2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which inodes are casefolded. (inode_casefold_map)
27 * - A bitmap of which blocks are in use. (block_found_map)
28 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
29 * - The data blocks of the directory inodes. (dir_map)
30 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * - The encryption policy ID of each encrypted inode. (encrypted_files)
33 * Pass 1 is designed to stash away enough information so that the
34 * other passes should not need to read in the inode information
35 * during the normal course of a filesystem check. (Although if an
36 * inconsistency is detected, other passes may need to read in an
39 * Note that pass 1B will be invoked if there are any duplicate blocks
43 #define _GNU_SOURCE 1 /* get strnlen() */
56 #include <ext2fs/ext2_ext_attr.h>
57 /* todo remove this finally */
58 #include <ext2fs/ext2fsP.h>
63 #ifdef NO_INLINE_FUNCS
66 #define _INLINE_ inline
76 static int process_block(ext2_filsys fs, blk64_t *blocknr,
77 e2_blkcnt_t blockcnt, blk64_t ref_blk,
78 int ref_offset, void *priv_data);
79 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
80 e2_blkcnt_t blockcnt, blk64_t ref_blk,
81 int ref_offset, void *priv_data);
82 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
84 const struct ea_quota *ea_ibody_quota);
85 static void mark_table_blocks(e2fsck_t ctx);
86 static void alloc_bb_map(e2fsck_t ctx);
87 static void alloc_imagic_map(e2fsck_t ctx);
88 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
89 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino);
90 static void handle_fs_bad_blocks(e2fsck_t ctx);
91 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
92 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
93 dgrp_t group, void * priv_data);
94 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
95 char *block_buf, int adjust_sign);
96 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
98 struct process_block_struct {
100 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
101 fragmented:1, compressed:1, bbcheck:1,
106 e2_blkcnt_t last_init_lblock;
107 e2_blkcnt_t last_db_block;
108 int num_illegal_blocks;
109 blk64_t previous_block;
110 struct ext2_inode *inode;
111 struct problem_context *pctx;
112 ext2fs_block_bitmap fs_meta_blocks;
115 struct extent_tree_info eti;
118 struct process_inode_block {
120 struct ea_quota ea_ibody_quota;
121 struct ext2_inode_large inode;
124 struct scan_callback_struct {
127 struct process_inode_block *inodes_to_process;
128 int *process_inode_count;
131 static void process_inodes(e2fsck_t ctx, char *block_buf,
132 struct process_inode_block *inodes_to_process,
133 int *process_inode_count);
135 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
136 EXT2_MIN_BLOCK_LOG_SIZE + 1];
139 * Check to make sure a device inode is real. Returns 1 if the device
140 * checks out, 0 if not.
142 * Note: this routine is now also used to check FIFO's and Sockets,
143 * since they have the same requirement; the i_block fields should be
146 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
147 struct ext2_inode *inode)
152 * If the index or extents flag is set, then this is a bogus
155 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
159 * We should be able to do the test below all the time, but
160 * because the kernel doesn't forcibly clear the device
161 * inode's additional i_block fields, there are some rare
162 * occasions when a legitimate device inode will have non-zero
163 * additional i_block fields. So for now, we only complain
164 * when the immutable flag is set, which should never happen
165 * for devices. (And that's when the problem is caused, since
166 * you can't set or clear immutable flags for devices.) Once
167 * the kernel has been fixed we can change this...
169 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
170 for (i=4; i < EXT2_N_BLOCKS; i++)
171 if (inode->i_block[i])
178 * Check to make sure a symlink inode is real. Returns 1 if the symlink
179 * checks out, 0 if not.
181 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
182 struct ext2_inode *inode, char *buf)
187 if ((inode->i_size_high || inode->i_size == 0) ||
188 (inode->i_flags & EXT2_INDEX_FL))
191 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
194 if (inode->i_flags & EXT4_EXTENTS_FL)
196 if (ext2fs_inline_data_size(fs, ino, &inline_size))
198 if (inode->i_size != inline_size)
204 if (ext2fs_is_fast_symlink(inode)) {
205 if (inode->i_flags & EXT4_EXTENTS_FL)
207 buf = (char *)inode->i_block;
208 buflen = sizeof(inode->i_block);
210 ext2_extent_handle_t handle;
211 struct ext2_extent_info info;
212 struct ext2fs_extent extent;
216 if (inode->i_flags & EXT4_EXTENTS_FL) {
217 if (ext2fs_extent_open2(fs, ino, inode, &handle))
219 if (ext2fs_extent_get_info(handle, &info) ||
220 (info.num_entries != 1) ||
221 (info.max_depth != 0)) {
222 ext2fs_extent_free(handle);
225 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
227 (extent.e_lblk != 0) ||
228 (extent.e_len != 1)) {
229 ext2fs_extent_free(handle);
233 ext2fs_extent_free(handle);
235 blk = inode->i_block[0];
237 for (i = 1; i < EXT2_N_BLOCKS; i++)
238 if (inode->i_block[i])
242 if (blk < fs->super->s_first_data_block ||
243 blk >= ext2fs_blocks_count(fs->super))
246 if (io_channel_read_blk64(fs->io, blk, 1, buf))
249 buflen = fs->blocksize;
252 if (inode->i_flags & EXT4_ENCRYPT_FL)
253 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
255 len = strnlen(buf, buflen);
260 if (len != inode->i_size)
266 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
268 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
269 static void check_extents_inlinedata(e2fsck_t ctx,
270 struct problem_context *pctx)
272 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
275 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
278 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
279 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
281 #undef BAD_SPECIAL_FLAGS
284 * If the immutable (or append-only) flag is set on the inode, offer
287 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
288 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
301 * If device, fifo or socket, check size is zero -- if not offer to
304 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
306 struct ext2_inode *inode = pctx->inode;
308 if (EXT2_I_SIZE(inode) == 0)
311 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
314 ext2fs_inode_size_set(ctx->fs, inode, 0);
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * For a given size, calculate how many blocks would be charged towards quota.
321 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
325 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
326 return EXT2FS_C2B(fs, clusters);
330 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
333 static problem_t check_large_ea_inode(e2fsck_t ctx,
334 struct ext2_ext_attr_entry *entry,
335 struct problem_context *pctx,
336 blk64_t *quota_blocks)
338 struct ext2_inode inode;
342 /* Check if inode is within valid range */
343 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
344 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
345 pctx->num = entry->e_value_inum;
346 return PR_1_ATTR_VALUE_EA_INODE;
349 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
351 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
353 com_err("check_large_ea_inode", retval,
354 _("while hashing entry with e_value_inum = %u"),
355 entry->e_value_inum);
359 if (hash == entry->e_hash) {
360 *quota_blocks = size_to_quota_blocks(ctx->fs,
361 entry->e_value_size);
363 /* This might be an old Lustre-style ea_inode reference. */
364 if (inode.i_mtime == pctx->ino &&
365 inode.i_generation == pctx->inode->i_generation) {
368 /* If target inode is also missing EA_INODE flag,
369 * this is likely to be a bad reference.
371 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
372 pctx->num = entry->e_value_inum;
373 return PR_1_ATTR_VALUE_EA_INODE;
375 pctx->num = entry->e_hash;
376 return PR_1_ATTR_HASH;
381 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
382 pctx->num = entry->e_value_inum;
383 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
384 inode.i_flags |= EXT4_EA_INODE_FL;
385 e2fsck_pass1_fix_lock(ctx);
386 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
388 e2fsck_pass1_fix_unlock(ctx);
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");
652 static _INLINE_ int is_blocks_used(e2fsck_t ctx, blk64_t block,
657 /* used to avoid duplicate output from below */
658 retval = ext2fs_test_block_bitmap_range2_valid(ctx->block_found_map,
663 retval = ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num);
665 e2fsck_pass1_block_map_r_lock(ctx);
667 retval = ext2fs_test_block_bitmap_range2(
668 ctx->global_ctx->block_found_map, block, num);
669 e2fsck_pass1_block_map_r_unlock(ctx);
678 * Check to see if the inode might really be a directory, despite i_mode
680 * This is a lot of complexity for something for which I'm not really
681 * convinced happens frequently in the wild. If for any reason this
682 * causes any problems, take this code out.
683 * [tytso:20070331.0827EDT]
685 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
688 struct ext2_inode *inode = pctx->inode;
689 struct ext2_dir_entry *dirent;
692 unsigned int i, rec_len, not_device = 0;
697 * If the mode looks OK, we believe it. If the first block in
698 * the i_block array is 0, this cannot be a directory. If the
699 * inode is extent-mapped, it is still the case that the latter
700 * cannot be 0 - the magic number in the extent header would make
703 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
704 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
708 * Check the block numbers in the i_block array for validity:
709 * zero blocks are skipped (but the first one cannot be zero -
710 * see above), other blocks are checked against the first and
711 * max data blocks (from the the superblock) and against the
712 * block bitmap. Any invalid block found means this cannot be
715 * If there are non-zero blocks past the fourth entry, then
716 * this cannot be a device file: we remember that for the next
719 * For extent mapped files, we don't do any sanity checking:
720 * just try to get the phys block of logical block 0 and run
723 * For inline data files, we just try to get the size of inline
724 * data. If it's true, we will treat it as a directory.
727 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
728 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
729 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
732 unsigned int rec_len2;
733 struct ext2_dir_entry de;
735 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
738 * If the size isn't a multiple of 4, it's probably not a
744 * If the first 10 bytes don't look like a directory entry,
745 * it's probably not a directory.
747 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
748 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
749 EXT2_DIR_REC_LEN(0));
750 dotdot = ext2fs_le32_to_cpu(dotdot);
751 de.inode = ext2fs_le32_to_cpu(de.inode);
752 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
753 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
754 if (dotdot >= ctx->fs->super->s_inodes_count ||
755 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
756 dotdot != EXT2_ROOT_INO) ||
757 de.inode >= ctx->fs->super->s_inodes_count ||
758 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
760 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
761 EXT4_INLINE_DATA_DOTDOT_SIZE)
763 /* device files never have a "system.data" entry */
765 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
767 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
770 /* device files are never extent mapped */
773 for (i=0; i < EXT2_N_BLOCKS; i++) {
774 blk = inode->i_block[i];
780 if (blk < ctx->fs->super->s_first_data_block ||
781 blk >= ext2fs_blocks_count(ctx->fs->super) ||
782 is_blocks_used(ctx, blk, 1))
783 return; /* Invalid block, can't be dir */
785 blk = inode->i_block[0];
789 * If the mode says this is a device file and the i_links_count field
790 * is sane and we have not ruled it out as a device file previously,
791 * we declare it a device file, not a directory.
793 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
794 (inode->i_links_count == 1) && !not_device)
797 /* read the first block */
798 ehandler_operation(_("reading directory block"));
799 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
800 ehandler_operation(0);
804 dirent = (struct ext2_dir_entry *) buf;
805 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
808 if ((ext2fs_dirent_name_len(dirent) != 1) ||
809 (dirent->name[0] != '.') ||
810 (dirent->inode != pctx->ino) ||
813 (rec_len >= ctx->fs->blocksize - 12))
816 dirent = (struct ext2_dir_entry *) (buf + rec_len);
817 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
820 if ((ext2fs_dirent_name_len(dirent) != 2) ||
821 (dirent->name[0] != '.') ||
822 (dirent->name[1] != '.') ||
828 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
829 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
830 e2fsck_write_inode_full(ctx, pctx->ino, inode,
831 EXT2_INODE_SIZE(ctx->fs->super),
832 "check_is_really_dir");
836 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
837 int flags, ext2_icount_t hint,
840 unsigned int threshold;
841 unsigned int save_type;
849 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
851 profile_get_uint(ctx->profile, "scratch_files",
852 "numdirs_threshold", 0, 0, &threshold);
853 profile_get_boolean(ctx->profile, "scratch_files",
854 "icount", 0, 1, &enable);
856 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
858 num_dirs = 1024; /* Guess */
860 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
861 (!threshold || num_dirs > threshold)) {
862 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
867 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
869 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
870 flags |= EXT2_ICOUNT_OPT_FULLMAP;
871 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
872 ctx->fs->default_bitmap_type = save_type;
876 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
878 struct problem_context *pctx)
881 struct ext2_inode_large inode;
884 * Reread inode. If we don't see checksum error, then this inode
885 * has been fixed elsewhere.
887 ctx->stashed_ino = 0;
888 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
890 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
896 * Checksum still doesn't match. That implies that the inode passes
897 * all the sanity checks, so maybe the checksum is simply corrupt.
898 * See if the user will go for fixing that.
900 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
904 e2fsck_pass1_fix_lock(ctx);
905 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
907 e2fsck_pass1_fix_unlock(ctx);
911 static void reserve_block_for_root_repair(e2fsck_t ctx)
915 ext2_filsys fs = ctx->fs;
917 ctx->root_repair_block = 0;
918 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
921 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
924 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
925 ctx->root_repair_block = blk;
928 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
932 ext2_filsys fs = ctx->fs;
933 static const char name[] = "lost+found";
936 ctx->lnf_repair_block = 0;
937 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
940 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
943 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
944 ctx->lnf_repair_block = blk;
948 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
952 struct ext2_xattr_handle *handle;
955 retval = ext2fs_xattrs_open(fs, ino, &handle);
959 retval = ext2fs_xattrs_read(handle);
963 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
968 (void) ext2fs_xattrs_close(&handle);
972 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
973 struct problem_context *pctx,
980 * If the inode failed the checksum and the user didn't
981 * clear the inode, test the checksum again -- if it still
982 * fails, ask the user if the checksum should be corrected.
984 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
986 ctx->flags |= E2F_FLAG_ABORT;
988 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
990 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
991 if ((ctx)->flags & E2F_FLAG_ABORT) { \
992 e2fsck_pass1_check_unlock(ctx); \
997 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
1002 for (i = 0; i < EXT2_N_BLOCKS; i++) {
1003 x = inode->i_block[i];
1004 #ifdef WORDS_BIGENDIAN
1005 x = ext2fs_swab32(x);
1007 if (x >= ext2fs_blocks_count(fs->super))
1015 * Figure out what to do with an inode that has both extents and inline data
1016 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
1018 static int fix_inline_data_extents_file(e2fsck_t ctx,
1020 struct ext2_inode *inode,
1022 struct problem_context *pctx)
1024 size_t max_inline_ea_size;
1025 ext2_filsys fs = ctx->fs;
1028 /* Both feature flags not set? Just run the regular checks */
1029 if (!ext2fs_has_feature_extents(fs->super) &&
1030 !ext2fs_has_feature_inline_data(fs->super))
1033 /* Clear both flags if it's a special file */
1034 if (LINUX_S_ISCHR(inode->i_mode) ||
1035 LINUX_S_ISBLK(inode->i_mode) ||
1036 LINUX_S_ISFIFO(inode->i_mode) ||
1037 LINUX_S_ISSOCK(inode->i_mode)) {
1038 check_extents_inlinedata(ctx, pctx);
1042 /* If it looks like an extent tree, try to clear inlinedata */
1043 if (ext2fs_extent_header_verify(inode->i_block,
1044 sizeof(inode->i_block)) == 0 &&
1045 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1046 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1051 /* If it looks short enough to be inline data, try to clear extents */
1052 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1053 max_inline_ea_size = inode_size -
1054 (EXT2_GOOD_OLD_INODE_SIZE +
1055 ((struct ext2_inode_large *)inode)->i_extra_isize);
1057 max_inline_ea_size = 0;
1058 if (EXT2_I_SIZE(inode) <
1059 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1060 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1061 inode->i_flags &= ~EXT4_EXTENTS_FL;
1067 * Too big for inline data, but no evidence of extent tree -
1068 * maybe it's a block map file? If the mappings all look valid?
1070 if (could_be_block_map(fs, inode) &&
1071 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1072 #ifdef WORDS_BIGENDIAN
1075 for (i = 0; i < EXT2_N_BLOCKS; i++)
1076 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1079 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1084 /* Oh well, just clear the busted inode. */
1085 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1086 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1092 e2fsck_write_inode(ctx, ino, inode, "pass1");
1097 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1099 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1100 dgrp_t start = *group, grp, grp_end = ctx->fs->group_desc_count;
1101 blk64_t blocks_to_read = 0;
1102 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1105 if (ctx->fs->fs_num_threads > 1)
1106 grp_end = ctx->thread_info.et_group_end;
1108 if (ctx->readahead_kb == 0)
1111 /* Keep iterating groups until we have enough to readahead */
1112 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1113 for (grp = start; grp < grp_end; grp++) {
1114 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1116 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1117 ext2fs_bg_itable_unused(ctx->fs, grp);
1118 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1120 if (blocks_to_read * ctx->fs->blocksize >
1121 ctx->readahead_kb * 1024)
1125 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1127 if (err == EAGAIN) {
1128 ctx->readahead_kb /= 2;
1134 /* Error; disable itable readahead */
1135 *group = ctx->fs->group_desc_count;
1136 *next_ino = ctx->fs->super->s_inodes_count;
1139 * Don't do more readahead until we've reached the first inode
1140 * of the last inode scan buffer block for the last group.
1143 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1144 ctx->inode_buffer_blocks :
1145 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1146 ctx->fs->blocksize /
1147 EXT2_INODE_SIZE(ctx->fs->super);
1149 *next_ino = inodes_in_group -
1150 (inodes_in_group % inodes_per_buffer) + 1 +
1151 (grp * ctx->fs->super->s_inodes_per_group);
1156 * Check if the passed ino is one of the used superblock quota inodes.
1158 * Before the quota inodes were journaled, older superblock quota inodes
1159 * were just regular files in the filesystem and not reserved inodes. This
1160 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1161 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1163 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1165 enum quota_type qtype;
1167 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1168 if (*quota_sb_inump(sb, qtype) == ino)
1175 * Check if the passed ino is one of the reserved quota inodes.
1176 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1177 * inodes. These inodes may or may not be in use by the quota feature.
1179 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1181 enum quota_type qtype;
1183 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1184 if (quota_type2inum(qtype, fs->super) == ino)
1190 static int e2fsck_should_abort(e2fsck_t ctx)
1192 e2fsck_t global_ctx;
1194 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1197 if (ctx->global_ctx) {
1198 global_ctx = ctx->global_ctx;
1199 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1205 static void init_ext2_max_sizes()
1211 * Init ext2_max_sizes which will be immutable and shared between
1214 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1216 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1217 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1218 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1219 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1220 max_sizes = (max_sizes * (1UL << i));
1221 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1227 /* TODO: tdb needs to be handled properly for multiple threads*/
1228 static int multiple_threads_supported(e2fsck_t ctx)
1231 unsigned int threshold;
1232 ext2_ino_t num_dirs;
1237 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
1239 profile_get_uint(ctx->profile, "scratch_files",
1240 "numdirs_threshold", 0, 0, &threshold);
1241 profile_get_boolean(ctx->profile, "scratch_files",
1242 "icount", 0, 1, &enable);
1244 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
1246 num_dirs = 1024; /* Guess */
1248 /* tdb is unsupported now */
1249 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
1250 (!threshold || num_dirs > threshold))
1257 * Even though we could specify number of threads,
1258 * but it might be more than the whole filesystem
1259 * block groups, correct it here.
1261 static void e2fsck_pass1_set_thread_num(e2fsck_t ctx)
1263 unsigned flexbg_size = 1;
1264 ext2_filsys fs = ctx->fs;
1265 int num_threads = ctx->fs_num_threads;
1268 if (num_threads < 1) {
1273 if (!multiple_threads_supported(ctx)) {
1275 fprintf(stderr, "Fall through single thread for pass1 "
1276 "because tdb could not handle properly\n");
1280 if (ext2fs_has_feature_flex_bg(fs->super))
1281 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
1282 max_threads = fs->group_desc_count / flexbg_size;
1283 if (max_threads == 0)
1286 if (num_threads > max_threads) {
1287 fprintf(stderr, "Use max possible thread num: %d instead\n",
1289 num_threads = max_threads;
1292 ctx->fs_num_threads = num_threads;
1293 ctx->fs->fs_num_threads = num_threads;
1298 * We need call mark_table_blocks() before multiple
1299 * thread start, since all known system blocks should be
1300 * marked and checked later.
1302 static errcode_t e2fsck_pass1_prepare(e2fsck_t ctx)
1304 struct problem_context pctx;
1305 ext2_filsys fs = ctx->fs;
1306 unsigned long long readahead_kb;
1308 init_ext2_max_sizes();
1310 e2fsck_pass1_set_thread_num(ctx);
1312 /* If we can do readahead, figure out how many groups to pull in. */
1313 if (!e2fsck_can_readahead(ctx->fs))
1314 ctx->readahead_kb = 0;
1315 else if (ctx->readahead_kb == ~0ULL)
1316 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1319 /* don't use more than 1/10 of memory for threads checking */
1320 readahead_kb = get_memory_size() / (10 * ctx->fs_num_threads);
1321 /* maybe better disable RA if this is too small? */
1322 if (ctx->readahead_kb > readahead_kb)
1323 ctx->readahead_kb = readahead_kb;
1325 clear_problem_context(&pctx);
1326 if (!(ctx->options & E2F_OPT_PREEN))
1327 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1329 pctx.errcode = e2fsck_allocate_subcluster_bitmap(ctx->fs,
1330 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1331 "block_found_map", &ctx->block_found_map);
1334 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1335 ctx->flags |= E2F_FLAG_ABORT;
1336 return pctx.errcode;
1338 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
1339 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1340 "block_metadata_map", &ctx->block_metadata_map);
1343 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1344 ctx->flags |= E2F_FLAG_ABORT;
1345 return pctx.errcode;
1348 mark_table_blocks(ctx);
1349 pctx.errcode = ext2fs_convert_subcluster_bitmap(ctx->fs,
1350 &ctx->block_found_map);
1352 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1353 ctx->flags |= E2F_FLAG_ABORT;
1354 return pctx.errcode;
1357 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
1358 _("multiply claimed block map"),
1359 EXT2FS_BMAP64_RBTREE, "block_dup_map",
1360 &ctx->block_dup_map);
1363 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
1365 /* Should never get here */
1366 ctx->flags |= E2F_FLAG_ABORT;
1367 return pctx.errcode;
1370 if (ext2fs_has_feature_mmp(fs->super) &&
1371 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1372 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1373 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1374 fs->super->s_mmp_block);
1376 pthread_rwlock_init(&ctx->fs_fix_rwlock, NULL);
1377 pthread_rwlock_init(&ctx->fs_block_map_rwlock, NULL);
1378 if (ctx->fs_num_threads > 1)
1379 ctx->fs_need_locking = 1;
1385 static void e2fsck_pass1_post(e2fsck_t ctx)
1387 struct problem_context pctx;
1388 ext2_filsys fs = ctx->fs;
1391 if (e2fsck_should_abort(ctx))
1394 block_buf = (char *)e2fsck_allocate_memory(ctx, ctx->fs->blocksize * 3,
1395 "block interate buffer");
1396 reserve_block_for_root_repair(ctx);
1397 reserve_block_for_lnf_repair(ctx);
1400 * If any extended attribute blocks' reference counts need to
1401 * be adjusted, either up (ctx->refcount_extra), or down
1402 * (ctx->refcount), then fix them.
1404 if (ctx->refcount) {
1405 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1406 ea_refcount_free(ctx->refcount);
1409 if (ctx->refcount_extra) {
1410 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1412 ea_refcount_free(ctx->refcount_extra);
1413 ctx->refcount_extra = 0;
1416 if (ctx->invalid_bitmaps)
1417 handle_fs_bad_blocks(ctx);
1419 /* We don't need the block_ea_map any more */
1420 if (ctx->block_ea_map) {
1421 ext2fs_free_block_bitmap(ctx->block_ea_map);
1422 ctx->block_ea_map = 0;
1425 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1426 struct ext2_inode *inode;
1427 int inode_size = EXT2_INODE_SIZE(fs->super);
1428 inode = e2fsck_allocate_memory(ctx, inode_size,
1431 clear_problem_context(&pctx);
1432 pctx.errcode = ext2fs_create_resize_inode(fs);
1434 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1436 ctx->flags |= E2F_FLAG_ABORT;
1437 ext2fs_free_mem(&inode);
1438 ext2fs_free_mem(&block_buf);
1443 if (!pctx.errcode) {
1444 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1446 inode->i_mtime = ctx->now;
1447 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1450 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1451 ext2fs_free_mem(&inode);
1454 if (ctx->flags & E2F_FLAG_RESTART) {
1455 ext2fs_free_mem(&block_buf);
1459 if (ctx->block_dup_map) {
1460 if (!(ctx->flags & E2F_FLAG_DUP_BLOCK)) {
1461 ext2fs_free_mem(&block_buf);
1464 if (ctx->options & E2F_OPT_PREEN) {
1465 clear_problem_context(&pctx);
1466 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1468 e2fsck_pass1_dupblocks(ctx, block_buf);
1469 ext2fs_free_mem(&block_buf);
1470 ctx->flags &= ~E2F_FLAG_DUP_BLOCK;
1473 ctx->flags |= E2F_FLAG_ALLOC_OK;
1477 void e2fsck_pass1_run(e2fsck_t ctx)
1480 ext2_filsys fs = ctx->fs;
1482 struct ext2_inode *inode = NULL;
1483 ext2_inode_scan scan = NULL;
1484 char *block_buf = NULL;
1485 #ifdef RESOURCE_TRACK
1486 struct resource_track rtrack;
1488 unsigned char frag, fsize;
1489 struct problem_context pctx;
1490 struct scan_callback_struct scan_struct;
1491 struct ext2_super_block *sb = ctx->fs->super;
1493 const char *eop_next_inode = _("getting next inode from scan");
1494 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1495 int low_dtime_check = 1;
1496 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1497 unsigned int bufsize;
1498 int failed_csum = 0;
1499 ext2_ino_t ino_threshold = 0;
1500 dgrp_t ra_group = 0;
1501 struct ea_quota ea_ibody_quota;
1502 struct process_inode_block *inodes_to_process;
1503 int process_inode_count;
1505 init_resource_track(&rtrack, ctx->fs->io);
1506 clear_problem_context(&pctx);
1508 pass1_readahead(ctx, &ra_group, &ino_threshold);
1509 if (ext2fs_has_feature_dir_index(fs->super) &&
1510 !(ctx->options & E2F_OPT_NO)) {
1511 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1512 ctx->dirs_to_hash = 0;
1516 mtrace_print("Pass 1");
1519 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1520 extent_fs = ext2fs_has_feature_extents(sb);
1521 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1522 casefold_fs = ext2fs_has_feature_casefold(sb);
1525 * Allocate bitmaps structures
1527 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1528 EXT2FS_BMAP64_RBTREE,
1530 &ctx->inode_used_map);
1533 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1534 ctx->flags |= E2F_FLAG_ABORT;
1537 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1538 _("directory inode map"),
1539 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1540 EXT2FS_BMAP64_AUTODIR,
1541 "inode_dir_map", &ctx->inode_dir_map);
1544 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1545 ctx->flags |= E2F_FLAG_ABORT;
1548 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1549 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1550 "inode_reg_map", &ctx->inode_reg_map);
1553 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1554 ctx->flags |= E2F_FLAG_ABORT;
1559 e2fsck_allocate_inode_bitmap(fs,
1560 _("inode casefold map"),
1561 EXT2FS_BMAP64_RBTREE,
1562 "inode_casefold_map",
1563 &ctx->inode_casefold_map);
1566 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1567 ctx->flags |= E2F_FLAG_ABORT;
1571 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1572 &ctx->inode_link_info);
1574 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1575 ctx->flags |= E2F_FLAG_ABORT;
1578 bufsize = inode_size;
1579 if (bufsize < sizeof(struct ext2_inode_large))
1580 bufsize = sizeof(struct ext2_inode_large);
1581 inode = (struct ext2_inode *)
1582 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1584 inodes_to_process = (struct process_inode_block *)
1585 e2fsck_allocate_memory(ctx,
1586 (ctx->process_inode_size *
1587 sizeof(struct process_inode_block)),
1588 "array of inodes to process");
1589 process_inode_count = 0;
1591 pctx.errcode = ext2fs_init_dblist(fs, 0);
1593 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1594 ctx->flags |= E2F_FLAG_ABORT;
1599 * If the last orphan field is set, clear it, since the pass1
1600 * processing will automatically find and clear the orphans.
1601 * In the future, we may want to try using the last_orphan
1602 * linked list ourselves, but for now, we clear it so that the
1603 * ext3 mount code won't get confused.
1605 if (!(ctx->options & E2F_OPT_READONLY)) {
1606 if (fs->super->s_last_orphan) {
1607 fs->super->s_last_orphan = 0;
1608 ext2fs_mark_super_dirty(fs);
1612 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1613 "block interate buffer");
1614 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1615 e2fsck_use_inode_shortcuts(ctx, 1);
1616 e2fsck_intercept_block_allocations(ctx);
1617 old_op = ehandler_operation(_("opening inode scan"));
1618 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1620 ehandler_operation(old_op);
1622 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1623 ctx->flags |= E2F_FLAG_ABORT;
1626 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1627 EXT2_SF_WARN_GARBAGE_INODES, 0);
1628 ctx->stashed_inode = inode;
1629 scan_struct.ctx = ctx;
1630 scan_struct.block_buf = block_buf;
1631 scan_struct.inodes_to_process = inodes_to_process;
1632 scan_struct.process_inode_count = &process_inode_count;
1633 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1634 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1635 ctx->fs->group_desc_count)))
1637 if ((fs->super->s_wtime &&
1638 fs->super->s_wtime < fs->super->s_inodes_count) ||
1639 (fs->super->s_mtime &&
1640 fs->super->s_mtime < fs->super->s_inodes_count) ||
1641 (fs->super->s_mkfs_time &&
1642 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1643 low_dtime_check = 0;
1645 /* Set up ctx->lost_and_found if possible */
1646 (void) e2fsck_get_lost_and_found(ctx, 0);
1649 if (ctx->global_ctx) {
1650 if (ctx->options & E2F_OPT_DEBUG &&
1651 ctx->options & E2F_OPT_MULTITHREAD)
1652 fprintf(stderr, "thread %d jumping to group %d\n",
1653 ctx->thread_info.et_thread_index,
1654 ctx->thread_info.et_group_start);
1655 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1656 ctx->thread_info.et_group_start);
1658 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1659 ctx->flags |= E2F_FLAG_ABORT;
1666 e2fsck_pass1_check_lock(ctx);
1667 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1668 if (e2fsck_mmp_update(fs))
1669 fatal_error(ctx, 0);
1671 old_op = ehandler_operation(eop_next_inode);
1672 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1674 if (ino > ino_threshold)
1675 pass1_readahead(ctx, &ra_group, &ino_threshold);
1676 ehandler_operation(old_op);
1677 if (e2fsck_should_abort(ctx)) {
1678 e2fsck_pass1_check_unlock(ctx);
1681 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1683 * If badblocks says badblocks is bad, offer to clear
1684 * the list, update the in-core bb list, and restart
1687 if (ino == EXT2_BAD_INO &&
1688 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1692 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1693 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1694 ctx->fs->badblocks = NULL;
1695 err = ext2fs_read_bb_inode(ctx->fs,
1696 &ctx->fs->badblocks);
1698 fix_problem(ctx, PR_1_ISCAN_ERROR,
1700 ctx->flags |= E2F_FLAG_ABORT;
1701 e2fsck_pass1_check_unlock(ctx);
1704 ctx->flags |= E2F_FLAG_RESTART;
1705 err = ext2fs_inode_scan_goto_blockgroup(scan,
1708 fix_problem(ctx, PR_1_ISCAN_ERROR,
1710 ctx->flags |= E2F_FLAG_ABORT;
1711 e2fsck_pass1_check_unlock(ctx);
1714 e2fsck_pass1_check_unlock(ctx);
1717 if (!ctx->inode_bb_map)
1719 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1720 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1721 e2fsck_pass1_check_unlock(ctx);
1724 if (pctx.errcode == EXT2_ET_SCAN_FINISHED) {
1725 e2fsck_pass1_check_unlock(ctx);
1729 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1730 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1731 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1732 ctx->flags |= E2F_FLAG_ABORT;
1733 e2fsck_pass1_check_unlock(ctx);
1737 e2fsck_pass1_check_unlock(ctx);
1741 if (ctx->global_ctx)
1742 ctx->thread_info.et_inode_number++;
1746 ctx->stashed_ino = ino;
1748 /* Clear trashed inode? */
1749 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1750 inode->i_links_count > 0 &&
1751 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1753 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1755 failed_csum = pctx.errcode != 0;
1758 * Check for inodes who might have been part of the
1759 * orphaned list linked list. They should have gotten
1760 * dealt with by now, unless the list had somehow been
1763 * FIXME: In the future, inodes which are still in use
1764 * (and which are therefore) pending truncation should
1765 * be handled specially. Right now we just clear the
1766 * dtime field, and the normal e2fsck handling of
1767 * inodes where i_size and the inode blocks are
1768 * inconsistent is to fix i_size, instead of releasing
1769 * the extra blocks. This won't catch the inodes that
1770 * was at the end of the orphan list, but it's better
1771 * than nothing. The right answer is that there
1772 * shouldn't be any bugs in the orphan list handling. :-)
1774 if (inode->i_dtime && low_dtime_check &&
1775 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1776 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1777 inode->i_dtime = inode->i_links_count ?
1779 e2fsck_write_inode(ctx, ino, inode,
1785 if (inode->i_links_count) {
1786 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1787 ino, inode->i_links_count);
1789 pctx.num = inode->i_links_count;
1790 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1791 ctx->flags |= E2F_FLAG_ABORT;
1792 e2fsck_pass1_check_unlock(ctx);
1795 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1796 !quota_inum_is_reserved(fs, ino)) {
1797 if (!inode->i_dtime && inode->i_mode) {
1798 if (fix_problem(ctx,
1799 PR_1_ZERO_DTIME, &pctx)) {
1800 inode->i_dtime = ctx->now;
1801 e2fsck_write_inode(ctx, ino, inode,
1806 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1807 e2fsck_pass1_check_unlock(ctx);
1811 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1812 ((!LINUX_S_ISDIR(inode->i_mode) &&
1813 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1815 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1816 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1817 e2fsck_write_inode(ctx, ino, inode, "pass1");
1820 /* Conflicting inlinedata/extents inode flags? */
1821 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1822 (inode->i_flags & EXT4_EXTENTS_FL)) {
1823 int res = fix_inline_data_extents_file(ctx, ino, inode,
1827 /* skip FINISH_INODE_LOOP */
1828 e2fsck_pass1_check_unlock(ctx);
1833 /* Test for incorrect inline_data flags settings. */
1834 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1835 (ino >= EXT2_FIRST_INODE(fs->super))) {
1838 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1839 if (!pctx.errcode &&
1840 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1841 e2fsck_pass1_fix_lock(ctx);
1842 ext2fs_set_feature_inline_data(sb);
1843 ext2fs_mark_super_dirty(fs);
1844 e2fsck_pass1_fix_unlock(ctx);
1846 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1847 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1848 /* skip FINISH_INODE_LOOP */
1849 e2fsck_pass1_check_unlock(ctx);
1854 /* Test for inline data flag but no attr */
1855 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1856 (ino >= EXT2_FIRST_INODE(fs->super))) {
1863 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1864 err = get_inline_data_ea_size(fs, ino, &size);
1865 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1866 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1870 /* Everything is awesome... */
1872 case EXT2_ET_BAD_EA_BLOCK_NUM:
1873 case EXT2_ET_BAD_EA_HASH:
1874 case EXT2_ET_BAD_EA_HEADER:
1875 case EXT2_ET_EA_BAD_NAME_LEN:
1876 case EXT2_ET_EA_BAD_VALUE_SIZE:
1877 case EXT2_ET_EA_KEY_NOT_FOUND:
1878 case EXT2_ET_EA_NO_SPACE:
1879 case EXT2_ET_MISSING_EA_FEATURE:
1880 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1881 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1882 case EXT2_ET_INLINE_DATA_NO_SPACE:
1883 case EXT2_ET_NO_INLINE_DATA:
1884 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1885 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1886 case EXT2_ET_EA_INODE_CORRUPTED:
1887 /* broken EA or no system.data EA; truncate */
1888 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1890 err = ext2fs_inode_size_set(fs, inode, 0);
1893 ctx->flags |= E2F_FLAG_ABORT;
1894 e2fsck_pass1_check_unlock(ctx);
1897 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1898 memset(&inode->i_block, 0,
1899 sizeof(inode->i_block));
1900 e2fsck_write_inode(ctx, ino, inode,
1906 /* Some other kind of non-xattr error? */
1908 ctx->flags |= E2F_FLAG_ABORT;
1909 e2fsck_pass1_check_unlock(ctx);
1915 * Test for incorrect extent flag settings.
1917 * On big-endian machines we must be careful:
1918 * When the inode is read, the i_block array is not swapped
1919 * if the extent flag is set. Therefore if we are testing
1920 * for or fixing a wrongly-set flag, we must potentially
1921 * (un)swap before testing, or after fixing.
1925 * In this case the extents flag was set when read, so
1926 * extent_header_verify is ok. If the inode is cleared,
1927 * no need to swap... so no extra swapping here.
1929 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1930 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1931 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1932 if ((ext2fs_extent_header_verify(inode->i_block,
1933 sizeof(inode->i_block)) == 0) &&
1934 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1935 e2fsck_pass1_fix_lock(ctx);
1936 ext2fs_set_feature_extents(sb);
1937 ext2fs_mark_super_dirty(fs);
1939 e2fsck_pass1_fix_unlock(ctx);
1940 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1942 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1943 if (ino == EXT2_BAD_INO)
1944 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1946 /* skip FINISH_INODE_LOOP */
1947 e2fsck_pass1_check_unlock(ctx);
1953 * For big-endian machines:
1954 * If the inode didn't have the extents flag set when it
1955 * was read, then the i_blocks array was swapped. To test
1956 * as an extents header, we must swap it back first.
1957 * IF we then set the extents flag, the entire i_block
1958 * array must be un/re-swapped to make it proper extents data.
1960 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1961 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1962 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1963 (LINUX_S_ISREG(inode->i_mode) ||
1964 LINUX_S_ISDIR(inode->i_mode))) {
1966 #ifdef WORDS_BIGENDIAN
1967 __u32 tmp_block[EXT2_N_BLOCKS];
1969 for (i = 0; i < EXT2_N_BLOCKS; i++)
1970 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1973 ehp = inode->i_block;
1975 if ((ext2fs_extent_header_verify(ehp,
1976 sizeof(inode->i_block)) == 0) &&
1977 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1978 inode->i_flags |= EXT4_EXTENTS_FL;
1979 #ifdef WORDS_BIGENDIAN
1980 memcpy(inode->i_block, tmp_block,
1981 sizeof(inode->i_block));
1983 e2fsck_write_inode(ctx, ino, inode, "pass1");
1988 if (ino == EXT2_BAD_INO) {
1989 struct process_block_struct pb;
1991 if ((failed_csum || inode->i_mode || inode->i_uid ||
1992 inode->i_gid || inode->i_links_count ||
1993 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1994 inode->i_file_acl) &&
1995 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1996 memset(inode, 0, sizeof(struct ext2_inode));
1997 e2fsck_write_inode(ctx, ino, inode,
2002 e2fsck_pass1_block_map_r_lock(ctx);
2003 pctx.errcode = ext2fs_copy_bitmap(ctx->global_ctx ?
2004 ctx->global_ctx->block_found_map :
2005 ctx->block_found_map, &pb.fs_meta_blocks);
2006 e2fsck_pass1_block_map_r_unlock(ctx);
2009 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
2010 ctx->flags |= E2F_FLAG_ABORT;
2011 e2fsck_pass1_check_unlock(ctx);
2014 pb.ino = EXT2_BAD_INO;
2015 pb.num_blocks = pb.last_block = 0;
2016 pb.last_db_block = -1;
2017 pb.num_illegal_blocks = 0;
2018 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
2019 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
2023 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
2024 block_buf, process_bad_block, &pb);
2025 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
2027 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
2028 ctx->flags |= E2F_FLAG_ABORT;
2029 e2fsck_pass1_check_unlock(ctx);
2033 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
2034 ctx->flags |= E2F_FLAG_ABORT;
2035 e2fsck_pass1_check_unlock(ctx);
2038 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2039 clear_problem_context(&pctx);
2040 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2041 e2fsck_pass1_check_unlock(ctx);
2043 } else if (ino == EXT2_ROOT_INO) {
2045 * Make sure the root inode is a directory; if
2046 * not, offer to clear it. It will be
2047 * regenerated in pass #3.
2049 if (!LINUX_S_ISDIR(inode->i_mode)) {
2050 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
2054 * If dtime is set, offer to clear it. mke2fs
2055 * version 0.2b created filesystems with the
2056 * dtime field set for the root and lost+found
2057 * directories. We won't worry about
2058 * /lost+found, since that can be regenerated
2059 * easily. But we will fix the root directory
2060 * as a special case.
2062 if (inode->i_dtime && inode->i_links_count) {
2063 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
2065 e2fsck_write_inode(ctx, ino, inode,
2070 } else if (ino == EXT2_JOURNAL_INO) {
2071 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2072 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
2073 if (!LINUX_S_ISREG(inode->i_mode) &&
2074 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
2076 inode->i_mode = LINUX_S_IFREG;
2077 e2fsck_write_inode(ctx, ino, inode,
2081 check_blocks(ctx, &pctx, block_buf, NULL);
2082 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2083 e2fsck_pass1_check_unlock(ctx);
2086 if ((inode->i_links_count ||
2087 inode->i_blocks || inode->i_block[0]) &&
2088 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
2090 memset(inode, 0, inode_size);
2091 ext2fs_icount_store(ctx->inode_link_info,
2093 e2fsck_write_inode_full(ctx, ino, inode,
2094 inode_size, "pass1");
2097 } else if (quota_inum_is_reserved(fs, ino)) {
2098 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2099 if (ext2fs_has_feature_quota(fs->super) &&
2100 quota_inum_is_super(fs->super, ino)) {
2101 if (!LINUX_S_ISREG(inode->i_mode) &&
2102 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
2104 inode->i_mode = LINUX_S_IFREG;
2105 e2fsck_write_inode(ctx, ino, inode,
2109 check_blocks(ctx, &pctx, block_buf, NULL);
2110 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2111 e2fsck_pass1_check_unlock(ctx);
2114 if ((inode->i_links_count ||
2115 inode->i_blocks || inode->i_block[0]) &&
2116 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
2118 memset(inode, 0, inode_size);
2119 ext2fs_icount_store(ctx->inode_link_info,
2121 e2fsck_write_inode_full(ctx, ino, inode,
2122 inode_size, "pass1");
2125 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
2126 problem_t problem = 0;
2128 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2129 if (ino == EXT2_BOOT_LOADER_INO) {
2130 if (LINUX_S_ISDIR(inode->i_mode))
2131 problem = PR_1_RESERVED_BAD_MODE;
2132 } else if (ino == EXT2_RESIZE_INO) {
2133 if (inode->i_mode &&
2134 !LINUX_S_ISREG(inode->i_mode))
2135 problem = PR_1_RESERVED_BAD_MODE;
2137 if (inode->i_mode != 0)
2138 problem = PR_1_RESERVED_BAD_MODE;
2141 if (fix_problem(ctx, problem, &pctx)) {
2143 e2fsck_write_inode(ctx, ino, inode,
2148 check_blocks(ctx, &pctx, block_buf, NULL);
2149 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2150 e2fsck_pass1_check_unlock(ctx);
2154 if (!inode->i_links_count) {
2155 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2156 e2fsck_pass1_check_unlock(ctx);
2160 * n.b. 0.3c ext2fs code didn't clear i_links_count for
2161 * deleted files. Oops.
2163 * Since all new ext2 implementations get this right,
2164 * we now assume that the case of non-zero
2165 * i_links_count and non-zero dtime means that we
2166 * should keep the file, not delete it.
2169 if (inode->i_dtime) {
2170 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
2172 e2fsck_write_inode(ctx, ino, inode, "pass1");
2177 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2178 switch (fs->super->s_creator_os) {
2180 frag = inode->osd2.hurd2.h_i_frag;
2181 fsize = inode->osd2.hurd2.h_i_fsize;
2187 if (inode->i_faddr || frag || fsize ||
2188 (!ext2fs_has_feature_largedir(fs->super) &&
2189 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
2190 mark_inode_bad(ctx, ino);
2191 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2192 !ext2fs_has_feature_64bit(fs->super) &&
2193 inode->osd2.linux2.l_i_file_acl_high != 0)
2194 mark_inode_bad(ctx, ino);
2195 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2196 !ext2fs_has_feature_huge_file(fs->super) &&
2197 (inode->osd2.linux2.l_i_blocks_hi != 0))
2198 mark_inode_bad(ctx, ino);
2199 if (inode->i_flags & EXT2_IMAGIC_FL) {
2201 if (!ctx->inode_imagic_map)
2202 alloc_imagic_map(ctx);
2203 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
2206 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
2207 inode->i_flags &= ~EXT2_IMAGIC_FL;
2208 e2fsck_write_inode(ctx, ino,
2215 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
2216 check_is_really_dir(ctx, &pctx, block_buf);
2219 * ext2fs_inode_has_valid_blocks2 does not actually look
2220 * at i_block[] values, so not endian-sensitive here.
2222 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
2223 LINUX_S_ISLNK(inode->i_mode) &&
2224 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
2225 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
2226 inode->i_flags &= ~EXT4_EXTENTS_FL;
2227 e2fsck_write_inode(ctx, ino, inode, "pass1");
2231 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
2232 add_encrypted_file(ctx, &pctx) < 0)
2235 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
2236 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
2238 if (LINUX_S_ISDIR(inode->i_mode)) {
2239 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
2240 e2fsck_add_dir_info(ctx, ino, 0);
2241 ctx->fs_directory_count++;
2242 if (inode->i_flags & EXT4_CASEFOLD_FL)
2243 add_casefolded_dir(ctx, ino);
2244 } else if (LINUX_S_ISREG (inode->i_mode)) {
2245 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
2246 ctx->fs_regular_count++;
2247 } else if (LINUX_S_ISCHR (inode->i_mode) &&
2248 e2fsck_pass1_check_device_inode(fs, inode)) {
2249 check_extents_inlinedata(ctx, &pctx);
2250 check_immutable(ctx, &pctx);
2251 check_size(ctx, &pctx);
2252 ctx->fs_chardev_count++;
2253 } else if (LINUX_S_ISBLK (inode->i_mode) &&
2254 e2fsck_pass1_check_device_inode(fs, inode)) {
2255 check_extents_inlinedata(ctx, &pctx);
2256 check_immutable(ctx, &pctx);
2257 check_size(ctx, &pctx);
2258 ctx->fs_blockdev_count++;
2259 } else if (LINUX_S_ISLNK (inode->i_mode) &&
2260 e2fsck_pass1_check_symlink(fs, ino, inode,
2262 check_immutable(ctx, &pctx);
2263 ctx->fs_symlinks_count++;
2264 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
2265 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2266 e2fsck_pass1_check_unlock(ctx);
2268 } else if (ext2fs_is_fast_symlink(inode)) {
2269 ctx->fs_fast_symlinks_count++;
2270 check_blocks(ctx, &pctx, block_buf,
2272 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2273 e2fsck_pass1_check_unlock(ctx);
2277 else if (LINUX_S_ISFIFO (inode->i_mode) &&
2278 e2fsck_pass1_check_device_inode(fs, inode)) {
2279 check_extents_inlinedata(ctx, &pctx);
2280 check_immutable(ctx, &pctx);
2281 check_size(ctx, &pctx);
2282 ctx->fs_fifo_count++;
2283 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
2284 e2fsck_pass1_check_device_inode(fs, inode)) {
2285 check_extents_inlinedata(ctx, &pctx);
2286 check_immutable(ctx, &pctx);
2287 check_size(ctx, &pctx);
2288 ctx->fs_sockets_count++;
2290 mark_inode_bad(ctx, ino);
2291 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2292 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
2293 if (inode->i_block[EXT2_IND_BLOCK])
2294 ctx->fs_ind_count++;
2295 if (inode->i_block[EXT2_DIND_BLOCK])
2296 ctx->fs_dind_count++;
2297 if (inode->i_block[EXT2_TIND_BLOCK])
2298 ctx->fs_tind_count++;
2300 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2301 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
2302 (inode->i_block[EXT2_IND_BLOCK] ||
2303 inode->i_block[EXT2_DIND_BLOCK] ||
2304 inode->i_block[EXT2_TIND_BLOCK] ||
2305 ext2fs_file_acl_block(fs, inode))) {
2306 struct process_inode_block *itp;
2308 itp = &inodes_to_process[process_inode_count];
2310 itp->ea_ibody_quota = ea_ibody_quota;
2311 if (inode_size < sizeof(struct ext2_inode_large))
2312 memcpy(&itp->inode, inode, inode_size);
2314 memcpy(&itp->inode, inode, sizeof(itp->inode));
2315 process_inode_count++;
2317 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2319 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2321 if (e2fsck_should_abort(ctx)) {
2322 e2fsck_pass1_check_unlock(ctx);
2326 if (process_inode_count >= ctx->process_inode_size) {
2327 process_inodes(ctx, block_buf, inodes_to_process,
2328 &process_inode_count);
2330 if (e2fsck_should_abort(ctx)) {
2331 e2fsck_pass1_check_unlock(ctx);
2335 e2fsck_pass1_check_unlock(ctx);
2337 process_inodes(ctx, block_buf, inodes_to_process,
2338 &process_inode_count);
2339 ext2fs_close_inode_scan(scan);
2342 if (ctx->ea_block_quota_blocks) {
2343 ea_refcount_free(ctx->ea_block_quota_blocks);
2344 ctx->ea_block_quota_blocks = 0;
2347 if (ctx->ea_block_quota_inodes) {
2348 ea_refcount_free(ctx->ea_block_quota_inodes);
2349 ctx->ea_block_quota_inodes = 0;
2352 /* We don't need the encryption policy => ID map any more */
2353 destroy_encryption_policy_map(ctx);
2355 if (ctx->flags & E2F_FLAG_RESTART) {
2357 * Only the master copy of the superblock and block
2358 * group descriptors are going to be written during a
2359 * restart, so set the superblock to be used to be the
2360 * master superblock.
2362 ctx->use_superblock = 0;
2366 if (ctx->large_dirs && !ext2fs_has_feature_largedir(ctx->fs->super)) {
2367 ext2_filsys fs = ctx->fs;
2369 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2370 ext2fs_set_feature_largedir(fs->super);
2371 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2372 ext2fs_mark_super_dirty(fs);
2374 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2375 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2376 ext2fs_update_dynamic_rev(fs);
2377 ext2fs_mark_super_dirty(fs);
2381 ctx->flags |= E2F_FLAG_ALLOC_OK;
2382 ext2fs_free_mem(&inodes_to_process);
2384 e2fsck_use_inode_shortcuts(ctx, 0);
2385 ext2fs_free_mem(&inodes_to_process);
2386 inodes_to_process = 0;
2389 ext2fs_close_inode_scan(scan);
2391 ext2fs_free_mem(&block_buf);
2393 ext2fs_free_mem(&inode);
2396 * The l+f inode may have been cleared, so zap it now and
2397 * later passes will recalculate it if necessary
2399 ctx->lost_and_found = 0;
2401 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2402 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2404 ctx->invalid_bitmaps++;
2408 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2409 ext2fs_generic_bitmap *dest)
2413 ret = ext2fs_copy_bitmap(*src, dest);
2422 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2425 ext2fs_free_generic_bmap(*bitmap);
2431 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2432 ext2fs_generic_bitmap *dest)
2437 if (*dest == NULL) {
2441 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2451 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2456 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2457 dest->inode_map = NULL;
2458 dest->block_map = NULL;
2459 dest->badblocks = NULL;
2461 dest->dblist->fs = dest;
2462 if (src->block_map) {
2463 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2468 if (src->inode_map) {
2469 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2475 if (src->badblocks) {
2476 retval = ext2fs_badblocks_copy(src->badblocks,
2482 /* disable it for now */
2483 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2484 retval = ext2fs_open_channel(dest, src_context->io_options,
2485 src_context->io_manager,
2486 src_context->openfs_flags,
2487 src->io->block_size);
2491 /* Block size might not be default */
2492 io_channel_set_blksize(dest->io, src->io->block_size);
2493 ehandler_init(dest->io);
2495 assert(dest->io->magic == src->io->magic);
2496 assert(dest->io->manager == src->io->manager);
2497 assert(strcmp(dest->io->name, src->io->name) == 0);
2498 assert(dest->io->block_size == src->io->block_size);
2499 assert(dest->io->read_error == src->io->read_error);
2500 assert(dest->io->write_error == src->io->write_error);
2501 assert(dest->io->refcount == src->io->refcount);
2502 assert(dest->io->flags == src->io->flags);
2503 assert(dest->io->app_data == dest);
2504 assert(src->io->app_data == src);
2505 assert(dest->io->align == src->io->align);
2507 /* The data should be written to disk immediately */
2508 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2509 /* icache will be rebuilt if needed, so do not copy from @src */
2514 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2516 struct ext2_inode_cache *icache = dest->icache;
2517 errcode_t retval = 0;
2519 io_channel dest_image_io;
2520 ext2fs_inode_bitmap inode_map;
2521 ext2fs_block_bitmap block_map;
2522 ext2_badblocks_list badblocks;
2525 e2fsck_t dest_ctx = dest->priv_data;
2528 dest_image_io = dest->image_io;
2529 inode_map = dest->inode_map;
2530 block_map = dest->block_map;
2531 badblocks = dest->badblocks;
2532 dblist = dest->dblist;
2533 flags = dest->flags;
2535 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2537 dest->image_io = dest_image_io;
2538 dest->icache = icache;
2539 dest->inode_map = inode_map;
2540 dest->block_map = block_map;
2541 dest->badblocks = badblocks;
2542 dest->dblist = dblist;
2543 dest->priv_data = dest_ctx;
2545 dest->dblist->fs = dest;
2546 dest->flags = src->flags | flags;
2547 if (!(src->flags & EXT2_FLAG_VALID) || !(flags & EXT2_FLAG_VALID))
2548 ext2fs_unmark_valid(dest);
2551 ext2fs_free_inode_cache(src->icache);
2555 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2560 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2567 retval = ext2fs_merge_dblist(src->dblist,
2572 dest->dblist = src->dblist;
2573 dest->dblist->fs = dest;
2578 if (src->badblocks) {
2579 if (dest->badblocks == NULL)
2580 retval = ext2fs_badblocks_copy(src->badblocks,
2583 retval = ext2fs_badblocks_merge(src->badblocks,
2587 io_channel_close(src->io);
2589 ext2fs_free_generic_bmap(src->inode_map);
2591 ext2fs_free_generic_bmap(src->block_map);
2593 ext2fs_badblocks_list_free(src->badblocks);
2595 ext2fs_free_dblist(src->dblist);
2600 static void e2fsck_pass1_copy_invalid_bitmaps(e2fsck_t global_ctx,
2601 e2fsck_t thread_ctx)
2604 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2605 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2606 dgrp_t total = grp_end - grp_start;
2608 thread_ctx->invalid_inode_bitmap_flag =
2609 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2610 "invalid_inode_bitmap");
2611 thread_ctx->invalid_block_bitmap_flag =
2612 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2613 "invalid_block_bitmap");
2614 thread_ctx->invalid_inode_table_flag =
2615 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2616 "invalid_inode_table");
2618 memcpy(thread_ctx->invalid_block_bitmap_flag,
2619 &global_ctx->invalid_block_bitmap_flag[grp_start],
2620 total * sizeof(int));
2621 memcpy(thread_ctx->invalid_inode_bitmap_flag,
2622 &global_ctx->invalid_inode_bitmap_flag[grp_start],
2623 total * sizeof(int));
2624 memcpy(thread_ctx->invalid_inode_table_flag,
2625 &global_ctx->invalid_inode_table_flag[grp_start],
2626 total * sizeof(int));
2628 thread_ctx->invalid_bitmaps = 0;
2629 for (i = grp_start, j = 0; i < grp_end; i++, j++) {
2630 if (thread_ctx->invalid_block_bitmap_flag[j])
2631 thread_ctx->invalid_bitmaps++;
2632 if (thread_ctx->invalid_inode_bitmap_flag[j])
2633 thread_ctx->invalid_bitmaps++;
2634 if (thread_ctx->invalid_inode_table_flag[j])
2635 thread_ctx->invalid_bitmaps++;
2639 static void e2fsck_pass1_merge_invalid_bitmaps(e2fsck_t global_ctx,
2640 e2fsck_t thread_ctx)
2643 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2644 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2645 dgrp_t total = grp_end - grp_start;
2647 memcpy(&global_ctx->invalid_block_bitmap_flag[grp_start],
2648 thread_ctx->invalid_block_bitmap_flag, total * sizeof(int));
2649 memcpy(&global_ctx->invalid_inode_bitmap_flag[grp_start],
2650 thread_ctx->invalid_inode_bitmap_flag, total * sizeof(int));
2651 memcpy(&global_ctx->invalid_inode_table_flag[grp_start],
2652 thread_ctx->invalid_inode_table_flag, total * sizeof(int));
2653 global_ctx->invalid_bitmaps += thread_ctx->invalid_bitmaps;
2656 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2657 int thread_index, int num_threads,
2658 dgrp_t average_group)
2661 e2fsck_t thread_context;
2662 ext2_filsys thread_fs;
2663 ext2_filsys global_fs = global_ctx->fs;
2664 struct e2fsck_thread *tinfo;
2666 assert(global_ctx->inode_used_map == NULL);
2667 assert(global_ctx->inode_dir_map == NULL);
2668 assert(global_ctx->inode_bb_map == NULL);
2669 assert(global_ctx->inode_imagic_map == NULL);
2670 assert(global_ctx->inode_reg_map == NULL);
2671 assert(global_ctx->inodes_to_rebuild == NULL);
2673 assert(global_ctx->block_found_map != NULL);
2674 assert(global_ctx->block_metadata_map != NULL);
2675 assert(global_ctx->block_dup_map != NULL);
2676 assert(global_ctx->block_ea_map == NULL);
2677 assert(global_ctx->fs->dblist == NULL);
2679 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2681 com_err(global_ctx->program_name, retval, "while allocating memory");
2684 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2685 thread_context->block_dup_map = NULL;
2687 retval = e2fsck_allocate_block_bitmap(global_ctx->fs,
2688 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
2689 "block_found_map", &thread_context->block_found_map);
2693 thread_context->global_ctx = global_ctx;
2694 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2696 com_err(global_ctx->program_name, retval, "while allocating memory");
2700 io_channel_flush_cleanup(global_fs->io);
2701 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2703 com_err(global_ctx->program_name, retval, "while copying fs");
2706 thread_fs->priv_data = thread_context;
2708 thread_context->thread_info.et_thread_index = thread_index;
2709 set_up_logging(thread_context);
2711 tinfo = &thread_context->thread_info;
2712 tinfo->et_group_start = average_group * thread_index;
2713 if (thread_index == global_fs->fs_num_threads - 1)
2714 tinfo->et_group_end = thread_fs->group_desc_count;
2716 tinfo->et_group_end = average_group * (thread_index + 1);
2717 tinfo->et_group_next = tinfo->et_group_start;
2718 tinfo->et_inode_number = 0;
2719 tinfo->et_log_buf[0] = '\0';
2720 tinfo->et_log_length = 0;
2721 if (thread_context->options & E2F_OPT_MULTITHREAD)
2722 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2723 tinfo->et_group_start, tinfo->et_group_end);
2724 thread_context->fs = thread_fs;
2725 retval = quota_init_context(&thread_context->qctx, thread_fs, 0);
2727 com_err(global_ctx->program_name, retval,
2728 "while init quota context");
2731 *thread_ctx = thread_context;
2732 e2fsck_pass1_copy_invalid_bitmaps(global_ctx, thread_context);
2735 ext2fs_free_mem(&thread_fs);
2737 if (thread_context->block_found_map)
2738 ext2fs_free_mem(&thread_context->block_found_map);
2739 ext2fs_free_mem(&thread_context);
2743 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2745 if (thread_ctx->dir_info == NULL)
2748 if (global_ctx->dir_info == NULL) {
2749 global_ctx->dir_info = thread_ctx->dir_info;
2750 thread_ctx->dir_info = NULL;
2754 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2755 global_ctx->dir_info);
2758 static void e2fsck_pass1_merge_dx_dir(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2760 if (thread_ctx->dx_dir_info == NULL)
2763 if (global_ctx->dx_dir_info == NULL) {
2764 global_ctx->dx_dir_info = thread_ctx->dx_dir_info;
2765 global_ctx->dx_dir_info_size = thread_ctx->dx_dir_info_size;
2766 global_ctx->dx_dir_info_count = thread_ctx->dx_dir_info_count;
2767 thread_ctx->dx_dir_info = NULL;
2771 e2fsck_merge_dx_dir(global_ctx, thread_ctx);
2774 static inline errcode_t
2775 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2776 ext2_icount_t *src_icount)
2779 if (*dest_icount == NULL) {
2780 *dest_icount = *src_icount;
2785 ret = ext2fs_icount_merge(*src_icount,
2795 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2799 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2800 &thread_ctx->inode_count);
2803 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2804 &thread_ctx->inode_link_info);
2809 static errcode_t e2fsck_pass1_merge_dirs_to_hash(e2fsck_t global_ctx,
2810 e2fsck_t thread_ctx)
2812 errcode_t retval = 0;
2814 if (!thread_ctx->dirs_to_hash)
2817 if (!global_ctx->dirs_to_hash)
2818 retval = ext2fs_badblocks_copy(thread_ctx->dirs_to_hash,
2819 &global_ctx->dirs_to_hash);
2821 retval = ext2fs_badblocks_merge(thread_ctx->dirs_to_hash,
2822 global_ctx->dirs_to_hash);
2827 static errcode_t e2fsck_pass1_merge_ea_inode_refs(e2fsck_t global_ctx,
2828 e2fsck_t thread_ctx)
2834 if (!thread_ctx->ea_inode_refs)
2837 if (!global_ctx->ea_inode_refs) {
2838 global_ctx->ea_inode_refs = thread_ctx->ea_inode_refs;
2839 thread_ctx->ea_inode_refs = NULL;
2843 ea_refcount_intr_begin(thread_ctx->ea_inode_refs);
2845 if ((blk = ea_refcount_intr_next(thread_ctx->ea_inode_refs,
2848 if (!global_ctx->block_ea_map ||
2849 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2851 retval = ea_refcount_store(global_ctx->ea_inode_refs,
2861 static ea_value_t ea_refcount_usage(e2fsck_t ctx, blk64_t blk,
2864 ea_value_t count_cur;
2865 ea_value_t count_extra = 0;
2866 ea_value_t count_orig;
2868 ea_refcount_fetch(ctx->refcount_orig, blk, &count_orig);
2869 ea_refcount_fetch(ctx->refcount, blk, &count_cur);
2870 /* most of time this is not needed */
2871 if (ctx->refcount_extra && count_cur == 0)
2872 ea_refcount_fetch(ctx->refcount_extra, blk, &count_extra);
2879 return count_orig + count_extra - count_cur;
2882 static errcode_t e2fsck_pass1_merge_ea_refcount(e2fsck_t global_ctx,
2883 e2fsck_t thread_ctx)
2887 errcode_t retval = 0;
2889 if (!thread_ctx->refcount)
2892 if (!global_ctx->refcount) {
2893 global_ctx->refcount = thread_ctx->refcount;
2894 thread_ctx->refcount = NULL;
2895 global_ctx->refcount_extra = thread_ctx->refcount;
2896 thread_ctx->refcount_extra = NULL;
2900 ea_refcount_intr_begin(thread_ctx->refcount);
2902 if ((blk = ea_refcount_intr_next(thread_ctx->refcount,
2906 * this EA has never seen before, so just store its
2907 * refcount and refcount_extra into global_ctx if needed.
2909 if (!global_ctx->block_ea_map ||
2910 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2914 retval = ea_refcount_store(global_ctx->refcount,
2919 if (count > 0 || !thread_ctx->refcount_extra)
2921 ea_refcount_fetch(thread_ctx->refcount_extra, blk,
2926 if (!global_ctx->refcount_extra) {
2927 retval = ea_refcount_create(0,
2928 &global_ctx->refcount_extra);
2932 retval = ea_refcount_store(global_ctx->refcount_extra,
2938 ea_value_t thread_usage;
2939 ea_value_t global_usage;
2942 thread_usage = ea_refcount_usage(thread_ctx,
2944 global_usage = ea_refcount_usage(global_ctx,
2946 if (thread_usage + global_usage <= orig) {
2947 new = orig - thread_usage - global_usage;
2948 retval = ea_refcount_store(global_ctx->refcount,
2954 /* update it is as zero */
2955 retval = ea_refcount_store(global_ctx->refcount,
2959 /* Ooops, this EA was referenced more than it stated */
2960 if (!global_ctx->refcount_extra) {
2961 retval = ea_refcount_create(0,
2962 &global_ctx->refcount_extra);
2966 new = global_usage + thread_usage - orig;
2967 retval = ea_refcount_store(global_ctx->refcount_extra,
2977 static errcode_t e2fsck_pass1_merge_context(e2fsck_t global_ctx,
2978 e2fsck_t thread_ctx)
2980 ext2_filsys global_fs = global_ctx->fs;
2984 global_ctx->fs_directory_count += thread_ctx->fs_directory_count;
2985 global_ctx->fs_regular_count += thread_ctx->fs_regular_count;
2986 global_ctx->fs_blockdev_count += thread_ctx->fs_blockdev_count;
2987 global_ctx->fs_chardev_count += thread_ctx->fs_chardev_count;
2988 global_ctx->fs_links_count += thread_ctx->fs_links_count;
2989 global_ctx->fs_symlinks_count += thread_ctx->fs_symlinks_count;
2990 global_ctx->fs_fast_symlinks_count += thread_ctx->fs_fast_symlinks_count;
2991 global_ctx->fs_fifo_count += thread_ctx->fs_fifo_count;
2992 global_ctx->fs_total_count += thread_ctx->fs_total_count;
2993 global_ctx->fs_badblocks_count += thread_ctx->fs_badblocks_count;
2994 global_ctx->fs_sockets_count += thread_ctx->fs_sockets_count;
2995 global_ctx->fs_ind_count += thread_ctx->fs_ind_count;
2996 global_ctx->fs_dind_count += thread_ctx->fs_dind_count;
2997 global_ctx->fs_tind_count += thread_ctx->fs_tind_count;
2998 global_ctx->fs_fragmented += thread_ctx->fs_fragmented;
2999 global_ctx->fs_fragmented_dir += thread_ctx->fs_fragmented_dir;
3000 global_ctx->large_files += thread_ctx->large_files;
3001 /* threads might enable E2F_OPT_YES */
3002 global_ctx->options |= thread_ctx->options;
3003 global_ctx->flags |= thread_ctx->flags;
3005 * The l+f inode may have been cleared, so zap it now and
3006 * later passes will recalculate it if necessary
3008 global_ctx->lost_and_found = 0;
3009 /* merge extent depth count */
3010 for (i = 0; i < MAX_EXTENT_DEPTH_COUNT; i++)
3011 global_ctx->extent_depth_count[i] +=
3012 thread_ctx->extent_depth_count[i];
3014 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
3015 e2fsck_pass1_merge_dx_dir(global_ctx, thread_ctx);
3017 retval = e2fsck_pass1_merge_fs(global_ctx->fs, thread_ctx->fs);
3019 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
3022 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
3024 com_err(global_ctx->program_name, 0,
3025 _("while merging icounts\n"));
3029 retval = e2fsck_pass1_merge_dirs_to_hash(global_ctx, thread_ctx);
3031 com_err(global_ctx->program_name, 0,
3032 _("while merging dirs to hash\n"));
3036 e2fsck_pass1_merge_ea_inode_refs(global_ctx, thread_ctx);
3037 e2fsck_pass1_merge_ea_refcount(global_ctx, thread_ctx);
3038 retval = quota_merge_and_update_usage(global_ctx->qctx,
3043 e2fsck_pass1_merge_invalid_bitmaps(global_ctx, thread_ctx);
3045 retval = e2fsck_pass1_merge_bitmap(global_fs,
3046 &thread_ctx->inode_used_map,
3047 &global_ctx->inode_used_map);
3051 retval = e2fsck_pass1_merge_bitmap(global_fs,
3052 &thread_ctx->inode_bad_map,
3053 &global_ctx->inode_bad_map);
3056 retval = e2fsck_pass1_merge_bitmap(global_fs,
3057 &thread_ctx->inode_dir_map,
3058 &global_ctx->inode_dir_map);
3061 retval = e2fsck_pass1_merge_bitmap(global_fs,
3062 &thread_ctx->inode_bb_map,
3063 &global_ctx->inode_bb_map);
3066 retval = e2fsck_pass1_merge_bitmap(global_fs,
3067 &thread_ctx->inode_imagic_map,
3068 &global_ctx->inode_imagic_map);
3071 retval = e2fsck_pass1_merge_bitmap(global_fs,
3072 &thread_ctx->inode_reg_map,
3073 &global_ctx->inode_reg_map);
3076 retval = e2fsck_pass1_merge_bitmap(global_fs,
3077 &thread_ctx->inodes_to_rebuild,
3078 &global_ctx->inodes_to_rebuild);
3081 retval = e2fsck_pass1_merge_bitmap(global_fs,
3082 &thread_ctx->block_ea_map,
3083 &global_ctx->block_ea_map);
3087 if (ext2fs_has_feature_shared_blocks(global_fs->super) &&
3088 !(global_ctx->options & E2F_OPT_UNSHARE_BLOCKS))
3091 * This need be done after merging block_ea_map
3092 * because ea block might be shared, we need exclude
3093 * them from dup blocks.
3095 e2fsck_pass1_block_map_w_lock(thread_ctx);
3096 retval = ext2fs_merge_bitmap(thread_ctx->block_found_map,
3097 global_ctx->block_found_map,
3098 global_ctx->block_dup_map,
3099 global_ctx->block_ea_map);
3100 e2fsck_pass1_block_map_w_unlock(thread_ctx);
3101 if (retval == EEXIST)
3102 global_ctx->flags |= E2F_FLAG_DUP_BLOCK;
3107 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
3111 retval = e2fsck_pass1_merge_context(global_ctx, thread_ctx);
3112 ext2fs_free_mem(&thread_ctx->fs);
3113 if (thread_ctx->logf)
3114 fclose(thread_ctx->logf);
3115 if (thread_ctx->problem_logf) {
3116 fputs("</problem_log>\n", thread_ctx->problem_logf);
3117 fclose(thread_ctx->problem_logf);
3119 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
3120 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
3121 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
3122 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
3123 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
3124 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
3125 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
3126 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
3127 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
3128 if (thread_ctx->refcount)
3129 ea_refcount_free(thread_ctx->refcount);
3130 if (thread_ctx->refcount_extra)
3131 ea_refcount_free(thread_ctx->refcount_extra);
3132 if (thread_ctx->ea_inode_refs)
3133 ea_refcount_free(thread_ctx->ea_inode_refs);
3134 if (thread_ctx->refcount_orig)
3135 ea_refcount_free(thread_ctx->refcount_orig);
3136 e2fsck_free_dir_info(thread_ctx);
3137 ext2fs_free_icount(thread_ctx->inode_count);
3138 ext2fs_free_icount(thread_ctx->inode_link_info);
3139 if (thread_ctx->dirs_to_hash)
3140 ext2fs_badblocks_list_free(thread_ctx->dirs_to_hash);
3141 quota_release_context(&thread_ctx->qctx);
3142 ext2fs_free_mem(&thread_ctx->invalid_block_bitmap_flag);
3143 ext2fs_free_mem(&thread_ctx->invalid_inode_bitmap_flag);
3144 ext2fs_free_mem(&thread_ctx->invalid_inode_table_flag);
3145 ext2fs_free_mem(&thread_ctx);
3150 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
3151 e2fsck_t global_ctx)
3156 struct e2fsck_thread_info *pinfo;
3157 int num_threads = global_ctx->fs_num_threads;
3159 /* merge invalid bitmaps will recalculate it */
3160 global_ctx->invalid_bitmaps = 0;
3161 for (i = 0; i < num_threads; i++) {
3164 if (!pinfo->eti_started)
3167 rc = pthread_join(pinfo->eti_thread_id, NULL);
3169 com_err(global_ctx->program_name, rc,
3170 _("while joining thread\n"));
3174 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
3176 com_err(global_ctx->program_name, rc,
3177 _("while joining pass1 thread\n"));
3187 static void *e2fsck_pass1_thread(void *arg)
3189 struct e2fsck_thread_info *info = arg;
3190 e2fsck_t thread_ctx = info->eti_thread_ctx;
3191 #ifdef DEBUG_THREADS
3192 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
3195 #ifdef DEBUG_THREADS
3196 pthread_mutex_lock(&thread_debug->etd_mutex);
3197 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
3198 pthread_cond_wait(&thread_debug->etd_cond,
3199 &thread_debug->etd_mutex);
3201 pthread_mutex_unlock(&thread_debug->etd_mutex);
3204 #ifdef HAVE_SETJMP_H
3206 * When fatal_error() happens, jump to here. The thread
3207 * context's flags will be saved, but its abort_loc will
3208 * be overwritten by original jump buffer for the later
3211 if (setjmp(thread_ctx->abort_loc)) {
3212 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
3215 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
3218 e2fsck_pass1_run(thread_ctx);
3221 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
3223 _("Scanned group range [%lu, %lu), inodes %lu\n"),
3224 thread_ctx->thread_info.et_group_start,
3225 thread_ctx->thread_info.et_group_end,
3226 thread_ctx->thread_info.et_inode_number);
3228 #ifdef DEBUG_THREADS
3229 pthread_mutex_lock(&thread_debug->etd_mutex);
3230 thread_debug->etd_finished_threads++;
3231 pthread_cond_broadcast(&thread_debug->etd_cond);
3232 pthread_mutex_unlock(&thread_debug->etd_mutex);
3238 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
3239 e2fsck_t global_ctx)
3241 struct e2fsck_thread_info *infos;
3242 pthread_attr_t attr;
3245 struct e2fsck_thread_info *tmp_pinfo;
3247 e2fsck_t thread_ctx;
3248 dgrp_t average_group;
3249 int num_threads = global_ctx->fs_num_threads;
3250 #ifdef DEBUG_THREADS
3251 struct e2fsck_thread_debug thread_debug =
3252 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
3254 thread_debug.etd_finished_threads = 0;
3257 retval = pthread_attr_init(&attr);
3259 com_err(global_ctx->program_name, retval,
3260 _("while setting pthread attribute\n"));
3264 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
3265 if (infos == NULL) {
3267 com_err(global_ctx->program_name, retval,
3268 _("while allocating memory for threads\n"));
3269 pthread_attr_destroy(&attr);
3273 average_group = ext2fs_get_avg_group(global_ctx->fs);
3274 for (i = 0; i < num_threads; i++) {
3275 tmp_pinfo = &infos[i];
3276 tmp_pinfo->eti_thread_index = i;
3277 #ifdef DEBUG_THREADS
3278 tmp_pinfo->eti_debug = &thread_debug;
3280 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
3284 com_err(global_ctx->program_name, retval,
3285 _("while preparing pass1 thread\n"));
3288 tmp_pinfo->eti_thread_ctx = thread_ctx;
3290 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
3291 &e2fsck_pass1_thread, tmp_pinfo);
3293 com_err(global_ctx->program_name, retval,
3294 _("while creating thread\n"));
3295 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
3299 tmp_pinfo->eti_started = 1;
3302 /* destroy the thread attribute object, since it is no longer needed */
3303 ret = pthread_attr_destroy(&attr);
3305 com_err(global_ctx->program_name, ret,
3306 _("while destroying thread attribute\n"));
3312 e2fsck_pass1_threads_join(infos, global_ctx);
3319 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
3321 struct e2fsck_thread_info *infos = NULL;
3324 retval = e2fsck_pass1_threads_start(&infos, global_ctx);
3326 com_err(global_ctx->program_name, retval,
3327 _("while starting pass1 threads\n"));
3331 retval = e2fsck_pass1_threads_join(infos, global_ctx);
3333 com_err(global_ctx->program_name, retval,
3334 _("while joining pass1 threads\n"));
3339 global_ctx->flags |= E2F_FLAG_ABORT;
3344 void e2fsck_pass1(e2fsck_t ctx)
3347 int need_single = 1;
3349 retval = e2fsck_pass1_prepare(ctx);
3353 if (ctx->fs_num_threads > 1 ||
3354 ctx->options & E2F_OPT_MULTITHREAD) {
3356 e2fsck_pass1_multithread(ctx);
3358 /* No lock is needed at this time */
3359 ctx->fs_need_locking = 0;
3362 e2fsck_pass1_run(ctx);
3363 e2fsck_pass1_post(ctx);
3366 #undef FINISH_INODE_LOOP
3369 * When the inode_scan routines call this callback at the end of the
3370 * glock group, call process_inodes.
3372 static errcode_t scan_callback(ext2_filsys fs,
3373 ext2_inode_scan scan EXT2FS_ATTR((unused)),
3374 dgrp_t group, void * priv_data)
3376 struct scan_callback_struct *scan_struct;
3378 struct e2fsck_thread *tinfo;
3380 scan_struct = (struct scan_callback_struct *) priv_data;
3381 ctx = scan_struct->ctx;
3383 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
3384 scan_struct->inodes_to_process,
3385 scan_struct->process_inode_count);
3388 if ((ctx->progress)(ctx, 1, group+1,
3389 ctx->fs->group_desc_count))
3390 return EXT2_ET_CANCEL_REQUESTED;
3393 if (ctx->global_ctx) {
3394 tinfo = &ctx->thread_info;
3395 tinfo->et_group_next++;
3396 if (ctx->options & E2F_OPT_DEBUG &&
3397 ctx->options & E2F_OPT_MULTITHREAD)
3398 log_out(ctx, _("group %d finished\n"),
3399 tinfo->et_group_next);
3400 if (tinfo->et_group_next >= tinfo->et_group_end)
3401 return EXT2_ET_SCAN_FINISHED;
3409 * Process the inodes in the "inodes to process" list.
3411 static void process_inodes(e2fsck_t ctx, char *block_buf,
3412 struct process_inode_block *inodes_to_process,
3413 int *process_inode_count)
3416 struct ext2_inode *old_stashed_inode;
3417 ext2_ino_t old_stashed_ino;
3418 const char *old_operation;
3420 struct problem_context pctx;
3423 printf("begin process_inodes: ");
3425 if (*process_inode_count == 0)
3427 old_operation = ehandler_operation(0);
3428 old_stashed_inode = ctx->stashed_inode;
3429 old_stashed_ino = ctx->stashed_ino;
3430 qsort(inodes_to_process, *process_inode_count,
3431 sizeof(struct process_inode_block), process_inode_cmp);
3432 clear_problem_context(&pctx);
3433 for (i=0; i < *process_inode_count; i++) {
3434 pctx.inode = ctx->stashed_inode =
3435 (struct ext2_inode *) &inodes_to_process[i].inode;
3436 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
3439 printf("%u ", pctx.ino);
3441 sprintf(buf, _("reading indirect blocks of inode %u"),
3443 ehandler_operation(buf);
3444 check_blocks(ctx, &pctx, block_buf,
3445 &inodes_to_process[i].ea_ibody_quota);
3446 if (e2fsck_should_abort(ctx))
3449 ctx->stashed_inode = old_stashed_inode;
3450 ctx->stashed_ino = old_stashed_ino;
3451 *process_inode_count = 0;
3453 printf("end process inodes\n");
3455 ehandler_operation(old_operation);
3458 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
3460 const struct process_inode_block *ib_a =
3461 (const struct process_inode_block *) a;
3462 const struct process_inode_block *ib_b =
3463 (const struct process_inode_block *) b;
3466 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
3467 ib_b->inode.i_block[EXT2_IND_BLOCK]);
3470 * We only call process_inodes() for non-extent
3471 * inodes, so it's OK to pass NULL to
3472 * ext2fs_file_acl_block() here.
3474 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
3475 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
3477 ret = ib_a->ino - ib_b->ino;
3482 * Mark an inode as being bad in some what
3484 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
3486 struct problem_context pctx;
3488 if (!ctx->inode_bad_map) {
3489 clear_problem_context(&pctx);
3491 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3492 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3493 "inode_bad_map", &ctx->inode_bad_map);
3496 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3497 /* Should never get here */
3498 ctx->flags |= E2F_FLAG_ABORT;
3502 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3505 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
3507 struct problem_context pctx;
3509 if (!ctx->casefolded_dirs) {
3510 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3514 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3515 if (pctx.errcode == 0)
3518 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3519 /* Should never get here */
3520 ctx->flags |= E2F_FLAG_ABORT;
3524 * This procedure will allocate the inode "bb" (badblock) map table
3526 static void alloc_bb_map(e2fsck_t ctx)
3528 struct problem_context pctx;
3530 clear_problem_context(&pctx);
3531 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3532 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3533 "inode_bb_map", &ctx->inode_bb_map);
3536 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3537 /* Should never get here */
3538 ctx->flags |= E2F_FLAG_ABORT;
3544 * This procedure will allocate the inode imagic table
3546 static void alloc_imagic_map(e2fsck_t ctx)
3548 struct problem_context pctx;
3550 clear_problem_context(&pctx);
3551 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3552 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3553 "inode_imagic_map", &ctx->inode_imagic_map);
3556 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3557 /* Should never get here */
3558 ctx->flags |= E2F_FLAG_ABORT;
3564 * Marks a block as in use, setting the dup_map if it's been set
3565 * already. Called by process_block and process_bad_block.
3567 * WARNING: Assumes checks have already been done to make sure block
3568 * is valid. This is true in both process_block and process_bad_block.
3570 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3572 struct problem_context pctx;
3573 e2fsck_t global_ctx = ctx->global_ctx ? ctx->global_ctx : ctx;
3575 clear_problem_context(&pctx);
3577 if (is_blocks_used(ctx, block, 1)) {
3578 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3579 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3582 ctx->flags |= E2F_FLAG_DUP_BLOCK;
3583 e2fsck_pass1_block_map_w_lock(ctx);
3584 ext2fs_fast_mark_block_bitmap2(global_ctx->block_dup_map, block);
3585 e2fsck_pass1_block_map_w_unlock(ctx);
3587 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3592 * When cluster size is greater than one block, it is caller's responsibility
3593 * to make sure block parameter starts at a cluster boundary.
3595 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3598 if (!is_blocks_used(ctx, block, num)) {
3599 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3603 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3604 mark_block_used(ctx, block + i);
3608 static errcode_t _INLINE_ e2fsck_write_ext_attr3(e2fsck_t ctx, blk64_t block,
3609 void *inbuf, ext2_ino_t inum)
3612 ext2_filsys fs = ctx->fs;
3614 e2fsck_pass1_fix_lock(ctx);
3615 retval = ext2fs_write_ext_attr3(fs, block, inbuf, inum);
3616 e2fsck_pass1_fix_unlock(ctx);
3621 * Adjust the extended attribute block's reference counts at the end
3622 * of pass 1, either by subtracting out references for EA blocks that
3623 * are still referenced in ctx->refcount, or by adding references for
3624 * EA blocks that had extra references as accounted for in
3625 * ctx->refcount_extra.
3627 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3628 char *block_buf, int adjust_sign)
3630 struct ext2_ext_attr_header *header;
3631 struct problem_context pctx;
3632 ext2_filsys fs = ctx->fs;
3637 clear_problem_context(&pctx);
3639 ea_refcount_intr_begin(refcount);
3641 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3644 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3647 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3650 header = (struct ext2_ext_attr_header *) block_buf;
3651 pctx.blkcount = header->h_refcount;
3652 should_be = header->h_refcount + adjust_sign * (int)count;
3653 pctx.num = should_be;
3654 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3655 header->h_refcount = should_be;
3656 pctx.errcode = e2fsck_write_ext_attr3(ctx, blk,
3660 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3669 * Handle processing the extended attribute blocks
3671 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3672 char *block_buf, struct ea_quota *ea_block_quota)
3674 ext2_filsys fs = ctx->fs;
3675 ext2_ino_t ino = pctx->ino;
3676 struct ext2_inode *inode = pctx->inode;
3679 struct ext2_ext_attr_header *header;
3680 struct ext2_ext_attr_entry *first, *entry;
3681 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3682 __u64 quota_inodes = 0;
3683 region_t region = 0;
3684 int failed_csum = 0;
3686 ea_block_quota->blocks = 0;
3687 ea_block_quota->inodes = 0;
3689 blk = ext2fs_file_acl_block(fs, inode);
3694 * If the Extended attribute flag isn't set, then a non-zero
3695 * file acl means that the inode is corrupted.
3697 * Or if the extended attribute block is an invalid block,
3698 * then the inode is also corrupted.
3700 if (!ext2fs_has_feature_xattr(fs->super) ||
3701 (blk < fs->super->s_first_data_block) ||
3702 (blk >= ext2fs_blocks_count(fs->super))) {
3703 mark_inode_bad(ctx, ino);
3707 /* If ea bitmap hasn't been allocated, create it */
3708 if (!ctx->block_ea_map) {
3709 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3710 _("ext attr block map"),
3711 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3712 &ctx->block_ea_map);
3713 if (pctx->errcode) {
3715 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3716 ctx->flags |= E2F_FLAG_ABORT;
3721 /* Create the EA refcount structure if necessary */
3722 if (!ctx->refcount) {
3723 pctx->errcode = ea_refcount_create(0,
3724 &ctx->refcount_orig);
3725 if (pctx->errcode) {
3727 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3728 ctx->flags |= E2F_FLAG_ABORT;
3732 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3733 if (pctx->errcode) {
3735 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3736 ctx->flags |= E2F_FLAG_ABORT;
3742 /* Debugging text */
3743 printf("Inode %u has EA block %u\n", ino, blk);
3746 /* Have we seen this EA block before? */
3747 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3748 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3749 ea_block_quota->inodes = 0;
3751 if (ctx->ea_block_quota_blocks) {
3752 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3755 ea_block_quota->blocks = quota_blocks;
3758 if (ctx->ea_block_quota_inodes)
3759 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3760 &ea_block_quota->inodes);
3762 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3764 /* Ooops, this EA was referenced more than it stated */
3765 if (!ctx->refcount_extra) {
3766 pctx->errcode = ea_refcount_create(0,
3767 &ctx->refcount_extra);
3768 if (pctx->errcode) {
3770 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3771 ctx->flags |= E2F_FLAG_ABORT;
3775 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3780 * OK, we haven't seen this EA block yet. So we need to
3784 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3785 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3788 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3791 if (pctx->errcode &&
3792 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3796 header = (struct ext2_ext_attr_header *) block_buf;
3797 pctx->blk = ext2fs_file_acl_block(fs, inode);
3798 if (((ctx->ext_attr_ver == 1) &&
3799 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3800 ((ctx->ext_attr_ver == 2) &&
3801 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3802 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3806 if (header->h_blocks != 1) {
3807 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3811 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3814 region = region_create(0, fs->blocksize);
3816 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3817 ctx->flags |= E2F_FLAG_ABORT;
3820 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3821 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3825 first = (struct ext2_ext_attr_entry *)(header+1);
3826 end = block_buf + fs->blocksize;
3828 while ((char *)entry < end && *(__u32 *)entry) {
3831 if (region_allocate(region, (char *)entry - (char *)header,
3832 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3833 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3837 if ((ctx->ext_attr_ver == 1 &&
3838 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3839 (ctx->ext_attr_ver == 2 &&
3840 entry->e_name_index == 0)) {
3841 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3845 if (entry->e_value_inum == 0) {
3846 if (entry->e_value_offs + entry->e_value_size >
3848 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3852 if (entry->e_value_size &&
3853 region_allocate(region, entry->e_value_offs,
3854 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3855 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3860 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3861 entry->e_value_offs);
3863 if (entry->e_hash != hash) {
3864 pctx->num = entry->e_hash;
3865 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3867 entry->e_hash = hash;
3871 blk64_t entry_quota_blocks;
3873 problem = check_large_ea_inode(ctx, entry, pctx,
3874 &entry_quota_blocks);
3875 if (problem && fix_problem(ctx, problem, pctx))
3878 quota_blocks += entry_quota_blocks;
3882 entry = EXT2_EXT_ATTR_NEXT(entry);
3884 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3885 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3888 region_free(region);
3891 * We only get here if there was no other errors that were fixed.
3892 * If there was a checksum fail, ask to correct it.
3895 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3896 pctx->errcode = e2fsck_write_ext_attr3(ctx, blk, block_buf,
3902 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3903 if (!ctx->ea_block_quota_blocks) {
3904 pctx->errcode = ea_refcount_create(0,
3905 &ctx->ea_block_quota_blocks);
3906 if (pctx->errcode) {
3911 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3916 if (!ctx->ea_block_quota_inodes) {
3917 pctx->errcode = ea_refcount_create(0,
3918 &ctx->ea_block_quota_inodes);
3919 if (pctx->errcode) {
3922 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3923 ctx->flags |= E2F_FLAG_ABORT;
3928 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3931 ea_block_quota->blocks = quota_blocks;
3932 ea_block_quota->inodes = quota_inodes;
3934 inc_ea_inode_refs(ctx, pctx, first, end);
3935 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3936 ea_refcount_store(ctx->refcount_orig, blk, header->h_refcount);
3938 * It might be racy that this block has been merged in the
3941 if (!is_blocks_used(ctx, blk, 1))
3942 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, blk);
3943 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3948 region_free(region);
3949 ext2fs_file_acl_block_set(fs, inode, 0);
3950 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3954 /* Returns 1 if bad htree, 0 if OK */
3955 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3956 ext2_ino_t ino, struct ext2_inode *inode,
3959 struct ext2_dx_root_info *root;
3960 ext2_filsys fs = ctx->fs;
3964 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3965 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3966 (!ext2fs_has_feature_dir_index(fs->super) &&
3967 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3970 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3972 if ((pctx->errcode) ||
3974 (blk < fs->super->s_first_data_block) ||
3975 (blk >= ext2fs_blocks_count(fs->super))) {
3976 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3982 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3983 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3986 /* XXX should check that beginning matches a directory */
3987 root = (struct ext2_dx_root_info *) (block_buf + 24);
3989 if ((root->reserved_zero || root->info_length < 8) &&
3990 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3993 pctx->num = root->hash_version;
3994 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3995 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3996 (root->hash_version != EXT2_HASH_TEA) &&
3997 (root->hash_version != EXT2_HASH_SIPHASH) &&
3998 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
4001 if (ext4_hash_in_dirent(inode)) {
4002 if (root->hash_version != EXT2_HASH_SIPHASH &&
4003 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
4006 if (root->hash_version == EXT2_HASH_SIPHASH &&
4007 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
4011 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
4012 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
4015 pctx->num = root->indirect_levels;
4016 /* if htree level is clearly too high, consider it to be broken */
4017 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
4018 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
4021 /* if level is only maybe too high, LARGE_DIR feature could be unset */
4022 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
4023 !ext2fs_has_feature_largedir(fs->super)) {
4024 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
4025 int idx_pb = 1 << (blockbits - 3);
4027 /* compare inode size/blocks vs. max-sized 2-level htree */
4028 if (EXT2_I_SIZE(pctx->inode) <
4029 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
4030 pctx->inode->i_blocks <
4031 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
4032 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
4036 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
4037 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4043 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
4044 struct ext2_inode *inode, int restart_flag,
4048 inode->i_links_count = 0;
4049 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
4050 inode->i_dtime = ctx->now;
4053 * If a special inode has such rotten block mappings that we
4054 * want to clear the whole inode, be sure to actually zap
4055 * the block maps because i_links_count isn't checked for
4056 * special inodes, and we'll end up right back here the next
4059 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
4060 memset(inode->i_block, 0, sizeof(inode->i_block));
4062 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
4063 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
4064 if (ctx->inode_reg_map)
4065 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
4066 if (ctx->inode_bad_map)
4067 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
4070 * If the inode was partially accounted for before processing
4071 * was aborted, we need to restart the pass 1 scan.
4073 ctx->flags |= restart_flag;
4075 if (ino == EXT2_BAD_INO)
4076 memset(inode, 0, sizeof(struct ext2_inode));
4078 e2fsck_write_inode(ctx, ino, inode, source);
4082 * Use the multiple-blocks reclamation code to fix alignment problems in
4083 * a bigalloc filesystem. We want a logical cluster to map to *only* one
4084 * physical cluster, and we want the block offsets within that cluster to
4087 static int has_unaligned_cluster_map(e2fsck_t ctx,
4088 blk64_t last_pblk, blk64_t last_lblk,
4089 blk64_t pblk, blk64_t lblk)
4091 blk64_t cluster_mask;
4093 if (!ctx->fs->cluster_ratio_bits)
4095 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
4098 * If the block in the logical cluster doesn't align with the block in
4099 * the physical cluster...
4101 if ((lblk & cluster_mask) != (pblk & cluster_mask))
4105 * If we cross a physical cluster boundary within a logical cluster...
4107 if (last_pblk && (lblk & cluster_mask) != 0 &&
4108 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
4109 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
4115 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
4116 struct process_block_struct *pb,
4117 blk64_t start_block, blk64_t end_block,
4119 ext2_extent_handle_t ehandle,
4122 struct ext2fs_extent extent;
4123 blk64_t blk, last_lblk;
4125 int is_dir, is_leaf;
4127 struct ext2_extent_info info;
4128 int failed_csum = 0;
4130 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
4133 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
4136 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
4137 !pb->eti.force_rebuild) {
4138 struct extent_tree_level *etl;
4140 etl = pb->eti.ext_info + info.curr_level;
4141 etl->num_extents += info.num_entries;
4142 etl->max_extents += info.max_entries;
4144 * Implementation wart: Splitting extent blocks when appending
4145 * will leave the old block with one free entry. Therefore
4146 * unless the node is totally full, pretend that a non-root
4147 * extent block can hold one fewer entry than it actually does,
4148 * so that we don't repeatedly rebuild the extent tree.
4150 if (info.curr_level && info.num_entries < info.max_entries)
4154 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
4156 while ((pctx->errcode == 0 ||
4157 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
4158 info.num_entries-- > 0) {
4159 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
4160 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
4161 last_lblk = extent.e_lblk + extent.e_len - 1;
4164 pctx->blk = extent.e_pblk;
4165 pctx->blk2 = extent.e_lblk;
4166 pctx->num = extent.e_len;
4167 pctx->blkcount = extent.e_lblk + extent.e_len;
4169 if (extent.e_pblk == 0 ||
4170 extent.e_pblk < ctx->fs->super->s_first_data_block ||
4171 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
4172 problem = PR_1_EXTENT_BAD_START_BLK;
4173 else if (extent.e_lblk < start_block)
4174 problem = PR_1_OUT_OF_ORDER_EXTENTS;
4175 else if ((end_block && last_lblk > end_block) &&
4176 !(last_lblk > eof_block &&
4177 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
4178 (pctx->inode->i_flags & EXT4_VERITY_FL))))
4179 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
4180 else if (is_leaf && extent.e_len == 0)
4181 problem = PR_1_EXTENT_LENGTH_ZERO;
4183 (extent.e_pblk + extent.e_len) >
4184 ext2fs_blocks_count(ctx->fs->super))
4185 problem = PR_1_EXTENT_ENDS_BEYOND;
4186 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
4187 !ext2fs_has_feature_largedir(ctx->fs->super) &&
4188 ((extent.e_lblk + extent.e_len) >
4189 (1U << (21 - ctx->fs->super->s_log_block_size))))
4190 problem = PR_1_TOOBIG_DIR;
4192 if (is_leaf && problem == 0 && extent.e_len > 0) {
4194 printf("extent_region(ino=%u, expect=%llu, "
4195 "lblk=%llu, len=%u)\n", pb->ino,
4196 (unsigned long long) pb->next_lblock,
4197 (unsigned long long) extent.e_lblk,
4200 if (extent.e_lblk < pb->next_lblock)
4201 problem = PR_1_EXTENT_COLLISION;
4202 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
4203 pb->next_lblock = extent.e_lblk + extent.e_len;
4207 * Uninitialized blocks in a directory? Clear the flag and
4208 * we'll interpret the blocks later.
4210 if (try_repairs && is_dir && problem == 0 &&
4211 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4212 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
4213 e2fsck_pass1_fix_lock(ctx);
4214 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4215 pb->inode_modified = 1;
4216 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4218 e2fsck_pass1_fix_unlock(ctx);
4223 #ifdef CONFIG_DEVELOPER_FEATURES
4224 if (try_repairs && !is_dir && problem == 0 &&
4225 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
4226 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4227 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
4228 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4229 pb->inode_modified = 1;
4230 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4237 if (try_repairs && problem) {
4239 if (fix_problem(ctx, problem, pctx)) {
4240 if (ctx->invalid_bitmaps) {
4242 * If fsck knows the bitmaps are bad,
4243 * skip to the next extent and
4244 * try to clear this extent again
4245 * after fixing the bitmaps, by
4248 pctx->errcode = ext2fs_extent_get(
4250 EXT2_EXTENT_NEXT_SIB,
4252 ctx->flags |= E2F_FLAG_RESTART_LATER;
4253 if (pctx->errcode ==
4254 EXT2_ET_NO_CURRENT_NODE) {
4260 e2fsck_pass1_fix_lock(ctx);
4261 e2fsck_read_bitmaps(ctx);
4262 pb->inode_modified = 1;
4264 ext2fs_extent_delete(ehandle, 0);
4265 e2fsck_pass1_fix_unlock(ctx);
4266 if (pctx->errcode) {
4267 pctx->str = "ext2fs_extent_delete";
4270 e2fsck_pass1_fix_lock(ctx);
4271 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4272 e2fsck_pass1_fix_unlock(ctx);
4273 if (pctx->errcode &&
4274 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
4275 pctx->str = "ext2fs_extent_fix_parents";
4278 pctx->errcode = ext2fs_extent_get(ehandle,
4279 EXT2_EXTENT_CURRENT,
4281 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
4292 blk64_t lblk = extent.e_lblk;
4293 int next_try_repairs = 1;
4295 blk = extent.e_pblk;
4298 * If this lower extent block collides with critical
4299 * metadata, don't try to repair the damage. Pass 1b
4300 * will reallocate the block; then we can try again.
4302 if (pb->ino != EXT2_RESIZE_INO &&
4303 extent.e_pblk < ctx->fs->super->s_blocks_count &&
4304 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4306 next_try_repairs = 0;
4309 PR_1_CRITICAL_METADATA_COLLISION,
4311 if ((ctx->options & E2F_OPT_NO) == 0)
4312 ctx->flags |= E2F_FLAG_RESTART_LATER;
4314 pctx->errcode = ext2fs_extent_get(ehandle,
4315 EXT2_EXTENT_DOWN, &extent);
4316 if (pctx->errcode &&
4317 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
4318 pctx->str = "EXT2_EXTENT_DOWN";
4319 problem = PR_1_EXTENT_HEADER_INVALID;
4320 if (!next_try_repairs)
4322 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
4323 goto report_problem;
4326 /* The next extent should match this index's logical start */
4327 if (extent.e_lblk != lblk) {
4328 struct ext2_extent_info e_info;
4330 pctx->errcode = ext2fs_extent_get_info(ehandle,
4332 if (pctx->errcode) {
4333 pctx->str = "ext2fs_extent_get_info";
4337 pctx->blk2 = extent.e_lblk;
4338 pctx->num = e_info.curr_level - 1;
4339 problem = PR_1_EXTENT_INDEX_START_INVALID;
4340 if (fix_problem(ctx, problem, pctx)) {
4341 e2fsck_pass1_fix_lock(ctx);
4342 pb->inode_modified = 1;
4344 ext2fs_extent_fix_parents(ehandle);
4345 e2fsck_pass1_fix_unlock(ctx);
4346 if (pctx->errcode) {
4347 pctx->str = "ext2fs_extent_fix_parents";
4352 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
4353 last_lblk, eof_block, ehandle,
4357 pctx->errcode = ext2fs_extent_get(ehandle,
4358 EXT2_EXTENT_UP, &extent);
4359 if (pctx->errcode) {
4360 pctx->str = "EXT2_EXTENT_UP";
4363 mark_block_used(ctx, blk);
4368 if ((pb->previous_block != 0) &&
4369 (pb->previous_block+1 != extent.e_pblk)) {
4370 if (ctx->options & E2F_OPT_FRAGCHECK) {
4375 else if (pb->is_reg)
4378 printf(("%6lu(%c): expecting %6lu "
4380 "phys %6lu log %lu len %lu\n"),
4381 (unsigned long) pctx->ino, type,
4382 (unsigned long) pb->previous_block+1,
4383 (unsigned long) extent.e_pblk,
4384 (unsigned long) extent.e_lblk,
4385 (unsigned long) extent.e_len);
4390 * If we notice a gap in the logical block mappings of an
4391 * extent-mapped directory, offer to close the hole by
4392 * moving the logical block down, otherwise we'll go mad in
4393 * pass 3 allocating empty directory blocks to fill the hole.
4395 if (try_repairs && is_dir &&
4396 pb->last_block + 1 < extent.e_lblk) {
4399 new_lblk = pb->last_block + 1;
4400 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
4401 new_lblk = ((new_lblk +
4402 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
4403 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
4405 EXT2FS_CLUSTER_MASK(ctx->fs));
4406 pctx->blk = extent.e_lblk;
4407 pctx->blk2 = new_lblk;
4408 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
4409 e2fsck_pass1_fix_lock(ctx);
4410 extent.e_lblk = new_lblk;
4411 pb->inode_modified = 1;
4412 pctx->errcode = ext2fs_extent_replace(ehandle,
4414 e2fsck_pass1_fix_unlock(ctx);
4415 if (pctx->errcode) {
4419 e2fsck_pass1_fix_lock(ctx);
4420 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4421 e2fsck_pass1_fix_unlock(ctx);
4423 goto failed_add_dir_block;
4424 pctx->errcode = ext2fs_extent_goto(ehandle,
4427 goto failed_add_dir_block;
4428 last_lblk = extent.e_lblk + extent.e_len - 1;
4434 while (++pb->last_db_block <
4435 (e2_blkcnt_t) extent.e_lblk) {
4436 pctx->errcode = ext2fs_add_dir_block2(
4440 if (pctx->errcode) {
4442 pctx->num = pb->last_db_block;
4443 goto failed_add_dir_block;
4447 for (i = 0; i < extent.e_len; i++) {
4448 pctx->errcode = ext2fs_add_dir_block2(
4453 if (pctx->errcode) {
4454 pctx->blk = extent.e_pblk + i;
4455 pctx->num = extent.e_lblk + i;
4456 failed_add_dir_block:
4457 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4458 /* Should never get here */
4459 ctx->flags |= E2F_FLAG_ABORT;
4463 if (extent.e_len > 0)
4464 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
4466 if (has_unaligned_cluster_map(ctx, pb->previous_block,
4470 for (i = 0; i < extent.e_len; i++) {
4471 pctx->blk = extent.e_lblk + i;
4472 pctx->blk2 = extent.e_pblk + i;
4473 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4474 mark_block_used(ctx, extent.e_pblk + i);
4475 mark_block_used(ctx, extent.e_pblk + i);
4480 * Check whether first cluster got marked in previous iteration.
4482 if (ctx->fs->cluster_ratio_bits &&
4483 pb->previous_block &&
4484 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
4485 EXT2FS_B2C(ctx->fs, pb->previous_block)))
4486 /* Set blk to the beginning of next cluster. */
4489 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
4491 /* Set blk to the beginning of current cluster. */
4492 blk = EXT2FS_C2B(ctx->fs,
4493 EXT2FS_B2C(ctx->fs, extent.e_pblk));
4495 if (blk < extent.e_pblk + extent.e_len) {
4496 mark_blocks_used(ctx, blk,
4497 extent.e_pblk + extent.e_len - blk);
4498 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
4499 EXT2FS_CLUSTER_RATIO(ctx->fs));
4500 pb->num_blocks += n;
4502 pb->last_block = extent.e_lblk + extent.e_len - 1;
4503 pb->previous_block = extent.e_pblk + extent.e_len - 1;
4504 start_block = pb->last_block = last_lblk;
4505 if (is_leaf && !is_dir &&
4506 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
4507 pb->last_init_lblock = last_lblk;
4509 pctx->errcode = ext2fs_extent_get(ehandle,
4510 EXT2_EXTENT_NEXT_SIB,
4514 /* Failed csum but passes checks? Ask to fix checksum. */
4516 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
4517 e2fsck_pass1_fix_lock(ctx);
4518 pb->inode_modified = 1;
4519 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4520 e2fsck_pass1_fix_unlock(ctx);
4525 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4529 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4530 struct process_block_struct *pb)
4532 struct ext2_extent_info info;
4533 struct ext2_inode *inode = pctx->inode;
4534 ext2_extent_handle_t ehandle;
4535 ext2_filsys fs = ctx->fs;
4536 ext2_ino_t ino = pctx->ino;
4539 struct ext3_extent_header *eh;
4541 /* Check for a proper extent header... */
4542 eh = (struct ext3_extent_header *) &inode->i_block[0];
4543 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4545 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4546 e2fsck_clear_inode(ctx, ino, inode, 0,
4547 "check_blocks_extents");
4552 /* ...since this function doesn't fail if i_block is zeroed. */
4553 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4554 if (pctx->errcode) {
4555 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4556 e2fsck_clear_inode(ctx, ino, inode, 0,
4557 "check_blocks_extents");
4562 retval = ext2fs_extent_get_info(ehandle, &info);
4564 int max_depth = info.max_depth;
4566 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4567 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4568 ctx->extent_depth_count[max_depth]++;
4571 /* Check maximum extent depth */
4572 pctx->blk = info.max_depth;
4573 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4574 if (pctx->blk2 < pctx->blk &&
4575 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4576 pb->eti.force_rebuild = 1;
4578 /* Can we collect extent tree level stats? */
4579 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4580 if (pctx->blk2 > pctx->blk)
4581 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4582 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4583 pb->eti.ino = pb->ino;
4585 pb->next_lblock = 0;
4587 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4588 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4589 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4590 if (pctx->errcode &&
4591 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4593 inode->i_blocks = 0;
4594 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4595 "check_blocks_extents");
4598 ext2fs_extent_free(ehandle);
4600 /* Rebuild unless it's a dir and we're rehashing it */
4601 if (LINUX_S_ISDIR(inode->i_mode) &&
4602 e2fsck_dir_will_be_rehashed(ctx, ino))
4605 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4606 e2fsck_rebuild_extents_later(ctx, ino);
4608 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4612 * In fact we don't need to check blocks for an inode with inline data
4613 * because this inode doesn't have any blocks. In this function all
4614 * we need to do is add this inode into dblist when it is a directory.
4616 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4617 struct process_block_struct *pb)
4620 size_t inline_data_size = 0;
4627 /* Process the dirents in i_block[] as the "first" block. */
4628 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4632 /* Process the dirents in the EA as a "second" block. */
4633 flags = ctx->fs->flags;
4634 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4635 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4637 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4638 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4639 if (pctx->errcode) {
4644 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4647 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4655 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4656 ctx->flags |= E2F_FLAG_ABORT;
4660 * This subroutine is called on each inode to account for all of the
4661 * blocks used by that inode.
4663 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4664 char *block_buf, const struct ea_quota *ea_ibody_quota)
4666 ext2_filsys fs = ctx->fs;
4667 struct process_block_struct pb;
4668 ext2_ino_t ino = pctx->ino;
4669 struct ext2_inode *inode = pctx->inode;
4670 unsigned bad_size = 0;
4671 int dirty_inode = 0;
4675 struct ea_quota ea_block_quota;
4678 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4679 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4681 pb.last_init_lblock = -1;
4682 pb.last_db_block = -1;
4683 pb.num_illegal_blocks = 0;
4684 pb.suppress = 0; pb.clear = 0;
4687 pb.previous_block = 0;
4688 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4689 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4690 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4694 pb.inode_modified = 0;
4695 pb.eti.force_rebuild = 0;
4699 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4700 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4702 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4703 if (e2fsck_should_abort(ctx))
4705 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4708 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4709 check_blocks_inline_data(ctx, pctx, &pb);
4710 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4711 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4712 check_blocks_extents(ctx, pctx, &pb);
4716 * If we've modified the inode, write it out before
4717 * iterate() tries to use it.
4720 e2fsck_write_inode(ctx, ino, inode,
4725 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4726 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4727 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4728 block_buf, process_block, &pb);
4730 * We do not have uninitialized extents in non extent
4733 pb.last_init_lblock = pb.last_block;
4735 * If iterate() changed a block mapping, we have to
4736 * re-read the inode. If we decide to clear the
4737 * inode after clearing some stuff, we'll re-write the
4738 * bad mappings into the inode!
4740 if (pb.inode_modified)
4741 e2fsck_read_inode(ctx, ino, inode,
4743 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4744 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4746 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4748 printf("bmap rebuild ino=%d\n", ino);
4750 if (!LINUX_S_ISDIR(inode->i_mode) ||
4751 !e2fsck_dir_will_be_rehashed(ctx, ino))
4752 e2fsck_rebuild_extents_later(ctx, ino);
4756 end_problem_latch(ctx, PR_LATCH_BLOCK);
4757 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4758 if (e2fsck_should_abort(ctx))
4761 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4763 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4764 if (LINUX_S_ISDIR(inode->i_mode))
4765 ctx->fs_fragmented_dir++;
4767 ctx->fs_fragmented++;
4771 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4776 if (inode->i_flags & EXT2_INDEX_FL) {
4777 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4778 inode->i_flags &= ~EXT2_INDEX_FL;
4781 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4785 if (!pb.num_blocks && pb.is_dir &&
4786 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4787 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4788 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4789 ctx->fs_directory_count--;
4794 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4795 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4796 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4797 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4799 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4800 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4801 ino, (ea_ibody_quota ?
4802 ea_ibody_quota->inodes : 0) +
4803 ea_block_quota.inodes + 1);
4806 if (!ext2fs_has_feature_huge_file(fs->super) ||
4807 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4808 pb.num_blocks *= (fs->blocksize / 512);
4809 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4811 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4812 ino, inode->i_size, (unsigned long long) pb.last_block,
4813 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4814 (unsigned long long) pb.num_blocks);
4816 size = EXT2_I_SIZE(inode);
4818 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4819 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4824 flags = ctx->fs->flags;
4825 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4826 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4828 ctx->fs->flags = (flags &
4829 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4831 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4832 if (err || sz != size) {
4836 } else if (size & (fs->blocksize - 1))
4838 else if (nblock > (pb.last_block + 1))
4840 else if (nblock < (pb.last_block + 1)) {
4841 if (((pb.last_block + 1) - nblock) >
4842 fs->super->s_prealloc_dir_blocks)
4846 if ((pb.last_init_lblock >= 0) &&
4847 /* Do not allow initialized allocated blocks past i_size*/
4848 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4849 !(inode->i_flags & EXT4_VERITY_FL))
4851 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4852 size > ext2_max_sizes[fs->super->s_log_block_size])
4853 /* too big for a direct/indirect-mapped file */
4855 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4857 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4858 /* too big for an extent-based file - 32bit ee_block */
4861 /* i_size for symlinks is checked elsewhere */
4862 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4863 /* Did inline_data set pctx->num earlier? */
4865 pctx->num = (pb.last_block + 1) * fs->blocksize;
4866 pctx->group = bad_size;
4867 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4868 ext2fs_inode_size_set(fs, inode, pctx->num);
4869 if (EXT2_I_SIZE(inode) == 0 &&
4870 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4871 memset(inode->i_block, 0,
4872 sizeof(inode->i_block));
4873 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4879 if (LINUX_S_ISREG(inode->i_mode) &&
4880 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4882 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4883 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4884 (ext2fs_has_feature_huge_file(fs->super) &&
4885 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4886 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4887 pctx->num = pb.num_blocks;
4888 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4889 inode->i_blocks = pb.num_blocks;
4890 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4897 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4898 * a block mapped file, so rebuild it as an extent file. We can skip
4899 * symlinks because they're never rewritten.
4901 if (ext2fs_has_feature_bigalloc(fs->super) &&
4902 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4903 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4904 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4905 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4906 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4907 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4912 if (ctx->dirs_to_hash && pb.is_dir &&
4913 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4914 !(inode->i_flags & EXT2_INDEX_FL) &&
4915 ((inode->i_size / fs->blocksize) >= 3))
4916 e2fsck_rehash_dir_later(ctx, ino);
4920 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4925 * Helper function called by process block when an illegal block is
4926 * found. It returns a description about why the block is illegal
4928 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4932 static char problem[80];
4934 super = fs->super->s_first_data_block;
4935 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4936 if (block < super) {
4937 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4939 } else if (block >= ext2fs_blocks_count(fs->super)) {
4940 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4943 for (i = 0; i < fs->group_desc_count; i++) {
4944 if (block == super) {
4945 sprintf(problem, "is the superblock in group %d", i);
4948 if (block > super &&
4949 block <= (super + fs->desc_blocks)) {
4950 sprintf(problem, "is in the group descriptors "
4954 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4955 sprintf(problem, "is the block bitmap of group %d", i);
4958 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4959 sprintf(problem, "is the inode bitmap of group %d", i);
4962 if (block >= ext2fs_inode_table_loc(fs, i) &&
4963 (block < ext2fs_inode_table_loc(fs, i)
4964 + fs->inode_blocks_per_group)) {
4965 sprintf(problem, "is in the inode table of group %d",
4969 super += fs->super->s_blocks_per_group;
4976 * This is a helper function for check_blocks().
4978 static int process_block(ext2_filsys fs,
4980 e2_blkcnt_t blockcnt,
4981 blk64_t ref_block EXT2FS_ATTR((unused)),
4982 int ref_offset EXT2FS_ATTR((unused)),
4985 struct process_block_struct *p;
4986 struct problem_context *pctx;
4987 blk64_t blk = *block_nr;
4989 problem_t problem = 0;
4992 p = (struct process_block_struct *) priv_data;
4997 * For a directory, add logical block zero for processing even if it's
4998 * not mapped or we'll be perennially stuck with broken "." and ".."
5001 if (p->is_dir && blockcnt == 0 && blk == 0) {
5002 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
5003 if (pctx->errcode) {
5005 pctx->num = blockcnt;
5006 goto failed_add_dir_block;
5015 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
5020 * Simplistic fragmentation check. We merely require that the
5021 * file be contiguous. (Which can never be true for really
5022 * big files that are greater than a block group.)
5024 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
5025 if (p->previous_block+1 != blk) {
5026 if (ctx->options & E2F_OPT_FRAGCHECK) {
5034 printf(_("%6lu(%c): expecting %6lu "
5035 "got phys %6lu (blkcnt %lld)\n"),
5036 (unsigned long) pctx->ino, type,
5037 (unsigned long) p->previous_block+1,
5038 (unsigned long) blk,
5039 (long long) blockcnt);
5045 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
5046 !pctx->inode->i_size_high &&
5047 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
5048 problem = PR_1_TOOBIG_DIR;
5049 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
5050 problem = PR_1_TOOBIG_DIR;
5051 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
5052 problem = PR_1_TOOBIG_REG;
5053 if (!p->is_dir && !p->is_reg && blockcnt > 0)
5054 problem = PR_1_TOOBIG_SYMLINK;
5056 if (blk < fs->super->s_first_data_block ||
5057 blk >= ext2fs_blocks_count(fs->super))
5058 problem = PR_1_ILLEGAL_BLOCK_NUM;
5061 * If this IND/DIND/TIND block is squatting atop some critical metadata
5062 * (group descriptors, superblock, bitmap, inode table), any write to
5063 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
5064 * fix that and restart fsck.
5067 p->ino != EXT2_RESIZE_INO &&
5068 blk < ctx->fs->super->s_blocks_count &&
5069 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
5071 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
5072 if ((ctx->options & E2F_OPT_NO) == 0)
5073 ctx->flags |= E2F_FLAG_RESTART_LATER;
5077 p->num_illegal_blocks++;
5079 * A bit of subterfuge here -- we're trying to fix a block
5080 * mapping, but the IND/DIND/TIND block could have collided
5081 * with some critical metadata. So, fix the in-core mapping so
5082 * iterate won't go insane, but return 0 instead of
5083 * BLOCK_CHANGED so that it won't write the remapping out to
5084 * our multiply linked block.
5086 * Even if we previously determined that an *IND block
5087 * conflicts with critical metadata, we must still try to
5088 * iterate the *IND block as if it is an *IND block to find and
5089 * mark the blocks it points to. Better to be overly cautious
5090 * with the used_blocks map so that we don't move the *IND
5091 * block to a block that's really in use!
5093 if (p->ino != EXT2_RESIZE_INO &&
5095 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
5100 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
5101 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
5105 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
5107 set_latch_flags(PR_LATCH_BLOCK,
5112 pctx->blkcount = blockcnt;
5113 if (fix_problem(ctx, problem, pctx)) {
5114 blk = *block_nr = 0;
5115 ret_code = BLOCK_CHANGED;
5116 p->inode_modified = 1;
5118 * If the directory block is too big and is beyond the
5119 * end of the FS, don't bother trying to add it for
5120 * processing -- the kernel would never have created a
5121 * directory this large, and we risk an ENOMEM abort.
5122 * In any case, the toobig handler for extent-based
5123 * directories also doesn't feed toobig blocks to
5126 if (problem == PR_1_TOOBIG_DIR)
5133 if (p->ino == EXT2_RESIZE_INO) {
5135 * The resize inode has already be sanity checked
5136 * during pass #0 (the superblock checks). All we
5137 * have to do is mark the double indirect block as
5138 * being in use; all of the other blocks are handled
5139 * by mark_table_blocks()).
5141 if (blockcnt == BLOCK_COUNT_DIND)
5142 mark_block_used(ctx, blk);
5144 } else if (!(ctx->fs->cluster_ratio_bits &&
5145 p->previous_block &&
5146 (EXT2FS_B2C(ctx->fs, blk) ==
5147 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
5148 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
5149 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
5150 mark_block_used(ctx, blk);
5152 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
5153 p->last_block, blk, blockcnt)) {
5154 pctx->blk = blockcnt;
5156 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
5157 mark_block_used(ctx, blk);
5158 mark_block_used(ctx, blk);
5161 p->last_block = blockcnt;
5162 p->previous_block = blk;
5164 if (p->is_dir && (blockcnt >= 0)) {
5165 while (++p->last_db_block < blockcnt) {
5166 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
5169 if (pctx->errcode) {
5171 pctx->num = p->last_db_block;
5172 goto failed_add_dir_block;
5175 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
5177 if (pctx->errcode) {
5179 pctx->num = blockcnt;
5180 failed_add_dir_block:
5181 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
5182 /* Should never get here */
5183 ctx->flags |= E2F_FLAG_ABORT;
5190 static int process_bad_block(ext2_filsys fs,
5192 e2_blkcnt_t blockcnt,
5193 blk64_t ref_block EXT2FS_ATTR((unused)),
5194 int ref_offset EXT2FS_ATTR((unused)),
5197 struct process_block_struct *p;
5198 blk64_t blk = *block_nr;
5199 blk64_t first_block;
5201 struct problem_context *pctx;
5207 p = (struct process_block_struct *) priv_data;
5211 pctx->ino = EXT2_BAD_INO;
5213 pctx->blkcount = blockcnt;
5215 if ((blk < fs->super->s_first_data_block) ||
5216 (blk >= ext2fs_blocks_count(fs->super))) {
5217 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
5219 return BLOCK_CHANGED;
5225 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
5227 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
5229 return BLOCK_CHANGED;
5231 } else if (is_blocks_used(ctx, blk, 1)) {
5233 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
5236 return BLOCK_CHANGED;
5238 if (e2fsck_should_abort(ctx))
5241 mark_block_used(ctx, blk);
5246 printf ("DEBUG: Marking %u as bad.\n", blk);
5248 ctx->fs_badblocks_count++;
5250 * If the block is not used, then mark it as used and return.
5251 * If it is already marked as found, this must mean that
5252 * there's an overlap between the filesystem table blocks
5253 * (bitmaps and inode table) and the bad block list.
5255 if (!is_blocks_used(ctx, blk, 1)) {
5256 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5260 * Try to find the where the filesystem block was used...
5262 first_block = fs->super->s_first_data_block;
5264 for (i = 0; i < fs->group_desc_count; i++ ) {
5267 if (!ext2fs_bg_has_super(fs, i))
5269 if (blk == first_block) {
5271 if (fix_problem(ctx,
5272 PR_1_BAD_PRIMARY_SUPERBLOCK,
5275 return BLOCK_CHANGED;
5279 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
5282 if ((blk > first_block) &&
5283 (blk <= first_block + fs->desc_blocks)) {
5285 pctx->blk = *block_nr;
5286 if (fix_problem(ctx,
5287 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
5289 return BLOCK_CHANGED;
5293 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
5297 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
5298 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
5299 ctx->invalid_block_bitmap_flag[i]++;
5300 ctx->invalid_bitmaps++;
5304 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
5305 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
5306 ctx->invalid_inode_bitmap_flag[i]++;
5307 ctx->invalid_bitmaps++;
5311 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
5312 (blk < (ext2fs_inode_table_loc(fs, i) +
5313 fs->inode_blocks_per_group))) {
5315 * If there are bad blocks in the inode table,
5316 * the inode scan code will try to do
5317 * something reasonable automatically.
5321 first_block += fs->super->s_blocks_per_group;
5324 * If we've gotten to this point, then the only
5325 * possibility is that the bad block inode meta data
5326 * is using a bad block.
5328 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
5329 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
5330 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
5332 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
5334 return BLOCK_CHANGED;
5336 if (e2fsck_should_abort(ctx))
5343 /* Warn user that the block wasn't claimed */
5344 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
5349 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
5350 const char *name, int num, blk64_t *new_block)
5352 ext2_filsys fs = ctx->fs;
5354 blk64_t old_block = *new_block;
5357 unsigned flexbg_size;
5360 struct problem_context pctx;
5362 clear_problem_context(&pctx);
5365 pctx.blk = old_block;
5369 * For flex_bg filesystems, first try to allocate the metadata
5370 * within the flex_bg, and if that fails then try finding the
5371 * space anywhere in the filesystem.
5373 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
5375 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
5376 flexbg = group / flexbg_size;
5377 first_block = ext2fs_group_first_block2(fs,
5378 flexbg_size * flexbg);
5379 last_grp = group | (flexbg_size - 1);
5380 if (last_grp >= fs->group_desc_count)
5381 last_grp = fs->group_desc_count - 1;
5382 last_block = ext2fs_group_last_block2(fs, last_grp);
5384 last_block = ext2fs_group_last_block2(fs, group);
5385 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
5386 num, ctx->block_found_map,
5388 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
5389 pctx.errcode = ext2fs_get_free_blocks2(fs,
5390 fs->super->s_first_data_block,
5391 ext2fs_blocks_count(fs->super),
5392 num, ctx->block_found_map, new_block);
5395 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
5396 ext2fs_unmark_valid(fs);
5397 ctx->flags |= E2F_FLAG_ABORT;
5400 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
5402 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
5403 ext2fs_unmark_valid(fs);
5404 ctx->flags |= E2F_FLAG_ABORT;
5407 ext2fs_mark_super_dirty(fs);
5408 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
5409 pctx.blk2 = *new_block;
5410 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
5411 PR_1_RELOC_TO), &pctx);
5413 for (i = 0; i < num; i++) {
5415 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
5417 pctx.errcode = io_channel_read_blk64(fs->io,
5418 old_block + i, 1, buf);
5420 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
5421 pctx.blk = (*new_block) + i;
5422 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
5425 pctx.blk = (*new_block) + i;
5426 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
5431 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
5433 ext2fs_free_mem(&buf);
5437 * This routine gets called at the end of pass 1 if bad blocks are
5438 * detected in the superblock, group descriptors, inode_bitmaps, or
5439 * block bitmaps. At this point, all of the blocks have been mapped
5440 * out, so we can try to allocate new block(s) to replace the bad
5443 static void handle_fs_bad_blocks(e2fsck_t ctx)
5445 ext2_filsys fs = ctx->fs;
5447 blk64_t first_block;
5450 for (i = 0; i < fs->group_desc_count; i++) {
5451 first_block = ext2fs_group_first_block2(fs, i);
5453 if (ctx->invalid_block_bitmap_flag[i]) {
5454 new_blk = ext2fs_block_bitmap_loc(fs, i);
5455 new_table_block(ctx, first_block, i, _("block bitmap"),
5457 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
5459 if (ctx->invalid_inode_bitmap_flag[i]) {
5460 new_blk = ext2fs_inode_bitmap_loc(fs, i);
5461 new_table_block(ctx, first_block, i, _("inode bitmap"),
5463 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
5465 if (ctx->invalid_inode_table_flag[i]) {
5466 new_blk = ext2fs_inode_table_loc(fs, i);
5467 new_table_block(ctx, first_block, i, _("inode table"),
5468 fs->inode_blocks_per_group,
5470 ext2fs_inode_table_loc_set(fs, i, new_blk);
5471 ctx->flags |= E2F_FLAG_RESTART;
5474 ctx->invalid_bitmaps = 0;
5478 * This routine marks all blocks which are used by the superblock,
5479 * group descriptors, inode bitmaps, and block bitmaps.
5481 static void mark_table_blocks(e2fsck_t ctx)
5483 ext2_filsys fs = ctx->fs;
5487 struct problem_context pctx;
5489 clear_problem_context(&pctx);
5491 for (i = 0; i < fs->group_desc_count; i++) {
5494 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
5495 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
5498 * Mark the blocks used for the inode table
5500 if (ext2fs_inode_table_loc(fs, i)) {
5501 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
5502 j < fs->inode_blocks_per_group;
5504 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5507 if (!ctx->invalid_inode_table_flag[i] &&
5509 PR_1_ITABLE_CONFLICT, &pctx)) {
5510 ctx->invalid_inode_table_flag[i]++;
5511 ctx->invalid_bitmaps++;
5514 ext2fs_mark_block_bitmap2(
5515 ctx->block_found_map, b);
5516 ext2fs_mark_block_bitmap2(
5517 ctx->block_metadata_map, b);
5523 * Mark block used for the block bitmap
5525 if (ext2fs_block_bitmap_loc(fs, i)) {
5526 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5527 ext2fs_block_bitmap_loc(fs, i))) {
5528 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5529 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5530 ctx->invalid_block_bitmap_flag[i]++;
5531 ctx->invalid_bitmaps++;
5534 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5535 ext2fs_block_bitmap_loc(fs, i));
5536 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5537 ext2fs_block_bitmap_loc(fs, i));
5541 * Mark block used for the inode bitmap
5543 if (ext2fs_inode_bitmap_loc(fs, i)) {
5544 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5545 ext2fs_inode_bitmap_loc(fs, i))) {
5546 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5547 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5548 ctx->invalid_inode_bitmap_flag[i]++;
5549 ctx->invalid_bitmaps++;
5552 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5553 ext2fs_inode_bitmap_loc(fs, i));
5554 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5555 ext2fs_inode_bitmap_loc(fs, i));
5562 * These subroutines short circuits ext2fs_get_blocks and
5563 * ext2fs_check_directory; we use them since we already have the inode
5564 * structure, so there's no point in letting the ext2fs library read
5567 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5570 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5573 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5574 return EXT2_ET_CALLBACK_NOTHANDLED;
5576 for (i=0; i < EXT2_N_BLOCKS; i++)
5577 blocks[i] = ctx->stashed_inode->i_block[i];
5581 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5582 struct ext2_inode *inode)
5584 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5586 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5587 return EXT2_ET_CALLBACK_NOTHANDLED;
5588 *inode = *ctx->stashed_inode;
5592 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5593 struct ext2_inode *inode)
5595 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5597 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5598 (inode != ctx->stashed_inode))
5599 *ctx->stashed_inode = *inode;
5600 return EXT2_ET_CALLBACK_NOTHANDLED;
5603 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5605 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5607 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5608 return EXT2_ET_CALLBACK_NOTHANDLED;
5610 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5611 return EXT2_ET_NO_DIRECTORY;
5615 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5618 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5622 if (ctx->block_found_map) {
5623 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5627 if (fs->block_map) {
5628 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5629 ext2fs_mark_bb_dirty(fs);
5632 if (!fs->block_map) {
5633 retval = ext2fs_read_block_bitmap(fs);
5638 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5647 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5648 blk64_t len, blk64_t *pblk, blk64_t *plen)
5650 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5653 if (ctx->block_found_map)
5654 return ext2fs_new_range(fs, flags, goal, len,
5655 ctx->block_found_map, pblk, plen);
5657 if (!fs->block_map) {
5658 retval = ext2fs_read_block_bitmap(fs);
5663 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5667 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5669 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5671 /* Never free a critical metadata block */
5672 if (ctx->block_found_map &&
5673 ctx->block_metadata_map &&
5675 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5678 if (ctx->block_found_map) {
5680 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5682 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5686 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5687 blk_t num, int inuse)
5689 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5691 /* Never free a critical metadata block */
5692 if (ctx->block_found_map &&
5693 ctx->block_metadata_map &&
5695 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5698 if (ctx->block_found_map) {
5700 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5703 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5708 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5710 ext2_filsys fs = ctx->fs;
5712 if (use_shortcuts) {
5713 fs->get_blocks = pass1_get_blocks;
5714 fs->check_directory = pass1_check_directory;
5715 fs->read_inode = pass1_read_inode;
5716 fs->write_inode = pass1_write_inode;
5717 ctx->stashed_ino = 0;
5720 fs->check_directory = 0;
5722 fs->write_inode = 0;
5726 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5728 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5729 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5730 e2fsck_block_alloc_stats, 0);
5731 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5732 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5733 e2fsck_block_alloc_stats_range, NULL);