *inode, char *buf)
189 if ((inode->i_size_high || inode->i_size == 0) ||
190 (inode->i_flags & EXT2_INDEX_FL))
193 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
196 if (inode->i_flags & EXT4_EXTENTS_FL)
198 if (ext2fs_inline_data_size(fs, ino, &inline_size))
200 if (inode->i_size != inline_size)
206 if (ext2fs_is_fast_symlink(inode)) {
207 if (inode->i_flags & EXT4_EXTENTS_FL)
209 buf = (char *)inode->i_block;
210 buflen = sizeof(inode->i_block);
212 ext2_extent_handle_t handle;
213 struct ext2_extent_info info;
214 struct ext2fs_extent extent;
218 if (inode->i_flags & EXT4_EXTENTS_FL) {
219 if (ext2fs_extent_open2(fs, ino, inode, &handle))
221 if (ext2fs_extent_get_info(handle, &info) ||
222 (info.num_entries != 1) ||
223 (info.max_depth != 0)) {
224 ext2fs_extent_free(handle);
227 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
229 (extent.e_lblk != 0) ||
230 (extent.e_len != 1)) {
231 ext2fs_extent_free(handle);
235 ext2fs_extent_free(handle);
237 blk = inode->i_block[0];
239 for (i = 1; i < EXT2_N_BLOCKS; i++)
240 if (inode->i_block[i])
244 if (blk < fs->super->s_first_data_block ||
245 blk >= ext2fs_blocks_count(fs->super))
248 if (io_channel_read_blk64(fs->io, blk, 1, buf))
251 buflen = fs->blocksize;
254 if (inode->i_flags & EXT4_ENCRYPT_FL)
255 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
257 len = strnlen(buf, buflen);
262 if (len != inode->i_size)
268 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
270 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
271 static void check_extents_inlinedata(e2fsck_t ctx,
272 struct problem_context *pctx)
274 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
277 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
280 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
281 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
283 #undef BAD_SPECIAL_FLAGS
286 * If the immutable (or append-only) flag is set on the inode, offer
289 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
290 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
292 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
295 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
298 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
299 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
303 * If device, fifo or socket, check size is zero -- if not offer to
306 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
308 struct ext2_inode *inode = pctx->inode;
310 if (EXT2_I_SIZE(inode) == 0)
313 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
316 ext2fs_inode_size_set(ctx->fs, inode, 0);
317 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
321 * For a given size, calculate how many blocks would be charged towards quota.
323 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
327 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
328 return EXT2FS_C2B(fs, clusters);
332 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
335 static problem_t check_large_ea_inode(e2fsck_t ctx,
336 struct ext2_ext_attr_entry *entry,
337 struct problem_context *pctx,
338 blk64_t *quota_blocks)
340 struct ext2_inode inode;
344 /* Check if inode is within valid range */
345 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
346 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
347 pctx->num = entry->e_value_inum;
348 return PR_1_ATTR_VALUE_EA_INODE;
351 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
353 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
355 com_err("check_large_ea_inode", retval,
356 _("while hashing entry with e_value_inum = %u"),
357 entry->e_value_inum);
361 if (hash == entry->e_hash) {
362 *quota_blocks = size_to_quota_blocks(ctx->fs,
363 entry->e_value_size);
365 /* This might be an old Lustre-style ea_inode reference. */
366 if (inode.i_mtime == pctx->ino &&
367 inode.i_generation == pctx->inode->i_generation) {
370 /* If target inode is also missing EA_INODE flag,
371 * this is likely to be a bad reference.
373 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
374 pctx->num = entry->e_value_inum;
375 return PR_1_ATTR_VALUE_EA_INODE;
377 pctx->num = entry->e_hash;
378 return PR_1_ATTR_HASH;
383 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
384 pctx->num = entry->e_value_inum;
385 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
386 inode.i_flags |= EXT4_EA_INODE_FL;
387 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
390 return PR_1_ATTR_NO_EA_INODE_FL;
396 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
397 struct ext2_ext_attr_entry *first, void *end)
399 struct ext2_ext_attr_entry *entry;
402 (void *)entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry);
403 entry = EXT2_EXT_ATTR_NEXT(entry)) {
404 if (!entry->e_value_inum)
406 if (!ctx->ea_inode_refs) {
407 pctx->errcode = ea_refcount_create(0,
408 &ctx->ea_inode_refs);
411 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
412 ctx->flags |= E2F_FLAG_ABORT;
416 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
421 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
422 struct ea_quota *ea_ibody_quota)
424 struct ext2_super_block *sb = ctx->fs->super;
425 struct ext2_inode_large *inode;
426 struct ext2_ext_attr_entry *entry;
427 char *start, *header, *end;
428 unsigned int storage_size, remain;
429 problem_t problem = 0;
432 ea_ibody_quota->blocks = 0;
433 ea_ibody_quota->inodes = 0;
435 inode = (struct ext2_inode_large *) pctx->inode;
436 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
437 inode->i_extra_isize;
438 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
439 inode->i_extra_isize;
440 end = header + storage_size;
441 start = header + sizeof(__u32);
442 entry = (struct ext2_ext_attr_entry *) start;
444 /* scan all entry's headers first */
446 /* take finish entry 0UL into account */
447 remain = storage_size - sizeof(__u32);
449 region = region_create(0, storage_size);
451 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
453 ctx->flags |= E2F_FLAG_ABORT;
456 if (region_allocate(region, 0, sizeof(__u32))) {
457 problem = PR_1_INODE_EA_ALLOC_COLLISION;
461 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
462 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
465 if (region_allocate(region, (char *)entry - (char *)header,
466 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
467 problem = PR_1_INODE_EA_ALLOC_COLLISION;
471 /* header eats this space */
472 remain -= sizeof(struct ext2_ext_attr_entry);
474 /* is attribute name valid? */
475 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
476 pctx->num = entry->e_name_len;
477 problem = PR_1_ATTR_NAME_LEN;
481 /* attribute len eats this space */
482 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
484 if (entry->e_value_inum == 0) {
485 /* check value size */
486 if (entry->e_value_size > remain) {
487 pctx->num = entry->e_value_size;
488 problem = PR_1_ATTR_VALUE_SIZE;
492 if (entry->e_value_size &&
493 region_allocate(region,
494 sizeof(__u32) + entry->e_value_offs,
496 entry->e_value_size))) {
497 problem = PR_1_INODE_EA_ALLOC_COLLISION;
501 hash = ext2fs_ext_attr_hash_entry(entry,
502 start + entry->e_value_offs);
504 /* e_hash may be 0 in older inode's ea */
505 if (entry->e_hash != 0 && entry->e_hash != hash) {
506 pctx->num = entry->e_hash;
507 problem = PR_1_ATTR_HASH;
511 blk64_t quota_blocks;
513 problem = check_large_ea_inode(ctx, entry, pctx,
518 ea_ibody_quota->blocks += quota_blocks;
519 ea_ibody_quota->inodes++;
522 /* If EA value is stored in external inode then it does not
523 * consume space here */
524 if (entry->e_value_inum == 0)
525 remain -= entry->e_value_size;
527 entry = EXT2_EXT_ATTR_NEXT(entry);
530 if (region_allocate(region, (char *)entry - (char *)header,
532 problem = PR_1_INODE_EA_ALLOC_COLLISION;
539 * it seems like a corruption. it's very unlikely we could repair
540 * EA(s) in automatic fashion -bzzz
542 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
543 inc_ea_inode_refs(ctx, pctx,
544 (struct ext2_ext_attr_entry *)start, end);
548 /* simply remove all possible EA(s) */
549 *((__u32 *)header) = 0UL;
550 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
551 EXT2_INODE_SIZE(sb), "pass1");
552 ea_ibody_quota->blocks = 0;
553 ea_ibody_quota->inodes = 0;
556 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
557 return (xtime & (1U << 31)) != 0 &&
558 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
561 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
562 check_inode_extra_negative_epoch(inode->i_##xtime, \
563 inode->i_##xtime##_extra)
565 /* When today's date is earlier than 2242, we assume that atimes,
566 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
567 * actually pre-1970 dates mis-encoded.
569 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
571 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
572 struct ea_quota *ea_ibody_quota)
574 struct ext2_super_block *sb = ctx->fs->super;
575 struct ext2_inode_large *inode;
579 ea_ibody_quota->blocks = 0;
580 ea_ibody_quota->inodes = 0;
582 inode = (struct ext2_inode_large *) pctx->inode;
583 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
584 /* this isn't large inode. so, nothing to check */
589 printf("inode #%u, i_extra_size %d\n", pctx->ino,
590 inode->i_extra_isize);
592 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
593 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
594 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
596 * For now we will allow i_extra_isize to be 0, but really
597 * implementations should never allow i_extra_isize to be 0
599 if (inode->i_extra_isize &&
600 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
601 inode->i_extra_isize & 3)) {
602 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
604 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
605 inode->i_extra_isize = sb->s_want_extra_isize;
607 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
608 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
609 EXT2_INODE_SIZE(sb), "pass1");
612 /* check if there is no place for an EA header */
613 if (inode->i_extra_isize >= max - sizeof(__u32))
616 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
617 inode->i_extra_isize);
618 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
619 /* it seems inode has an extended attribute(s) in body */
620 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
624 * If the inode's extended atime (ctime, crtime, mtime) is stored in
625 * the old, invalid format, repair it.
627 if (((sizeof(time_t) <= 4) ||
628 (((sizeof(time_t) > 4) &&
629 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
630 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
631 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
632 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
633 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
635 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
638 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
639 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
640 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
641 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
642 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
643 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
644 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
645 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
646 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
647 EXT2_INODE_SIZE(sb), "pass1");
653 * Check to see if the inode might really be a directory, despite i_mode
655 * This is a lot of complexity for something for which I'm not really
656 * convinced happens frequently in the wild. If for any reason this
657 * causes any problems, take this code out.
658 * [tytso:20070331.0827EDT]
660 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
663 struct ext2_inode *inode = pctx->inode;
664 struct ext2_dir_entry *dirent;
667 unsigned int i, rec_len, not_device = 0;
672 * If the mode looks OK, we believe it. If the first block in
673 * the i_block array is 0, this cannot be a directory. If the
674 * inode is extent-mapped, it is still the case that the latter
675 * cannot be 0 - the magic number in the extent header would make
678 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
679 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
683 * Check the block numbers in the i_block array for validity:
684 * zero blocks are skipped (but the first one cannot be zero -
685 * see above), other blocks are checked against the first and
686 * max data blocks (from the the superblock) and against the
687 * block bitmap. Any invalid block found means this cannot be
690 * If there are non-zero blocks past the fourth entry, then
691 * this cannot be a device file: we remember that for the next
694 * For extent mapped files, we don't do any sanity checking:
695 * just try to get the phys block of logical block 0 and run
698 * For inline data files, we just try to get the size of inline
699 * data. If it's true, we will treat it as a directory.
702 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
703 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
704 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
707 unsigned int rec_len2;
708 struct ext2_dir_entry de;
710 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
713 * If the size isn't a multiple of 4, it's probably not a
719 * If the first 10 bytes don't look like a directory entry,
720 * it's probably not a directory.
722 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
723 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
724 EXT2_DIR_REC_LEN(0));
725 dotdot = ext2fs_le32_to_cpu(dotdot);
726 de.inode = ext2fs_le32_to_cpu(de.inode);
727 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
728 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
729 if (dotdot >= ctx->fs->super->s_inodes_count ||
730 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
731 dotdot != EXT2_ROOT_INO) ||
732 de.inode >= ctx->fs->super->s_inodes_count ||
733 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
735 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
736 EXT4_INLINE_DATA_DOTDOT_SIZE)
738 /* device files never have a "system.data" entry */
740 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
742 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
745 /* device files are never extent mapped */
748 for (i=0; i < EXT2_N_BLOCKS; i++) {
749 blk = inode->i_block[i];
755 if (blk < ctx->fs->super->s_first_data_block ||
756 blk >= ext2fs_blocks_count(ctx->fs->super) ||
757 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
759 return; /* Invalid block, can't be dir */
761 blk = inode->i_block[0];
765 * If the mode says this is a device file and the i_links_count field
766 * is sane and we have not ruled it out as a device file previously,
767 * we declare it a device file, not a directory.
769 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
770 (inode->i_links_count == 1) && !not_device)
773 /* read the first block */
774 ehandler_operation(_("reading directory block"));
775 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
776 ehandler_operation(0);
780 dirent = (struct ext2_dir_entry *) buf;
781 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
784 if ((ext2fs_dirent_name_len(dirent) != 1) ||
785 (dirent->name[0] != '.') ||
786 (dirent->inode != pctx->ino) ||
789 (rec_len >= ctx->fs->blocksize - 12))
792 dirent = (struct ext2_dir_entry *) (buf + rec_len);
793 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
796 if ((ext2fs_dirent_name_len(dirent) != 2) ||
797 (dirent->name[0] != '.') ||
798 (dirent->name[1] != '.') ||
804 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
805 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
806 e2fsck_write_inode_full(ctx, pctx->ino, inode,
807 EXT2_INODE_SIZE(ctx->fs->super),
808 "check_is_really_dir");
812 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
813 int flags, ext2_icount_t hint,
816 unsigned int threshold;
817 unsigned int save_type;
826 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
828 profile_get_uint(ctx->profile, "scratch_files",
829 "numdirs_threshold", 0, 0, &threshold);
830 profile_get_boolean(ctx->profile, "scratch_files",
831 "icount", 0, 1, &enable);
833 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
835 num_dirs = 1024; /* Guess */
837 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
838 (!threshold || num_dirs > threshold)) {
839 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
844 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
846 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
847 flags |= EXT2_ICOUNT_OPT_FULLMAP;
848 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
849 ctx->fs->default_bitmap_type = save_type;
853 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
855 struct problem_context *pctx)
858 struct ext2_inode_large inode;
861 * Reread inode. If we don't see checksum error, then this inode
862 * has been fixed elsewhere.
864 ctx->stashed_ino = 0;
865 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
867 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
873 * Checksum still doesn't match. That implies that the inode passes
874 * all the sanity checks, so maybe the checksum is simply corrupt.
875 * See if the user will go for fixing that.
877 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
880 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
885 static void reserve_block_for_root_repair(e2fsck_t ctx)
889 ext2_filsys fs = ctx->fs;
891 ctx->root_repair_block = 0;
892 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
895 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
898 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
899 ctx->root_repair_block = blk;
902 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
906 ext2_filsys fs = ctx->fs;
907 static const char name[] = "lost+found";
910 ctx->lnf_repair_block = 0;
911 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
914 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
917 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
918 ctx->lnf_repair_block = blk;
921 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
925 struct ext2_xattr_handle *handle;
928 retval = ext2fs_xattrs_open(fs, ino, &handle);
932 retval = ext2fs_xattrs_read(handle);
936 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
941 (void) ext2fs_xattrs_close(&handle);
945 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
946 struct problem_context *pctx,
953 * If the inode failed the checksum and the user didn't
954 * clear the inode, test the checksum again -- if it still
955 * fails, ask the user if the checksum should be corrected.
957 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
959 ctx->flags |= E2F_FLAG_ABORT;
961 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
963 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
964 if ((ctx)->flags & E2F_FLAG_ABORT) \
968 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
973 for (i = 0; i < EXT2_N_BLOCKS; i++) {
974 x = inode->i_block[i];
975 #ifdef WORDS_BIGENDIAN
976 x = ext2fs_swab32(x);
978 if (x >= ext2fs_blocks_count(fs->super))
986 * Figure out what to do with an inode that has both extents and inline data
987 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
989 static int fix_inline_data_extents_file(e2fsck_t ctx,
991 struct ext2_inode *inode,
993 struct problem_context *pctx)
995 size_t max_inline_ea_size;
996 ext2_filsys fs = ctx->fs;
999 /* Both feature flags not set? Just run the regular checks */
1000 if (!ext2fs_has_feature_extents(fs->super) &&
1001 !ext2fs_has_feature_inline_data(fs->super))
1004 /* Clear both flags if it's a special file */
1005 if (LINUX_S_ISCHR(inode->i_mode) ||
1006 LINUX_S_ISBLK(inode->i_mode) ||
1007 LINUX_S_ISFIFO(inode->i_mode) ||
1008 LINUX_S_ISSOCK(inode->i_mode)) {
1009 check_extents_inlinedata(ctx, pctx);
1013 /* If it looks like an extent tree, try to clear inlinedata */
1014 if (ext2fs_extent_header_verify(inode->i_block,
1015 sizeof(inode->i_block)) == 0 &&
1016 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1017 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1022 /* If it looks short enough to be inline data, try to clear extents */
1023 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1024 max_inline_ea_size = inode_size -
1025 (EXT2_GOOD_OLD_INODE_SIZE +
1026 ((struct ext2_inode_large *)inode)->i_extra_isize);
1028 max_inline_ea_size = 0;
1029 if (EXT2_I_SIZE(inode) <
1030 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1031 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1032 inode->i_flags &= ~EXT4_EXTENTS_FL;
1038 * Too big for inline data, but no evidence of extent tree -
1039 * maybe it's a block map file? If the mappings all look valid?
1041 if (could_be_block_map(fs, inode) &&
1042 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1043 #ifdef WORDS_BIGENDIAN
1046 for (i = 0; i < EXT2_N_BLOCKS; i++)
1047 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1050 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1055 /* Oh well, just clear the busted inode. */
1056 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1057 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1063 e2fsck_write_inode(ctx, ino, inode, "pass1");
1068 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1070 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1071 dgrp_t start = *group, grp;
1072 blk64_t blocks_to_read = 0;
1073 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1075 if (ctx->readahead_kb == 0)
1078 /* Keep iterating groups until we have enough to readahead */
1079 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1080 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1081 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1083 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1084 ext2fs_bg_itable_unused(ctx->fs, grp);
1085 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1087 if (blocks_to_read * ctx->fs->blocksize >
1088 ctx->readahead_kb * 1024)
1092 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1094 if (err == EAGAIN) {
1095 ctx->readahead_kb /= 2;
1101 /* Error; disable itable readahead */
1102 *group = ctx->fs->group_desc_count;
1103 *next_ino = ctx->fs->super->s_inodes_count;
1106 * Don't do more readahead until we've reached the first inode
1107 * of the last inode scan buffer block for the last group.
1110 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1111 ctx->inode_buffer_blocks :
1112 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1113 ctx->fs->blocksize /
1114 EXT2_INODE_SIZE(ctx->fs->super);
1116 *next_ino = inodes_in_group -
1117 (inodes_in_group % inodes_per_buffer) + 1 +
1118 (grp * ctx->fs->super->s_inodes_per_group);
1123 * Check if the passed ino is one of the used superblock quota inodes.
1125 * Before the quota inodes were journaled, older superblock quota inodes
1126 * were just regular files in the filesystem and not reserved inodes. This
1127 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1128 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1130 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1132 enum quota_type qtype;
1134 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1135 if (*quota_sb_inump(sb, qtype) == ino)
1142 * Check if the passed ino is one of the reserved quota inodes.
1143 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1144 * inodes. These inodes may or may not be in use by the quota feature.
1146 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1148 enum quota_type qtype;
1150 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1151 if (quota_type2inum(qtype, fs->super) == ino)
1157 void e2fsck_pass1(e2fsck_t ctx)
1161 ext2_filsys fs = ctx->fs;
1163 struct ext2_inode *inode = NULL;
1164 ext2_inode_scan scan = NULL;
1165 char *block_buf = NULL;
1166 #ifdef RESOURCE_TRACK
1167 struct resource_track rtrack;
1169 unsigned char frag, fsize;
1170 struct problem_context pctx;
1171 struct scan_callback_struct scan_struct;
1172 struct ext2_super_block *sb = ctx->fs->super;
1174 int imagic_fs, extent_fs, inlinedata_fs;
1175 int low_dtime_check = 1;
1176 int inode_size = EXT2_INODE_SIZE(fs->super);
1178 int failed_csum = 0;
1179 ext2_ino_t ino_threshold = 0;
1180 dgrp_t ra_group = 0;
1181 struct ea_quota ea_ibody_quota;
1183 init_resource_track(&rtrack, ctx->fs->io);
1184 clear_problem_context(&pctx);
1186 /* If we can do readahead, figure out how many groups to pull in. */
1187 if (!e2fsck_can_readahead(ctx->fs))
1188 ctx->readahead_kb = 0;
1189 else if (ctx->readahead_kb == ~0ULL)
1190 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1191 pass1_readahead(ctx, &ra_group, &ino_threshold);
1193 if (!(ctx->options & E2F_OPT_PREEN))
1194 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1196 if (ext2fs_has_feature_dir_index(fs->super) &&
1197 !(ctx->options & E2F_OPT_NO)) {
1198 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1199 ctx->dirs_to_hash = 0;
1203 mtrace_print("Pass 1");
1206 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1208 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1209 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1210 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1211 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1212 max_sizes = (max_sizes * (1UL << i));
1213 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1217 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1218 extent_fs = ext2fs_has_feature_extents(sb);
1219 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1222 * Allocate bitmaps structures
1224 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1225 EXT2FS_BMAP64_RBTREE,
1227 &ctx->inode_used_map);
1230 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1231 ctx->flags |= E2F_FLAG_ABORT;
1234 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1235 _("directory inode map"),
1236 EXT2FS_BMAP64_AUTODIR,
1237 "inode_dir_map", &ctx->inode_dir_map);
1240 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1241 ctx->flags |= E2F_FLAG_ABORT;
1244 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1245 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1246 "inode_reg_map", &ctx->inode_reg_map);
1249 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1250 ctx->flags |= E2F_FLAG_ABORT;
1253 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1254 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1255 "block_found_map", &ctx->block_found_map);
1258 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1259 ctx->flags |= E2F_FLAG_ABORT;
1262 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1263 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1264 "block_metadata_map", &ctx->block_metadata_map);
1267 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1268 ctx->flags |= E2F_FLAG_ABORT;
1271 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1272 &ctx->inode_link_info);
1274 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1275 ctx->flags |= E2F_FLAG_ABORT;
1278 bufsize = inode_size;
1279 if (bufsize < sizeof(struct ext2_inode_large))
1280 bufsize = sizeof(struct ext2_inode_large);
1281 inode = (struct ext2_inode *)
1282 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1284 inodes_to_process = (struct process_inode_block *)
1285 e2fsck_allocate_memory(ctx,
1286 (ctx->process_inode_size *
1287 sizeof(struct process_inode_block)),
1288 "array of inodes to process");
1289 process_inode_count = 0;
1291 pctx.errcode = ext2fs_init_dblist(fs, 0);
1293 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1294 ctx->flags |= E2F_FLAG_ABORT;
1299 * If the last orphan field is set, clear it, since the pass1
1300 * processing will automatically find and clear the orphans.
1301 * In the future, we may want to try using the last_orphan
1302 * linked list ourselves, but for now, we clear it so that the
1303 * ext3 mount code won't get confused.
1305 if (!(ctx->options & E2F_OPT_READONLY)) {
1306 if (fs->super->s_last_orphan) {
1307 fs->super->s_last_orphan = 0;
1308 ext2fs_mark_super_dirty(fs);
1312 mark_table_blocks(ctx);
1313 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1314 &ctx->block_found_map);
1316 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1317 ctx->flags |= E2F_FLAG_ABORT;
1320 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1321 "block interate buffer");
1322 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1323 e2fsck_use_inode_shortcuts(ctx, 1);
1324 e2fsck_intercept_block_allocations(ctx);
1325 old_op = ehandler_operation(_("opening inode scan"));
1326 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1328 ehandler_operation(old_op);
1330 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1331 ctx->flags |= E2F_FLAG_ABORT;
1334 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1335 EXT2_SF_WARN_GARBAGE_INODES, 0);
1336 ctx->stashed_inode = inode;
1337 scan_struct.ctx = ctx;
1338 scan_struct.block_buf = block_buf;
1339 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1340 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1341 ctx->fs->group_desc_count)))
1343 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1344 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1345 (fs->super->s_mkfs_time &&
1346 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1347 low_dtime_check = 0;
1349 if (ext2fs_has_feature_mmp(fs->super) &&
1350 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1351 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1352 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1353 fs->super->s_mmp_block);
1355 /* Set up ctx->lost_and_found if possible */
1356 (void) e2fsck_get_lost_and_found(ctx, 0);
1359 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1360 if (e2fsck_mmp_update(fs))
1361 fatal_error(ctx, 0);
1363 old_op = ehandler_operation(_("getting next inode from scan"));
1364 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1366 if (ino > ino_threshold)
1367 pass1_readahead(ctx, &ra_group, &ino_threshold);
1368 ehandler_operation(old_op);
1369 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1371 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1373 * If badblocks says badblocks is bad, offer to clear
1374 * the list, update the in-core bb list, and restart
1377 if (ino == EXT2_BAD_INO &&
1378 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1382 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1383 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1384 ctx->fs->badblocks = NULL;
1385 err = ext2fs_read_bb_inode(ctx->fs,
1386 &ctx->fs->badblocks);
1388 fix_problem(ctx, PR_1_ISCAN_ERROR,
1390 ctx->flags |= E2F_FLAG_ABORT;
1393 err = ext2fs_inode_scan_goto_blockgroup(scan,
1396 fix_problem(ctx, PR_1_ISCAN_ERROR,
1398 ctx->flags |= E2F_FLAG_ABORT;
1403 if (!ctx->inode_bb_map)
1405 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1406 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1410 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1411 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1412 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1413 ctx->flags |= E2F_FLAG_ABORT;
1420 ctx->stashed_ino = ino;
1422 /* Clear trashed inode? */
1423 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1424 inode->i_links_count > 0 &&
1425 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1427 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1429 failed_csum = pctx.errcode != 0;
1432 * Check for inodes who might have been part of the
1433 * orphaned list linked list. They should have gotten
1434 * dealt with by now, unless the list had somehow been
1437 * FIXME: In the future, inodes which are still in use
1438 * (and which are therefore) pending truncation should
1439 * be handled specially. Right now we just clear the
1440 * dtime field, and the normal e2fsck handling of
1441 * inodes where i_size and the inode blocks are
1442 * inconsistent is to fix i_size, instead of releasing
1443 * the extra blocks. This won't catch the inodes that
1444 * was at the end of the orphan list, but it's better
1445 * than nothing. The right answer is that there
1446 * shouldn't be any bugs in the orphan list handling. :-)
1448 if (inode->i_dtime && low_dtime_check &&
1449 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1450 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1451 inode->i_dtime = inode->i_links_count ?
1453 e2fsck_write_inode(ctx, ino, inode,
1459 if (inode->i_links_count) {
1460 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1461 ino, inode->i_links_count);
1463 pctx.num = inode->i_links_count;
1464 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1465 ctx->flags |= E2F_FLAG_ABORT;
1468 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1469 !quota_inum_is_reserved(fs, ino)) {
1470 if (!inode->i_dtime && inode->i_mode) {
1471 if (fix_problem(ctx,
1472 PR_1_ZERO_DTIME, &pctx)) {
1473 inode->i_dtime = ctx->now;
1474 e2fsck_write_inode(ctx, ino, inode,
1479 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1483 /* Conflicting inlinedata/extents inode flags? */
1484 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1485 (inode->i_flags & EXT4_EXTENTS_FL)) {
1486 int res = fix_inline_data_extents_file(ctx, ino, inode,
1490 /* skip FINISH_INODE_LOOP */
1495 /* Test for incorrect inline_data flags settings. */
1496 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1497 (ino >= EXT2_FIRST_INODE(fs->super))) {
1500 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1501 if (!pctx.errcode && size &&
1502 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1503 ext2fs_set_feature_inline_data(sb);
1504 ext2fs_mark_super_dirty(fs);
1506 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1507 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1508 /* skip FINISH_INODE_LOOP */
1513 /* Test for inline data flag but no attr */
1514 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1515 (ino >= EXT2_FIRST_INODE(fs->super))) {
1522 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1523 err = get_inline_data_ea_size(fs, ino, &size);
1524 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1525 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1529 /* Everything is awesome... */
1531 case EXT2_ET_BAD_EA_BLOCK_NUM:
1532 case EXT2_ET_BAD_EA_HASH:
1533 case EXT2_ET_BAD_EA_HEADER:
1534 case EXT2_ET_EA_BAD_NAME_LEN:
1535 case EXT2_ET_EA_BAD_VALUE_SIZE:
1536 case EXT2_ET_EA_KEY_NOT_FOUND:
1537 case EXT2_ET_EA_NO_SPACE:
1538 case EXT2_ET_MISSING_EA_FEATURE:
1539 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1540 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1541 case EXT2_ET_INLINE_DATA_NO_SPACE:
1542 case EXT2_ET_NO_INLINE_DATA:
1543 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1544 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1545 case EXT2_ET_EA_INODE_CORRUPTED:
1546 /* broken EA or no system.data EA; truncate */
1547 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1549 err = ext2fs_inode_size_set(fs, inode, 0);
1552 ctx->flags |= E2F_FLAG_ABORT;
1555 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1556 memset(&inode->i_block, 0,
1557 sizeof(inode->i_block));
1558 e2fsck_write_inode(ctx, ino, inode,
1564 /* Some other kind of non-xattr error? */
1566 ctx->flags |= E2F_FLAG_ABORT;
1572 * Test for incorrect extent flag settings.
1574 * On big-endian machines we must be careful:
1575 * When the inode is read, the i_block array is not swapped
1576 * if the extent flag is set. Therefore if we are testing
1577 * for or fixing a wrongly-set flag, we must potentially
1578 * (un)swap before testing, or after fixing.
1582 * In this case the extents flag was set when read, so
1583 * extent_header_verify is ok. If the inode is cleared,
1584 * no need to swap... so no extra swapping here.
1586 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1587 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1588 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1589 if ((ext2fs_extent_header_verify(inode->i_block,
1590 sizeof(inode->i_block)) == 0) &&
1591 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1592 ext2fs_set_feature_extents(sb);
1593 ext2fs_mark_super_dirty(fs);
1595 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1597 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1598 if (ino == EXT2_BAD_INO)
1599 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1601 /* skip FINISH_INODE_LOOP */
1607 * For big-endian machines:
1608 * If the inode didn't have the extents flag set when it
1609 * was read, then the i_blocks array was swapped. To test
1610 * as an extents header, we must swap it back first.
1611 * IF we then set the extents flag, the entire i_block
1612 * array must be un/re-swapped to make it proper extents data.
1614 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1615 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1616 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1617 (LINUX_S_ISREG(inode->i_mode) ||
1618 LINUX_S_ISDIR(inode->i_mode))) {
1620 #ifdef WORDS_BIGENDIAN
1621 __u32 tmp_block[EXT2_N_BLOCKS];
1623 for (i = 0; i < EXT2_N_BLOCKS; i++)
1624 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1627 ehp = inode->i_block;
1629 if ((ext2fs_extent_header_verify(ehp,
1630 sizeof(inode->i_block)) == 0) &&
1631 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1632 inode->i_flags |= EXT4_EXTENTS_FL;
1633 #ifdef WORDS_BIGENDIAN
1634 memcpy(inode->i_block, tmp_block,
1635 sizeof(inode->i_block));
1637 e2fsck_write_inode(ctx, ino, inode, "pass1");
1642 if (ino == EXT2_BAD_INO) {
1643 struct process_block_struct pb;
1645 if ((failed_csum || inode->i_mode || inode->i_uid ||
1646 inode->i_gid || inode->i_links_count ||
1647 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1648 inode->i_file_acl) &&
1649 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1650 memset(inode, 0, sizeof(struct ext2_inode));
1651 e2fsck_write_inode(ctx, ino, inode,
1656 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1657 &pb.fs_meta_blocks);
1660 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1661 ctx->flags |= E2F_FLAG_ABORT;
1664 pb.ino = EXT2_BAD_INO;
1665 pb.num_blocks = pb.last_block = 0;
1666 pb.last_db_block = -1;
1667 pb.num_illegal_blocks = 0;
1668 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1669 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1673 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1674 block_buf, process_bad_block, &pb);
1675 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1677 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1678 ctx->flags |= E2F_FLAG_ABORT;
1682 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1683 ctx->flags |= E2F_FLAG_ABORT;
1686 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1687 clear_problem_context(&pctx);
1688 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1690 } else if (ino == EXT2_ROOT_INO) {
1692 * Make sure the root inode is a directory; if
1693 * not, offer to clear it. It will be
1694 * regenerated in pass #3.
1696 if (!LINUX_S_ISDIR(inode->i_mode)) {
1697 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1701 * If dtime is set, offer to clear it. mke2fs
1702 * version 0.2b created filesystems with the
1703 * dtime field set for the root and lost+found
1704 * directories. We won't worry about
1705 * /lost+found, since that can be regenerated
1706 * easily. But we will fix the root directory
1707 * as a special case.
1709 if (inode->i_dtime && inode->i_links_count) {
1710 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1712 e2fsck_write_inode(ctx, ino, inode,
1717 } else if (ino == EXT2_JOURNAL_INO) {
1718 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1719 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1720 if (!LINUX_S_ISREG(inode->i_mode) &&
1721 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1723 inode->i_mode = LINUX_S_IFREG;
1724 e2fsck_write_inode(ctx, ino, inode,
1728 check_blocks(ctx, &pctx, block_buf, NULL);
1729 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1732 if ((inode->i_links_count ||
1733 inode->i_blocks || inode->i_block[0]) &&
1734 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1736 memset(inode, 0, inode_size);
1737 ext2fs_icount_store(ctx->inode_link_info,
1739 e2fsck_write_inode_full(ctx, ino, inode,
1740 inode_size, "pass1");
1743 } else if (quota_inum_is_reserved(fs, ino)) {
1744 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1745 if (ext2fs_has_feature_quota(fs->super) &&
1746 quota_inum_is_super(fs->super, ino)) {
1747 if (!LINUX_S_ISREG(inode->i_mode) &&
1748 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1750 inode->i_mode = LINUX_S_IFREG;
1751 e2fsck_write_inode(ctx, ino, inode,
1755 check_blocks(ctx, &pctx, block_buf, NULL);
1756 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1759 if ((inode->i_links_count ||
1760 inode->i_blocks || inode->i_block[0]) &&
1761 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1763 memset(inode, 0, inode_size);
1764 ext2fs_icount_store(ctx->inode_link_info,
1766 e2fsck_write_inode_full(ctx, ino, inode,
1767 inode_size, "pass1");
1770 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1771 problem_t problem = 0;
1773 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1774 if (ino == EXT2_BOOT_LOADER_INO) {
1775 if (LINUX_S_ISDIR(inode->i_mode))
1776 problem = PR_1_RESERVED_BAD_MODE;
1777 } else if (ino == EXT2_RESIZE_INO) {
1778 if (inode->i_mode &&
1779 !LINUX_S_ISREG(inode->i_mode))
1780 problem = PR_1_RESERVED_BAD_MODE;
1782 if (inode->i_mode != 0)
1783 problem = PR_1_RESERVED_BAD_MODE;
1786 if (fix_problem(ctx, problem, &pctx)) {
1788 e2fsck_write_inode(ctx, ino, inode,
1793 check_blocks(ctx, &pctx, block_buf, NULL);
1794 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1798 if (!inode->i_links_count) {
1799 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1803 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1804 * deleted files. Oops.
1806 * Since all new ext2 implementations get this right,
1807 * we now assume that the case of non-zero
1808 * i_links_count and non-zero dtime means that we
1809 * should keep the file, not delete it.
1812 if (inode->i_dtime) {
1813 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1815 e2fsck_write_inode(ctx, ino, inode, "pass1");
1820 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1821 switch (fs->super->s_creator_os) {
1823 frag = inode->osd2.hurd2.h_i_frag;
1824 fsize = inode->osd2.hurd2.h_i_fsize;
1830 if (inode->i_faddr || frag || fsize ||
1831 (!ext2fs_has_feature_largedir(fs->super) &&
1832 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1833 mark_inode_bad(ctx, ino);
1834 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1835 !ext2fs_has_feature_64bit(fs->super) &&
1836 inode->osd2.linux2.l_i_file_acl_high != 0)
1837 mark_inode_bad(ctx, ino);
1838 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1839 !ext2fs_has_feature_huge_file(fs->super) &&
1840 (inode->osd2.linux2.l_i_blocks_hi != 0))
1841 mark_inode_bad(ctx, ino);
1842 if (inode->i_flags & EXT2_IMAGIC_FL) {
1844 if (!ctx->inode_imagic_map)
1845 alloc_imagic_map(ctx);
1846 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1849 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1850 inode->i_flags &= ~EXT2_IMAGIC_FL;
1851 e2fsck_write_inode(ctx, ino,
1858 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1859 check_is_really_dir(ctx, &pctx, block_buf);
1862 * ext2fs_inode_has_valid_blocks2 does not actually look
1863 * at i_block[] values, so not endian-sensitive here.
1865 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1866 LINUX_S_ISLNK(inode->i_mode) &&
1867 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1868 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1869 inode->i_flags &= ~EXT4_EXTENTS_FL;
1870 e2fsck_write_inode(ctx, ino, inode, "pass1");
1874 if (LINUX_S_ISDIR(inode->i_mode)) {
1875 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1876 e2fsck_add_dir_info(ctx, ino, 0);
1877 ctx->fs_directory_count++;
1878 if (inode->i_flags & EXT4_ENCRYPT_FL)
1879 add_encrypted_dir(ctx, ino);
1880 } else if (LINUX_S_ISREG (inode->i_mode)) {
1881 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1882 ctx->fs_regular_count++;
1883 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1884 e2fsck_pass1_check_device_inode(fs, inode)) {
1885 check_extents_inlinedata(ctx, &pctx);
1886 check_immutable(ctx, &pctx);
1887 check_size(ctx, &pctx);
1888 ctx->fs_chardev_count++;
1889 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1890 e2fsck_pass1_check_device_inode(fs, inode)) {
1891 check_extents_inlinedata(ctx, &pctx);
1892 check_immutable(ctx, &pctx);
1893 check_size(ctx, &pctx);
1894 ctx->fs_blockdev_count++;
1895 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1896 e2fsck_pass1_check_symlink(fs, ino, inode,
1898 check_immutable(ctx, &pctx);
1899 ctx->fs_symlinks_count++;
1900 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1901 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1903 } else if (ext2fs_is_fast_symlink(inode)) {
1904 ctx->fs_fast_symlinks_count++;
1905 check_blocks(ctx, &pctx, block_buf,
1907 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1911 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1912 e2fsck_pass1_check_device_inode(fs, inode)) {
1913 check_extents_inlinedata(ctx, &pctx);
1914 check_immutable(ctx, &pctx);
1915 check_size(ctx, &pctx);
1916 ctx->fs_fifo_count++;
1917 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1918 e2fsck_pass1_check_device_inode(fs, inode)) {
1919 check_extents_inlinedata(ctx, &pctx);
1920 check_immutable(ctx, &pctx);
1921 check_size(ctx, &pctx);
1922 ctx->fs_sockets_count++;
1924 mark_inode_bad(ctx, ino);
1925 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1926 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1927 if (inode->i_block[EXT2_IND_BLOCK])
1928 ctx->fs_ind_count++;
1929 if (inode->i_block[EXT2_DIND_BLOCK])
1930 ctx->fs_dind_count++;
1931 if (inode->i_block[EXT2_TIND_BLOCK])
1932 ctx->fs_tind_count++;
1934 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1935 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1936 (inode->i_block[EXT2_IND_BLOCK] ||
1937 inode->i_block[EXT2_DIND_BLOCK] ||
1938 inode->i_block[EXT2_TIND_BLOCK] ||
1939 ext2fs_file_acl_block(fs, inode))) {
1940 struct process_inode_block *itp;
1942 itp = &inodes_to_process[process_inode_count];
1944 itp->ea_ibody_quota = ea_ibody_quota;
1945 if (inode_size < sizeof(struct ext2_inode_large))
1946 memcpy(&itp->inode, inode, inode_size);
1948 memcpy(&itp->inode, inode, sizeof(itp->inode));
1949 process_inode_count++;
1951 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
1953 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1955 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1958 if (process_inode_count >= ctx->process_inode_size) {
1959 process_inodes(ctx, block_buf);
1961 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1965 process_inodes(ctx, block_buf);
1966 ext2fs_close_inode_scan(scan);
1969 reserve_block_for_root_repair(ctx);
1970 reserve_block_for_lnf_repair(ctx);
1973 * If any extended attribute blocks' reference counts need to
1974 * be adjusted, either up (ctx->refcount_extra), or down
1975 * (ctx->refcount), then fix them.
1977 if (ctx->refcount) {
1978 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1979 ea_refcount_free(ctx->refcount);
1982 if (ctx->refcount_extra) {
1983 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1985 ea_refcount_free(ctx->refcount_extra);
1986 ctx->refcount_extra = 0;
1989 if (ctx->ea_block_quota_blocks) {
1990 ea_refcount_free(ctx->ea_block_quota_blocks);
1991 ctx->ea_block_quota_blocks = 0;
1994 if (ctx->ea_block_quota_inodes) {
1995 ea_refcount_free(ctx->ea_block_quota_inodes);
1996 ctx->ea_block_quota_inodes = 0;
1999 if (ctx->invalid_bitmaps)
2000 handle_fs_bad_blocks(ctx);
2002 /* We don't need the block_ea_map any more */
2003 if (ctx->block_ea_map) {
2004 ext2fs_free_block_bitmap(ctx->block_ea_map);
2005 ctx->block_ea_map = 0;
2008 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2009 clear_problem_context(&pctx);
2010 pctx.errcode = ext2fs_create_resize_inode(fs);
2012 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2014 ctx->flags |= E2F_FLAG_ABORT;
2019 if (!pctx.errcode) {
2020 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2022 inode->i_mtime = ctx->now;
2023 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2026 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2029 if (ctx->flags & E2F_FLAG_RESTART) {
2031 * Only the master copy of the superblock and block
2032 * group descriptors are going to be written during a
2033 * restart, so set the superblock to be used to be the
2034 * master superblock.
2036 ctx->use_superblock = 0;
2041 if (ctx->block_dup_map) {
2042 if (ctx->options & E2F_OPT_PREEN) {
2043 clear_problem_context(&pctx);
2044 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2046 e2fsck_pass1_dupblocks(ctx, block_buf);
2048 ctx->flags |= E2F_FLAG_ALLOC_OK;
2049 ext2fs_free_mem(&inodes_to_process);
2051 e2fsck_use_inode_shortcuts(ctx, 0);
2054 ext2fs_close_inode_scan(scan);
2056 ext2fs_free_mem(&block_buf);
2058 ext2fs_free_mem(&inode);
2061 * The l+f inode may have been cleared, so zap it now and
2062 * later passes will recalculate it if necessary
2064 ctx->lost_and_found = 0;
2066 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2067 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2069 ctx->invalid_bitmaps++;
2071 #undef FINISH_INODE_LOOP
2074 * When the inode_scan routines call this callback at the end of the
2075 * glock group, call process_inodes.
2077 static errcode_t scan_callback(ext2_filsys fs,
2078 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2079 dgrp_t group, void * priv_data)
2081 struct scan_callback_struct *scan_struct;
2084 scan_struct = (struct scan_callback_struct *) priv_data;
2085 ctx = scan_struct->ctx;
2087 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
2090 if ((ctx->progress)(ctx, 1, group+1,
2091 ctx->fs->group_desc_count))
2092 return EXT2_ET_CANCEL_REQUESTED;
2098 * Process the inodes in the "inodes to process" list.
2100 static void process_inodes(e2fsck_t ctx, char *block_buf)
2103 struct ext2_inode *old_stashed_inode;
2104 ext2_ino_t old_stashed_ino;
2105 const char *old_operation;
2107 struct problem_context pctx;
2110 printf("begin process_inodes: ");
2112 if (process_inode_count == 0)
2114 old_operation = ehandler_operation(0);
2115 old_stashed_inode = ctx->stashed_inode;
2116 old_stashed_ino = ctx->stashed_ino;
2117 qsort(inodes_to_process, process_inode_count,
2118 sizeof(struct process_inode_block), process_inode_cmp);
2119 clear_problem_context(&pctx);
2120 for (i=0; i < process_inode_count; i++) {
2121 pctx.inode = ctx->stashed_inode =
2122 (struct ext2_inode *) &inodes_to_process[i].inode;
2123 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2126 printf("%u ", pctx.ino);
2128 sprintf(buf, _("reading indirect blocks of inode %u"),
2130 ehandler_operation(buf);
2131 check_blocks(ctx, &pctx, block_buf,
2132 &inodes_to_process[i].ea_ibody_quota);
2133 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2136 ctx->stashed_inode = old_stashed_inode;
2137 ctx->stashed_ino = old_stashed_ino;
2138 process_inode_count = 0;
2140 printf("end process inodes\n");
2142 ehandler_operation(old_operation);
2145 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2147 const struct process_inode_block *ib_a =
2148 (const struct process_inode_block *) a;
2149 const struct process_inode_block *ib_b =
2150 (const struct process_inode_block *) b;
2153 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2154 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2157 * We only call process_inodes() for non-extent
2158 * inodes, so it's OK to pass NULL to
2159 * ext2fs_file_acl_block() here.
2161 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2162 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2164 ret = ib_a->ino - ib_b->ino;
2169 * Mark an inode as being bad in some what
2171 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2173 struct problem_context pctx;
2175 if (!ctx->inode_bad_map) {
2176 clear_problem_context(&pctx);
2178 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2179 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2180 "inode_bad_map", &ctx->inode_bad_map);
2183 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2184 /* Should never get here */
2185 ctx->flags |= E2F_FLAG_ABORT;
2189 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2192 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2194 struct problem_context pctx;
2196 if (!ctx->encrypted_dirs) {
2197 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2201 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2202 if (pctx.errcode == 0)
2205 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2206 /* Should never get here */
2207 ctx->flags |= E2F_FLAG_ABORT;
2211 * This procedure will allocate the inode "bb" (badblock) map table
2213 static void alloc_bb_map(e2fsck_t ctx)
2215 struct problem_context pctx;
2217 clear_problem_context(&pctx);
2218 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2219 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2220 "inode_bb_map", &ctx->inode_bb_map);
2223 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2224 /* Should never get here */
2225 ctx->flags |= E2F_FLAG_ABORT;
2231 * This procedure will allocate the inode imagic table
2233 static void alloc_imagic_map(e2fsck_t ctx)
2235 struct problem_context pctx;
2237 clear_problem_context(&pctx);
2238 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2239 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2240 "inode_imagic_map", &ctx->inode_imagic_map);
2243 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2244 /* Should never get here */
2245 ctx->flags |= E2F_FLAG_ABORT;
2251 * Marks a block as in use, setting the dup_map if it's been set
2252 * already. Called by process_block and process_bad_block.
2254 * WARNING: Assumes checks have already been done to make sure block
2255 * is valid. This is true in both process_block and process_bad_block.
2257 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2259 struct problem_context pctx;
2261 clear_problem_context(&pctx);
2263 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2264 if (!ctx->block_dup_map) {
2265 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2266 _("multiply claimed block map"),
2267 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2268 &ctx->block_dup_map);
2271 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2273 /* Should never get here */
2274 ctx->flags |= E2F_FLAG_ABORT;
2278 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2280 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2285 * When cluster size is greater than one block, it is caller's responsibility
2286 * to make sure block parameter starts at a cluster boundary.
2288 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2291 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2292 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2295 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
2296 mark_block_used(ctx, block + i);
2301 * Adjust the extended attribute block's reference counts at the end
2302 * of pass 1, either by subtracting out references for EA blocks that
2303 * are still referenced in ctx->refcount, or by adding references for
2304 * EA blocks that had extra references as accounted for in
2305 * ctx->refcount_extra.
2307 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2308 char *block_buf, int adjust_sign)
2310 struct ext2_ext_attr_header *header;
2311 struct problem_context pctx;
2312 ext2_filsys fs = ctx->fs;
2317 clear_problem_context(&pctx);
2319 ea_refcount_intr_begin(refcount);
2321 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2324 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2327 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2330 header = (struct ext2_ext_attr_header *) block_buf;
2331 pctx.blkcount = header->h_refcount;
2332 should_be = header->h_refcount + adjust_sign * (int)count;
2333 pctx.num = should_be;
2334 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2335 header->h_refcount = should_be;
2336 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2340 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2349 * Handle processing the extended attribute blocks
2351 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2352 char *block_buf, struct ea_quota *ea_block_quota)
2354 ext2_filsys fs = ctx->fs;
2355 ext2_ino_t ino = pctx->ino;
2356 struct ext2_inode *inode = pctx->inode;
2359 struct ext2_ext_attr_header *header;
2360 struct ext2_ext_attr_entry *first, *entry;
2361 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
2362 __u64 quota_inodes = 0;
2363 region_t region = 0;
2364 int failed_csum = 0;
2366 ea_block_quota->blocks = 0;
2367 ea_block_quota->inodes = 0;
2369 blk = ext2fs_file_acl_block(fs, inode);
2374 * If the Extended attribute flag isn't set, then a non-zero
2375 * file acl means that the inode is corrupted.
2377 * Or if the extended attribute block is an invalid block,
2378 * then the inode is also corrupted.
2380 if (!ext2fs_has_feature_xattr(fs->super) ||
2381 (blk < fs->super->s_first_data_block) ||
2382 (blk >= ext2fs_blocks_count(fs->super))) {
2383 mark_inode_bad(ctx, ino);
2387 /* If ea bitmap hasn't been allocated, create it */
2388 if (!ctx->block_ea_map) {
2389 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2390 _("ext attr block map"),
2391 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2392 &ctx->block_ea_map);
2393 if (pctx->errcode) {
2395 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2396 ctx->flags |= E2F_FLAG_ABORT;
2401 /* Create the EA refcount structure if necessary */
2402 if (!ctx->refcount) {
2403 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2404 if (pctx->errcode) {
2406 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2407 ctx->flags |= E2F_FLAG_ABORT;
2413 /* Debugging text */
2414 printf("Inode %u has EA block %u\n", ino, blk);
2417 /* Have we seen this EA block before? */
2418 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2419 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
2420 ea_block_quota->inodes = 0;
2422 if (ctx->ea_block_quota_blocks) {
2423 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
2426 ea_block_quota->blocks = quota_blocks;
2429 if (ctx->ea_block_quota_inodes)
2430 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
2431 &ea_block_quota->inodes);
2433 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2435 /* Ooops, this EA was referenced more than it stated */
2436 if (!ctx->refcount_extra) {
2437 pctx->errcode = ea_refcount_create(0,
2438 &ctx->refcount_extra);
2439 if (pctx->errcode) {
2441 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2442 ctx->flags |= E2F_FLAG_ABORT;
2446 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2451 * OK, we haven't seen this EA block yet. So we need to
2455 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2456 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2459 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2462 if (pctx->errcode &&
2463 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2467 header = (struct ext2_ext_attr_header *) block_buf;
2468 pctx->blk = ext2fs_file_acl_block(fs, inode);
2469 if (((ctx->ext_attr_ver == 1) &&
2470 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2471 ((ctx->ext_attr_ver == 2) &&
2472 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2473 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2477 if (header->h_blocks != 1) {
2478 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2482 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2485 region = region_create(0, fs->blocksize);
2487 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2488 ctx->flags |= E2F_FLAG_ABORT;
2491 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2492 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2496 first = (struct ext2_ext_attr_entry *)(header+1);
2497 end = block_buf + fs->blocksize;
2499 while ((char *)entry < end && *(__u32 *)entry) {
2502 if (region_allocate(region, (char *)entry - (char *)header,
2503 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2504 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2508 if ((ctx->ext_attr_ver == 1 &&
2509 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2510 (ctx->ext_attr_ver == 2 &&
2511 entry->e_name_index == 0)) {
2512 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2516 if (entry->e_value_inum == 0) {
2517 if (entry->e_value_offs + entry->e_value_size >
2519 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2523 if (entry->e_value_size &&
2524 region_allocate(region, entry->e_value_offs,
2525 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2526 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
2531 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2532 entry->e_value_offs);
2534 if (entry->e_hash != hash) {
2535 pctx->num = entry->e_hash;
2536 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2538 entry->e_hash = hash;
2542 blk64_t entry_quota_blocks;
2544 problem = check_large_ea_inode(ctx, entry, pctx,
2545 &entry_quota_blocks);
2546 if (problem && fix_problem(ctx, problem, pctx))
2549 quota_blocks += entry_quota_blocks;
2553 entry = EXT2_EXT_ATTR_NEXT(entry);
2555 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2556 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2559 region_free(region);
2562 * We only get here if there was no other errors that were fixed.
2563 * If there was a checksum fail, ask to correct it.
2566 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2567 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2573 if (quota_blocks != EXT2FS_C2B(fs, 1)) {
2574 if (!ctx->ea_block_quota_blocks) {
2575 pctx->errcode = ea_refcount_create(0,
2576 &ctx->ea_block_quota_blocks);
2577 if (pctx->errcode) {
2582 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
2587 if (!ctx->ea_block_quota_inodes) {
2588 pctx->errcode = ea_refcount_create(0,
2589 &ctx->ea_block_quota_inodes);
2590 if (pctx->errcode) {
2593 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2594 ctx->flags |= E2F_FLAG_ABORT;
2599 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
2602 ea_block_quota->blocks = quota_blocks;
2603 ea_block_quota->inodes = quota_inodes;
2605 inc_ea_inode_refs(ctx, pctx, first, end);
2606 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
2607 mark_block_used(ctx, blk);
2608 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2613 region_free(region);
2614 ext2fs_file_acl_block_set(fs, inode, 0);
2615 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2619 /* Returns 1 if bad htree, 0 if OK */
2620 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2621 ext2_ino_t ino, struct ext2_inode *inode,
2624 struct ext2_dx_root_info *root;
2625 ext2_filsys fs = ctx->fs;
2629 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2630 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2631 (!ext2fs_has_feature_dir_index(fs->super) &&
2632 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2635 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2637 if ((pctx->errcode) ||
2639 (blk < fs->super->s_first_data_block) ||
2640 (blk >= ext2fs_blocks_count(fs->super))) {
2641 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2647 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2648 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2651 /* XXX should check that beginning matches a directory */
2652 root = (struct ext2_dx_root_info *) (block_buf + 24);
2654 if ((root->reserved_zero || root->info_length < 8) &&
2655 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2658 pctx->num = root->hash_version;
2659 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2660 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2661 (root->hash_version != EXT2_HASH_TEA) &&
2662 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2665 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2666 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2669 pctx->num = root->indirect_levels;
2670 if ((root->indirect_levels > ext2_dir_htree_level(fs)) &&
2671 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2677 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2678 struct ext2_inode *inode, int restart_flag,
2682 inode->i_links_count = 0;
2683 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2684 inode->i_dtime = ctx->now;
2687 * If a special inode has such rotten block mappings that we
2688 * want to clear the whole inode, be sure to actually zap
2689 * the block maps because i_links_count isn't checked for
2690 * special inodes, and we'll end up right back here the next
2693 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2694 memset(inode->i_block, 0, sizeof(inode->i_block));
2696 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2697 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2698 if (ctx->inode_reg_map)
2699 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2700 if (ctx->inode_bad_map)
2701 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2704 * If the inode was partially accounted for before processing
2705 * was aborted, we need to restart the pass 1 scan.
2707 ctx->flags |= restart_flag;
2709 if (ino == EXT2_BAD_INO)
2710 memset(inode, 0, sizeof(struct ext2_inode));
2712 e2fsck_write_inode(ctx, ino, inode, source);
2716 * Use the multiple-blocks reclamation code to fix alignment problems in
2717 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2718 * physical cluster, and we want the block offsets within that cluster to
2721 static int has_unaligned_cluster_map(e2fsck_t ctx,
2722 blk64_t last_pblk, blk64_t last_lblk,
2723 blk64_t pblk, blk64_t lblk)
2725 blk64_t cluster_mask;
2727 if (!ctx->fs->cluster_ratio_bits)
2729 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2732 * If the block in the logical cluster doesn't align with the block in
2733 * the physical cluster...
2735 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2739 * If we cross a physical cluster boundary within a logical cluster...
2741 if (last_pblk && (lblk & cluster_mask) != 0 &&
2742 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2743 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2749 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2750 struct process_block_struct *pb,
2751 blk64_t start_block, blk64_t end_block,
2753 ext2_extent_handle_t ehandle,
2756 struct ext2fs_extent extent;
2757 blk64_t blk, last_lblk;
2759 int is_dir, is_leaf;
2761 struct ext2_extent_info info;
2762 int failed_csum = 0;
2764 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2767 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2770 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2771 !pb->eti.force_rebuild) {
2772 struct extent_tree_level *etl;
2774 etl = pb->eti.ext_info + info.curr_level;
2775 etl->num_extents += info.num_entries;
2776 etl->max_extents += info.max_entries;
2778 * Implementation wart: Splitting extent blocks when appending
2779 * will leave the old block with one free entry. Therefore
2780 * unless the node is totally full, pretend that a non-root
2781 * extent block can hold one fewer entry than it actually does,
2782 * so that we don't repeatedly rebuild the extent tree.
2784 if (info.curr_level && info.num_entries < info.max_entries)
2788 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2790 while ((pctx->errcode == 0 ||
2791 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2792 info.num_entries-- > 0) {
2793 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2794 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2795 last_lblk = extent.e_lblk + extent.e_len - 1;
2798 pctx->blk = extent.e_pblk;
2799 pctx->blk2 = extent.e_lblk;
2800 pctx->num = extent.e_len;
2801 pctx->blkcount = extent.e_lblk + extent.e_len;
2803 if (extent.e_pblk == 0 ||
2804 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2805 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2806 problem = PR_1_EXTENT_BAD_START_BLK;
2807 else if (extent.e_lblk < start_block)
2808 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2809 else if ((end_block && last_lblk > end_block) &&
2810 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2811 last_lblk > eof_block)))
2812 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2813 else if (is_leaf && extent.e_len == 0)
2814 problem = PR_1_EXTENT_LENGTH_ZERO;
2816 (extent.e_pblk + extent.e_len) >
2817 ext2fs_blocks_count(ctx->fs->super))
2818 problem = PR_1_EXTENT_ENDS_BEYOND;
2819 else if (is_leaf && is_dir &&
2820 ((extent.e_lblk + extent.e_len) >
2821 (1U << (21 - ctx->fs->super->s_log_block_size))))
2822 problem = PR_1_TOOBIG_DIR;
2824 if (is_leaf && problem == 0 && extent.e_len > 0) {
2826 printf("extent_region(ino=%u, expect=%llu, "
2827 "lblk=%llu, len=%u)\n",
2828 pb->ino, pb->next_lblock,
2829 extent.e_lblk, extent.e_len);
2831 if (extent.e_lblk < pb->next_lblock)
2832 problem = PR_1_EXTENT_COLLISION;
2833 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
2834 pb->next_lblock = extent.e_lblk + extent.e_len;
2838 * Uninitialized blocks in a directory? Clear the flag and
2839 * we'll interpret the blocks later.
2841 if (try_repairs && is_dir && problem == 0 &&
2842 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2843 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2844 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2845 pb->inode_modified = 1;
2846 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2853 if (try_repairs && problem) {
2855 if (fix_problem(ctx, problem, pctx)) {
2856 if (ctx->invalid_bitmaps) {
2858 * If fsck knows the bitmaps are bad,
2859 * skip to the next extent and
2860 * try to clear this extent again
2861 * after fixing the bitmaps, by
2864 pctx->errcode = ext2fs_extent_get(
2866 EXT2_EXTENT_NEXT_SIB,
2868 ctx->flags |= E2F_FLAG_RESTART_LATER;
2869 if (pctx->errcode ==
2870 EXT2_ET_NO_CURRENT_NODE) {
2876 e2fsck_read_bitmaps(ctx);
2877 pb->inode_modified = 1;
2879 ext2fs_extent_delete(ehandle, 0);
2880 if (pctx->errcode) {
2881 pctx->str = "ext2fs_extent_delete";
2884 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2885 if (pctx->errcode &&
2886 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2887 pctx->str = "ext2fs_extent_fix_parents";
2890 pctx->errcode = ext2fs_extent_get(ehandle,
2891 EXT2_EXTENT_CURRENT,
2893 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2904 blk64_t lblk = extent.e_lblk;
2905 int next_try_repairs = 1;
2907 blk = extent.e_pblk;
2910 * If this lower extent block collides with critical
2911 * metadata, don't try to repair the damage. Pass 1b
2912 * will reallocate the block; then we can try again.
2914 if (pb->ino != EXT2_RESIZE_INO &&
2915 extent.e_pblk < ctx->fs->super->s_blocks_count &&
2916 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2918 next_try_repairs = 0;
2921 PR_1_CRITICAL_METADATA_COLLISION,
2923 if ((ctx->options & E2F_OPT_NO) == 0)
2924 ctx->flags |= E2F_FLAG_RESTART_LATER;
2926 pctx->errcode = ext2fs_extent_get(ehandle,
2927 EXT2_EXTENT_DOWN, &extent);
2928 if (pctx->errcode &&
2929 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2930 pctx->str = "EXT2_EXTENT_DOWN";
2931 problem = PR_1_EXTENT_HEADER_INVALID;
2932 if (!next_try_repairs)
2934 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2935 goto report_problem;
2938 /* The next extent should match this index's logical start */
2939 if (extent.e_lblk != lblk) {
2940 struct ext2_extent_info e_info;
2942 ext2fs_extent_get_info(ehandle, &e_info);
2944 pctx->blk2 = extent.e_lblk;
2945 pctx->num = e_info.curr_level - 1;
2946 problem = PR_1_EXTENT_INDEX_START_INVALID;
2947 if (fix_problem(ctx, problem, pctx)) {
2948 pb->inode_modified = 1;
2950 ext2fs_extent_fix_parents(ehandle);
2951 if (pctx->errcode) {
2952 pctx->str = "ext2fs_extent_fix_parents";
2957 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2958 last_lblk, eof_block, ehandle,
2962 pctx->errcode = ext2fs_extent_get(ehandle,
2963 EXT2_EXTENT_UP, &extent);
2964 if (pctx->errcode) {
2965 pctx->str = "EXT2_EXTENT_UP";
2968 mark_block_used(ctx, blk);
2973 if ((pb->previous_block != 0) &&
2974 (pb->previous_block+1 != extent.e_pblk)) {
2975 if (ctx->options & E2F_OPT_FRAGCHECK) {
2980 else if (pb->is_reg)
2983 printf(("%6lu(%c): expecting %6lu "
2985 "phys %6lu log %lu len %lu\n"),
2986 (unsigned long) pctx->ino, type,
2987 (unsigned long) pb->previous_block+1,
2988 (unsigned long) extent.e_pblk,
2989 (unsigned long) extent.e_lblk,
2990 (unsigned long) extent.e_len);
2995 * If we notice a gap in the logical block mappings of an
2996 * extent-mapped directory, offer to close the hole by
2997 * moving the logical block down, otherwise we'll go mad in
2998 * pass 3 allocating empty directory blocks to fill the hole.
3000 if (try_repairs && is_dir &&
3001 pb->last_block + 1 < extent.e_lblk) {
3004 new_lblk = pb->last_block + 1;
3005 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3006 new_lblk = ((new_lblk +
3007 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3008 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3010 EXT2FS_CLUSTER_MASK(ctx->fs));
3011 pctx->blk = extent.e_lblk;
3012 pctx->blk2 = new_lblk;
3013 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3014 extent.e_lblk = new_lblk;
3015 pb->inode_modified = 1;
3016 pctx->errcode = ext2fs_extent_replace(ehandle,
3018 if (pctx->errcode) {
3022 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3024 goto failed_add_dir_block;
3025 pctx->errcode = ext2fs_extent_goto(ehandle,
3028 goto failed_add_dir_block;
3029 last_lblk = extent.e_lblk + extent.e_len - 1;
3035 while (++pb->last_db_block <
3036 (e2_blkcnt_t) extent.e_lblk) {
3037 pctx->errcode = ext2fs_add_dir_block2(
3041 if (pctx->errcode) {
3043 pctx->num = pb->last_db_block;
3044 goto failed_add_dir_block;
3048 for (i = 0; i < extent.e_len; i++) {
3049 pctx->errcode = ext2fs_add_dir_block2(
3054 if (pctx->errcode) {
3055 pctx->blk = extent.e_pblk + i;
3056 pctx->num = extent.e_lblk + i;
3057 failed_add_dir_block:
3058 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3059 /* Should never get here */
3060 ctx->flags |= E2F_FLAG_ABORT;
3064 if (extent.e_len > 0)
3065 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3067 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3071 for (i = 0; i < extent.e_len; i++) {
3072 pctx->blk = extent.e_lblk + i;
3073 pctx->blk2 = extent.e_pblk + i;
3074 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3075 mark_block_used(ctx, extent.e_pblk + i);
3076 mark_block_used(ctx, extent.e_pblk + i);
3081 * Check whether first cluster got marked in previous iteration.
3083 if (ctx->fs->cluster_ratio_bits &&
3084 pb->previous_block &&
3085 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3086 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3087 /* Set blk to the beginning of next cluster. */
3090 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3092 /* Set blk to the beginning of current cluster. */
3093 blk = EXT2FS_C2B(ctx->fs,
3094 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3096 if (blk < extent.e_pblk + extent.e_len) {
3097 mark_blocks_used(ctx, blk,
3098 extent.e_pblk + extent.e_len - blk);
3099 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3100 EXT2FS_CLUSTER_RATIO(ctx->fs));
3101 pb->num_blocks += n;
3103 pb->last_block = extent.e_lblk + extent.e_len - 1;
3104 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3105 start_block = pb->last_block = last_lblk;
3106 if (is_leaf && !is_dir &&
3107 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3108 pb->last_init_lblock = last_lblk;
3110 pctx->errcode = ext2fs_extent_get(ehandle,
3111 EXT2_EXTENT_NEXT_SIB,
3115 /* Failed csum but passes checks? Ask to fix checksum. */
3117 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3118 pb->inode_modified = 1;
3119 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3124 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3128 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3129 struct process_block_struct *pb)
3131 struct ext2_extent_info info;
3132 struct ext2_inode *inode = pctx->inode;
3133 ext2_extent_handle_t ehandle;
3134 ext2_filsys fs = ctx->fs;
3135 ext2_ino_t ino = pctx->ino;
3138 struct ext3_extent_header *eh;
3140 /* Check for a proper extent header... */
3141 eh = (struct ext3_extent_header *) &inode->i_block[0];
3142 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3144 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3145 e2fsck_clear_inode(ctx, ino, inode, 0,
3146 "check_blocks_extents");
3151 /* ...since this function doesn't fail if i_block is zeroed. */
3152 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3153 if (pctx->errcode) {
3154 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3155 e2fsck_clear_inode(ctx, ino, inode, 0,
3156 "check_blocks_extents");
3161 retval = ext2fs_extent_get_info(ehandle, &info);
3163 int max_depth = info.max_depth;
3165 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3166 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3167 ctx->extent_depth_count[max_depth]++;
3170 /* Check maximum extent depth */
3171 pctx->blk = info.max_depth;
3172 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
3173 if (pctx->blk2 < pctx->blk &&
3174 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
3175 pb->eti.force_rebuild = 1;
3177 /* Can we collect extent tree level stats? */
3178 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
3179 if (pctx->blk2 > pctx->blk)
3180 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
3181 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
3182 pb->eti.ino = pb->ino;
3184 pb->next_lblock = 0;
3186 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
3187 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
3188 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
3189 if (pctx->errcode &&
3190 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
3192 inode->i_blocks = 0;
3193 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3194 "check_blocks_extents");
3197 ext2fs_extent_free(ehandle);
3199 /* Rebuild unless it's a dir and we're rehashing it */
3200 if (LINUX_S_ISDIR(inode->i_mode) &&
3201 e2fsck_dir_will_be_rehashed(ctx, ino))
3204 if (ctx->options & E2F_OPT_CONVERT_BMAP)
3205 e2fsck_rebuild_extents_later(ctx, ino);
3207 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3211 * In fact we don't need to check blocks for an inode with inline data
3212 * because this inode doesn't have any blocks. In this function all
3213 * we need to do is add this inode into dblist when it is a directory.
3215 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3216 struct process_block_struct *pb)
3219 size_t inline_data_size = 0;
3226 /* Process the dirents in i_block[] as the "first" block. */
3227 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3231 /* Process the dirents in the EA as a "second" block. */
3232 flags = ctx->fs->flags;
3233 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3234 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3236 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3237 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3238 if (pctx->errcode) {
3243 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3246 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3254 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3255 ctx->flags |= E2F_FLAG_ABORT;
3259 * This subroutine is called on each inode to account for all of the
3260 * blocks used by that inode.
3262 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3263 char *block_buf, const struct ea_quota *ea_ibody_quota)
3265 ext2_filsys fs = ctx->fs;
3266 struct process_block_struct pb;
3267 ext2_ino_t ino = pctx->ino;
3268 struct ext2_inode *inode = pctx->inode;
3269 unsigned bad_size = 0;
3270 int dirty_inode = 0;
3274 struct ea_quota ea_block_quota;
3277 pb.num_blocks = EXT2FS_B2C(ctx->fs,
3278 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
3280 pb.last_init_lblock = -1;
3281 pb.last_db_block = -1;
3282 pb.num_illegal_blocks = 0;
3283 pb.suppress = 0; pb.clear = 0;
3286 pb.previous_block = 0;
3287 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3288 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3289 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3293 pb.inode_modified = 0;
3294 pb.eti.force_rebuild = 0;
3298 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3299 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3301 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
3302 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3304 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
3307 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3308 check_blocks_inline_data(ctx, pctx, &pb);
3309 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3310 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3311 check_blocks_extents(ctx, pctx, &pb);
3315 * If we've modified the inode, write it out before
3316 * iterate() tries to use it.
3319 e2fsck_write_inode(ctx, ino, inode,
3324 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3325 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3326 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3327 block_buf, process_block, &pb);
3329 * We do not have uninitialized extents in non extent
3332 pb.last_init_lblock = pb.last_block;
3334 * If iterate() changed a block mapping, we have to
3335 * re-read the inode. If we decide to clear the
3336 * inode after clearing some stuff, we'll re-write the
3337 * bad mappings into the inode!
3339 if (pb.inode_modified)
3340 e2fsck_read_inode(ctx, ino, inode,
3342 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3343 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3345 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3347 printf("bmap rebuild ino=%d\n", ino);
3349 if (!LINUX_S_ISDIR(inode->i_mode) ||
3350 !e2fsck_dir_will_be_rehashed(ctx, ino))
3351 e2fsck_rebuild_extents_later(ctx, ino);
3355 end_problem_latch(ctx, PR_LATCH_BLOCK);
3356 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3357 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3360 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3362 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3363 if (LINUX_S_ISDIR(inode->i_mode))
3364 ctx->fs_fragmented_dir++;
3366 ctx->fs_fragmented++;
3370 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3375 if (inode->i_flags & EXT2_INDEX_FL) {
3376 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3377 inode->i_flags &= ~EXT2_INDEX_FL;
3380 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3384 if (!pb.num_blocks && pb.is_dir &&
3385 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3386 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3387 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3388 ctx->fs_directory_count--;
3393 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3394 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
3395 !(inode->i_flags & EXT4_EA_INODE_FL)) {
3396 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3398 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
3399 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3400 ino, (ea_ibody_quota ?
3401 ea_ibody_quota->inodes : 0) +
3402 ea_block_quota.inodes + 1);
3405 if (!ext2fs_has_feature_huge_file(fs->super) ||
3406 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3407 pb.num_blocks *= (fs->blocksize / 512);
3408 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3410 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
3411 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3415 unsigned nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3416 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3421 flags = ctx->fs->flags;
3422 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3423 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3425 ctx->fs->flags = (flags &
3426 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3428 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3429 if (err || sz != inode->i_size) {
3433 } else if (inode->i_size & (fs->blocksize - 1))
3435 else if (nblock > (pb.last_block + 1))
3437 else if (nblock < (pb.last_block + 1)) {
3438 if (((pb.last_block + 1) - nblock) >
3439 fs->super->s_prealloc_dir_blocks)
3443 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3445 size = EXT2_I_SIZE(inode);
3446 if ((pb.last_init_lblock >= 0) &&
3447 /* allow allocated blocks to end of PAGE_SIZE */
3448 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3449 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3450 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3453 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3454 size > ext2_max_sizes[fs->super->s_log_block_size])
3455 /* too big for a direct/indirect-mapped file */
3457 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3459 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3460 /* too big for an extent-based file - 32bit ee_block */
3463 /* i_size for symlinks is checked elsewhere */
3464 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3465 /* Did inline_data set pctx->num earlier? */
3467 pctx->num = (pb.last_block + 1) * fs->blocksize;
3468 pctx->group = bad_size;
3469 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3470 if (LINUX_S_ISDIR(inode->i_mode))
3471 pctx->num &= 0xFFFFFFFFULL;
3472 ext2fs_inode_size_set(fs, inode, pctx->num);
3473 if (EXT2_I_SIZE(inode) == 0 &&
3474 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3475 memset(inode->i_block, 0,
3476 sizeof(inode->i_block));
3477 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3483 if (LINUX_S_ISREG(inode->i_mode) &&
3484 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3486 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
3487 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3488 (ext2fs_has_feature_huge_file(fs->super) &&
3489 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3490 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3491 pctx->num = pb.num_blocks;
3492 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3493 inode->i_blocks = pb.num_blocks;
3494 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3501 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3502 * a block mapped file, so rebuild it as an extent file. We can skip
3503 * symlinks because they're never rewritten.
3505 if (ext2fs_has_feature_bigalloc(fs->super) &&
3506 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3507 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3508 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3509 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3510 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3511 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3516 if (ctx->dirs_to_hash && pb.is_dir &&
3517 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3518 !(inode->i_flags & EXT2_INDEX_FL) &&
3519 ((inode->i_size / fs->blocksize) >= 3))
3520 e2fsck_rehash_dir_later(ctx, ino);
3524 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3529 * Helper function called by process block when an illegal block is
3530 * found. It returns a description about why the block is illegal
3532 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3536 static char problem[80];
3538 super = fs->super->s_first_data_block;
3539 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3540 if (block < super) {
3541 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3543 } else if (block >= ext2fs_blocks_count(fs->super)) {
3544 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3547 for (i = 0; i < fs->group_desc_count; i++) {
3548 if (block == super) {
3549 sprintf(problem, "is the superblock in group %d", i);
3552 if (block > super &&
3553 block <= (super + fs->desc_blocks)) {
3554 sprintf(problem, "is in the group descriptors "
3558 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3559 sprintf(problem, "is the block bitmap of group %d", i);
3562 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3563 sprintf(problem, "is the inode bitmap of group %d", i);
3566 if (block >= ext2fs_inode_table_loc(fs, i) &&
3567 (block < ext2fs_inode_table_loc(fs, i)
3568 + fs->inode_blocks_per_group)) {
3569 sprintf(problem, "is in the inode table of group %d",
3573 super += fs->super->s_blocks_per_group;
3580 * This is a helper function for check_blocks().
3582 static int process_block(ext2_filsys fs,
3584 e2_blkcnt_t blockcnt,
3585 blk64_t ref_block EXT2FS_ATTR((unused)),
3586 int ref_offset EXT2FS_ATTR((unused)),
3589 struct process_block_struct *p;
3590 struct problem_context *pctx;
3591 blk64_t blk = *block_nr;
3593 problem_t problem = 0;
3596 p = (struct process_block_struct *) priv_data;
3601 * For a directory, add logical block zero for processing even if it's
3602 * not mapped or we'll be perennially stuck with broken "." and ".."
3605 if (p->is_dir && blockcnt == 0 && blk == 0) {
3606 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3607 if (pctx->errcode) {
3609 pctx->num = blockcnt;
3610 goto failed_add_dir_block;
3619 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3624 * Simplistic fragmentation check. We merely require that the
3625 * file be contiguous. (Which can never be true for really
3626 * big files that are greater than a block group.)
3628 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3629 if (p->previous_block+1 != blk) {
3630 if (ctx->options & E2F_OPT_FRAGCHECK) {
3638 printf(_("%6lu(%c): expecting %6lu "
3639 "got phys %6lu (blkcnt %lld)\n"),
3640 (unsigned long) pctx->ino, type,
3641 (unsigned long) p->previous_block+1,
3642 (unsigned long) blk,
3649 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3650 problem = PR_1_TOOBIG_DIR;
3651 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3652 problem = PR_1_TOOBIG_REG;
3653 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3654 problem = PR_1_TOOBIG_SYMLINK;
3656 if (blk < fs->super->s_first_data_block ||
3657 blk >= ext2fs_blocks_count(fs->super))
3658 problem = PR_1_ILLEGAL_BLOCK_NUM;
3661 * If this IND/DIND/TIND block is squatting atop some critical metadata
3662 * (group descriptors, superblock, bitmap, inode table), any write to
3663 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3664 * fix that and restart fsck.
3667 p->ino != EXT2_RESIZE_INO &&
3668 blk < ctx->fs->super->s_blocks_count &&
3669 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3671 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3672 if ((ctx->options & E2F_OPT_NO) == 0)
3673 ctx->flags |= E2F_FLAG_RESTART_LATER;
3677 p->num_illegal_blocks++;
3679 * A bit of subterfuge here -- we're trying to fix a block
3680 * mapping, but the IND/DIND/TIND block could have collided
3681 * with some critical metadata. So, fix the in-core mapping so
3682 * iterate won't go insane, but return 0 instead of
3683 * BLOCK_CHANGED so that it won't write the remapping out to
3684 * our multiply linked block.
3686 * Even if we previously determined that an *IND block
3687 * conflicts with critical metadata, we must still try to
3688 * iterate the *IND block as if it is an *IND block to find and
3689 * mark the blocks it points to. Better to be overly cautious
3690 * with the used_blocks map so that we don't move the *IND
3691 * block to a block that's really in use!
3693 if (p->ino != EXT2_RESIZE_INO &&
3695 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3700 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3701 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3705 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3707 set_latch_flags(PR_LATCH_BLOCK,
3712 pctx->blkcount = blockcnt;
3713 if (fix_problem(ctx, problem, pctx)) {
3714 blk = *block_nr = 0;
3715 ret_code = BLOCK_CHANGED;
3716 p->inode_modified = 1;
3718 * If the directory block is too big and is beyond the
3719 * end of the FS, don't bother trying to add it for
3720 * processing -- the kernel would never have created a
3721 * directory this large, and we risk an ENOMEM abort.
3722 * In any case, the toobig handler for extent-based
3723 * directories also doesn't feed toobig blocks to
3726 if (problem == PR_1_TOOBIG_DIR)
3733 if (p->ino == EXT2_RESIZE_INO) {
3735 * The resize inode has already be sanity checked
3736 * during pass #0 (the superblock checks). All we
3737 * have to do is mark the double indirect block as
3738 * being in use; all of the other blocks are handled
3739 * by mark_table_blocks()).
3741 if (blockcnt == BLOCK_COUNT_DIND)
3742 mark_block_used(ctx, blk);
3744 } else if (!(ctx->fs->cluster_ratio_bits &&
3745 p->previous_block &&
3746 (EXT2FS_B2C(ctx->fs, blk) ==
3747 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3748 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3749 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3750 mark_block_used(ctx, blk);
3752 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3753 p->last_block, blk, blockcnt)) {
3754 pctx->blk = blockcnt;
3756 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3757 mark_block_used(ctx, blk);
3758 mark_block_used(ctx, blk);
3761 p->last_block = blockcnt;
3762 p->previous_block = blk;
3764 if (p->is_dir && (blockcnt >= 0)) {
3765 while (++p->last_db_block < blockcnt) {
3766 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3769 if (pctx->errcode) {
3771 pctx->num = p->last_db_block;
3772 goto failed_add_dir_block;
3775 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3777 if (pctx->errcode) {
3779 pctx->num = blockcnt;
3780 failed_add_dir_block:
3781 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3782 /* Should never get here */
3783 ctx->flags |= E2F_FLAG_ABORT;
3790 static int process_bad_block(ext2_filsys fs,
3792 e2_blkcnt_t blockcnt,
3793 blk64_t ref_block EXT2FS_ATTR((unused)),
3794 int ref_offset EXT2FS_ATTR((unused)),
3797 struct process_block_struct *p;
3798 blk64_t blk = *block_nr;
3799 blk64_t first_block;
3801 struct problem_context *pctx;
3807 p = (struct process_block_struct *) priv_data;
3811 pctx->ino = EXT2_BAD_INO;
3813 pctx->blkcount = blockcnt;
3815 if ((blk < fs->super->s_first_data_block) ||
3816 (blk >= ext2fs_blocks_count(fs->super))) {
3817 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3819 return BLOCK_CHANGED;
3825 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3827 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3829 return BLOCK_CHANGED;
3831 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3834 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3837 return BLOCK_CHANGED;
3839 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3842 mark_block_used(ctx, blk);
3846 printf ("DEBUG: Marking %u as bad.\n", blk);
3848 ctx->fs_badblocks_count++;
3850 * If the block is not used, then mark it as used and return.
3851 * If it is already marked as found, this must mean that
3852 * there's an overlap between the filesystem table blocks
3853 * (bitmaps and inode table) and the bad block list.
3855 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3856 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3860 * Try to find the where the filesystem block was used...
3862 first_block = fs->super->s_first_data_block;
3864 for (i = 0; i < fs->group_desc_count; i++ ) {
3867 if (!ext2fs_bg_has_super(fs, i))
3869 if (blk == first_block) {
3871 if (fix_problem(ctx,
3872 PR_1_BAD_PRIMARY_SUPERBLOCK,
3875 return BLOCK_CHANGED;
3879 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3882 if ((blk > first_block) &&
3883 (blk <= first_block + fs->desc_blocks)) {
3885 pctx->blk = *block_nr;
3886 if (fix_problem(ctx,
3887 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3889 return BLOCK_CHANGED;
3893 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3897 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3898 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3899 ctx->invalid_block_bitmap_flag[i]++;
3900 ctx->invalid_bitmaps++;
3904 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3905 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3906 ctx->invalid_inode_bitmap_flag[i]++;
3907 ctx->invalid_bitmaps++;
3911 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3912 (blk < (ext2fs_inode_table_loc(fs, i) +
3913 fs->inode_blocks_per_group))) {
3915 * If there are bad blocks in the inode table,
3916 * the inode scan code will try to do
3917 * something reasonable automatically.
3921 first_block += fs->super->s_blocks_per_group;
3924 * If we've gotten to this point, then the only
3925 * possibility is that the bad block inode meta data
3926 * is using a bad block.
3928 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3929 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3930 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3932 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3934 return BLOCK_CHANGED;
3936 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3943 /* Warn user that the block wasn't claimed */
3944 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3949 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3950 const char *name, int num, blk64_t *new_block)
3952 ext2_filsys fs = ctx->fs;
3954 blk64_t old_block = *new_block;
3957 unsigned flexbg_size;
3960 struct problem_context pctx;
3962 clear_problem_context(&pctx);
3965 pctx.blk = old_block;
3969 * For flex_bg filesystems, first try to allocate the metadata
3970 * within the flex_bg, and if that fails then try finding the
3971 * space anywhere in the filesystem.
3973 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3975 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3976 flexbg = group / flexbg_size;
3977 first_block = ext2fs_group_first_block2(fs,
3978 flexbg_size * flexbg);
3979 last_grp = group | (flexbg_size - 1);
3980 if (last_grp >= fs->group_desc_count)
3981 last_grp = fs->group_desc_count - 1;
3982 last_block = ext2fs_group_last_block2(fs, last_grp);
3984 last_block = ext2fs_group_last_block2(fs, group);
3985 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3986 num, ctx->block_found_map,
3988 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3989 pctx.errcode = ext2fs_get_free_blocks2(fs,
3990 fs->super->s_first_data_block,
3991 ext2fs_blocks_count(fs->super),
3992 num, ctx->block_found_map, new_block);
3995 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3996 ext2fs_unmark_valid(fs);
3997 ctx->flags |= E2F_FLAG_ABORT;
4000 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4002 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4003 ext2fs_unmark_valid(fs);
4004 ctx->flags |= E2F_FLAG_ABORT;
4007 ext2fs_mark_super_dirty(fs);
4008 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4009 pctx.blk2 = *new_block;
4010 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4011 PR_1_RELOC_TO), &pctx);
4013 for (i = 0; i < num; i++) {
4015 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4017 pctx.errcode = io_channel_read_blk64(fs->io,
4018 old_block + i, 1, buf);
4020 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4021 pctx.blk = (*new_block) + i;
4022 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4025 pctx.blk = (*new_block) + i;
4026 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4031 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4033 ext2fs_free_mem(&buf);
4037 * This routine gets called at the end of pass 1 if bad blocks are
4038 * detected in the superblock, group descriptors, inode_bitmaps, or
4039 * block bitmaps. At this point, all of the blocks have been mapped
4040 * out, so we can try to allocate new block(s) to replace the bad
4043 static void handle_fs_bad_blocks(e2fsck_t ctx)
4045 ext2_filsys fs = ctx->fs;
4047 blk64_t first_block;
4050 for (i = 0; i < fs->group_desc_count; i++) {
4051 first_block = ext2fs_group_first_block2(fs, i);
4053 if (ctx->invalid_block_bitmap_flag[i]) {
4054 new_blk = ext2fs_block_bitmap_loc(fs, i);
4055 new_table_block(ctx, first_block, i, _("block bitmap"),
4057 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4059 if (ctx->invalid_inode_bitmap_flag[i]) {
4060 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4061 new_table_block(ctx, first_block, i, _("inode bitmap"),
4063 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4065 if (ctx->invalid_inode_table_flag[i]) {
4066 new_blk = ext2fs_inode_table_loc(fs, i);
4067 new_table_block(ctx, first_block, i, _("inode table"),
4068 fs->inode_blocks_per_group,
4070 ext2fs_inode_table_loc_set(fs, i, new_blk);
4071 ctx->flags |= E2F_FLAG_RESTART;
4074 ctx->invalid_bitmaps = 0;
4078 * This routine marks all blocks which are used by the superblock,
4079 * group descriptors, inode bitmaps, and block bitmaps.
4081 static void mark_table_blocks(e2fsck_t ctx)
4083 ext2_filsys fs = ctx->fs;
4087 struct problem_context pctx;
4089 clear_problem_context(&pctx);
4091 for (i = 0; i < fs->group_desc_count; i++) {
4094 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4095 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4098 * Mark the blocks used for the inode table
4100 if (ext2fs_inode_table_loc(fs, i)) {
4101 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4102 j < fs->inode_blocks_per_group;
4104 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4107 if (!ctx->invalid_inode_table_flag[i] &&
4109 PR_1_ITABLE_CONFLICT, &pctx)) {
4110 ctx->invalid_inode_table_flag[i]++;
4111 ctx->invalid_bitmaps++;
4114 ext2fs_mark_block_bitmap2(
4115 ctx->block_found_map, b);
4116 ext2fs_mark_block_bitmap2(
4117 ctx->block_metadata_map, b);
4123 * Mark block used for the block bitmap
4125 if (ext2fs_block_bitmap_loc(fs, i)) {
4126 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4127 ext2fs_block_bitmap_loc(fs, i))) {
4128 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4129 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4130 ctx->invalid_block_bitmap_flag[i]++;
4131 ctx->invalid_bitmaps++;
4134 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4135 ext2fs_block_bitmap_loc(fs, i));
4136 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4137 ext2fs_block_bitmap_loc(fs, i));
4141 * Mark block used for the inode bitmap
4143 if (ext2fs_inode_bitmap_loc(fs, i)) {
4144 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4145 ext2fs_inode_bitmap_loc(fs, i))) {
4146 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4147 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4148 ctx->invalid_inode_bitmap_flag[i]++;
4149 ctx->invalid_bitmaps++;
4152 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4153 ext2fs_inode_bitmap_loc(fs, i));
4154 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4155 ext2fs_inode_bitmap_loc(fs, i));
4162 * These subroutines short circuits ext2fs_get_blocks and
4163 * ext2fs_check_directory; we use them since we already have the inode
4164 * structure, so there's no point in letting the ext2fs library read
4167 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4170 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4173 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4174 return EXT2_ET_CALLBACK_NOTHANDLED;
4176 for (i=0; i < EXT2_N_BLOCKS; i++)
4177 blocks[i] = ctx->stashed_inode->i_block[i];
4181 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
4182 struct ext2_inode *inode)
4184 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4186 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4187 return EXT2_ET_CALLBACK_NOTHANDLED;
4188 *inode = *ctx->stashed_inode;
4192 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
4193 struct ext2_inode *inode)
4195 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4197 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
4198 (inode != ctx->stashed_inode))
4199 *ctx->stashed_inode = *inode;
4200 return EXT2_ET_CALLBACK_NOTHANDLED;
4203 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
4205 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4207 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4208 return EXT2_ET_CALLBACK_NOTHANDLED;
4210 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4211 return EXT2_ET_NO_DIRECTORY;
4215 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4218 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4222 if (ctx->block_found_map) {
4223 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4227 if (fs->block_map) {
4228 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4229 ext2fs_mark_bb_dirty(fs);
4232 if (!fs->block_map) {
4233 retval = ext2fs_read_block_bitmap(fs);
4238 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4247 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4248 blk64_t len, blk64_t *pblk, blk64_t *plen)
4250 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4253 if (ctx->block_found_map)
4254 return ext2fs_new_range(fs, flags, goal, len,
4255 ctx->block_found_map, pblk, plen);
4257 if (!fs->block_map) {
4258 retval = ext2fs_read_block_bitmap(fs);
4263 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4267 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4269 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4271 /* Never free a critical metadata block */
4272 if (ctx->block_found_map &&
4273 ctx->block_metadata_map &&
4275 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4278 if (ctx->block_found_map) {
4280 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4282 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4286 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4287 blk_t num, int inuse)
4289 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4291 /* Never free a critical metadata block */
4292 if (ctx->block_found_map &&
4293 ctx->block_metadata_map &&
4295 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4298 if (ctx->block_found_map) {
4300 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4303 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4308 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4310 ext2_filsys fs = ctx->fs;
4312 if (use_shortcuts) {
4313 fs->get_blocks = pass1_get_blocks;
4314 fs->check_directory = pass1_check_directory;
4315 fs->read_inode = pass1_read_inode;
4316 fs->write_inode = pass1_write_inode;
4317 ctx->stashed_ino = 0;
4320 fs->check_directory = 0;
4322 fs->write_inode = 0;
4326 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4328 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4329 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4330 e2fsck_block_alloc_stats, 0);
4331 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4332 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4333 e2fsck_block_alloc_stats_range, NULL);