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) \
995 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
1000 for (i = 0; i < EXT2_N_BLOCKS; i++) {
1001 x = inode->i_block[i];
1002 #ifdef WORDS_BIGENDIAN
1003 x = ext2fs_swab32(x);
1005 if (x >= ext2fs_blocks_count(fs->super))
1013 * Figure out what to do with an inode that has both extents and inline data
1014 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
1016 static int fix_inline_data_extents_file(e2fsck_t ctx,
1018 struct ext2_inode *inode,
1020 struct problem_context *pctx)
1022 size_t max_inline_ea_size;
1023 ext2_filsys fs = ctx->fs;
1026 /* Both feature flags not set? Just run the regular checks */
1027 if (!ext2fs_has_feature_extents(fs->super) &&
1028 !ext2fs_has_feature_inline_data(fs->super))
1031 /* Clear both flags if it's a special file */
1032 if (LINUX_S_ISCHR(inode->i_mode) ||
1033 LINUX_S_ISBLK(inode->i_mode) ||
1034 LINUX_S_ISFIFO(inode->i_mode) ||
1035 LINUX_S_ISSOCK(inode->i_mode)) {
1036 check_extents_inlinedata(ctx, pctx);
1040 /* If it looks like an extent tree, try to clear inlinedata */
1041 if (ext2fs_extent_header_verify(inode->i_block,
1042 sizeof(inode->i_block)) == 0 &&
1043 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1044 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1049 /* If it looks short enough to be inline data, try to clear extents */
1050 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1051 max_inline_ea_size = inode_size -
1052 (EXT2_GOOD_OLD_INODE_SIZE +
1053 ((struct ext2_inode_large *)inode)->i_extra_isize);
1055 max_inline_ea_size = 0;
1056 if (EXT2_I_SIZE(inode) <
1057 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1058 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1059 inode->i_flags &= ~EXT4_EXTENTS_FL;
1065 * Too big for inline data, but no evidence of extent tree -
1066 * maybe it's a block map file? If the mappings all look valid?
1068 if (could_be_block_map(fs, inode) &&
1069 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1070 #ifdef WORDS_BIGENDIAN
1073 for (i = 0; i < EXT2_N_BLOCKS; i++)
1074 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1077 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1082 /* Oh well, just clear the busted inode. */
1083 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1084 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1090 e2fsck_write_inode(ctx, ino, inode, "pass1");
1095 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1097 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1098 dgrp_t start = *group, grp, grp_end = ctx->fs->group_desc_count;
1099 blk64_t blocks_to_read = 0;
1100 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1103 if (ctx->fs->fs_num_threads > 1)
1104 grp_end = ctx->thread_info.et_group_end;
1106 if (ctx->readahead_kb == 0)
1109 /* Keep iterating groups until we have enough to readahead */
1110 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1111 for (grp = start; grp < grp_end; grp++) {
1112 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1114 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1115 ext2fs_bg_itable_unused(ctx->fs, grp);
1116 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1118 if (blocks_to_read * ctx->fs->blocksize >
1119 ctx->readahead_kb * 1024)
1123 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1125 if (err == EAGAIN) {
1126 ctx->readahead_kb /= 2;
1132 /* Error; disable itable readahead */
1133 *group = ctx->fs->group_desc_count;
1134 *next_ino = ctx->fs->super->s_inodes_count;
1137 * Don't do more readahead until we've reached the first inode
1138 * of the last inode scan buffer block for the last group.
1141 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1142 ctx->inode_buffer_blocks :
1143 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1144 ctx->fs->blocksize /
1145 EXT2_INODE_SIZE(ctx->fs->super);
1147 *next_ino = inodes_in_group -
1148 (inodes_in_group % inodes_per_buffer) + 1 +
1149 (grp * ctx->fs->super->s_inodes_per_group);
1154 * Check if the passed ino is one of the used superblock quota inodes.
1156 * Before the quota inodes were journaled, older superblock quota inodes
1157 * were just regular files in the filesystem and not reserved inodes. This
1158 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1159 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1161 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1163 enum quota_type qtype;
1165 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1166 if (*quota_sb_inump(sb, qtype) == ino)
1173 * Check if the passed ino is one of the reserved quota inodes.
1174 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1175 * inodes. These inodes may or may not be in use by the quota feature.
1177 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1179 enum quota_type qtype;
1181 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1182 if (quota_type2inum(qtype, fs->super) == ino)
1188 static int e2fsck_should_abort(e2fsck_t ctx)
1190 e2fsck_t global_ctx;
1192 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1195 if (ctx->global_ctx) {
1196 global_ctx = ctx->global_ctx;
1197 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1203 static void init_ext2_max_sizes()
1209 * Init ext2_max_sizes which will be immutable and shared between
1212 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1214 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1215 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1216 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1217 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1218 max_sizes = (max_sizes * (1UL << i));
1219 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1225 /* TODO: tdb needs to be handled properly for multiple threads*/
1226 static int multiple_threads_supported(e2fsck_t ctx)
1229 unsigned int threshold;
1230 ext2_ino_t num_dirs;
1235 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
1237 profile_get_uint(ctx->profile, "scratch_files",
1238 "numdirs_threshold", 0, 0, &threshold);
1239 profile_get_boolean(ctx->profile, "scratch_files",
1240 "icount", 0, 1, &enable);
1242 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
1244 num_dirs = 1024; /* Guess */
1246 /* tdb is unsupported now */
1247 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
1248 (!threshold || num_dirs > threshold))
1255 * Even though we could specify number of threads,
1256 * but it might be more than the whole filesystem
1257 * block groups, correct it here.
1259 static void e2fsck_pass1_set_thread_num(e2fsck_t ctx)
1261 unsigned flexbg_size = 1;
1262 ext2_filsys fs = ctx->fs;
1263 int num_threads = ctx->fs_num_threads;
1266 if (num_threads < 1) {
1271 if (!multiple_threads_supported(ctx)) {
1273 fprintf(stderr, "Fall through single thread for pass1 "
1274 "because tdb could not handle properly\n");
1278 if (ext2fs_has_feature_flex_bg(fs->super))
1279 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
1280 max_threads = fs->group_desc_count / flexbg_size;
1281 if (max_threads == 0)
1284 if (num_threads > max_threads) {
1285 fprintf(stderr, "Use max possible thread num: %d instead\n",
1287 num_threads = max_threads;
1290 ctx->fs_num_threads = num_threads;
1291 ctx->fs->fs_num_threads = num_threads;
1296 * We need call mark_table_blocks() before multiple
1297 * thread start, since all known system blocks should be
1298 * marked and checked later.
1300 static errcode_t e2fsck_pass1_prepare(e2fsck_t ctx)
1302 struct problem_context pctx;
1303 ext2_filsys fs = ctx->fs;
1304 unsigned long long readahead_kb;
1306 init_ext2_max_sizes();
1308 e2fsck_pass1_set_thread_num(ctx);
1310 /* If we can do readahead, figure out how many groups to pull in. */
1311 if (!e2fsck_can_readahead(ctx->fs))
1312 ctx->readahead_kb = 0;
1313 else if (ctx->readahead_kb == ~0ULL)
1314 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1317 /* don't use more than 1/10 of memory for threads checking */
1318 readahead_kb = get_memory_size() / (10 * ctx->fs_num_threads);
1319 /* maybe better disable RA if this is too small? */
1320 if (ctx->readahead_kb > readahead_kb)
1321 ctx->readahead_kb = readahead_kb;
1323 clear_problem_context(&pctx);
1324 if (!(ctx->options & E2F_OPT_PREEN))
1325 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1327 pctx.errcode = e2fsck_allocate_subcluster_bitmap(ctx->fs,
1328 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1329 "block_found_map", &ctx->block_found_map);
1332 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1333 ctx->flags |= E2F_FLAG_ABORT;
1334 return pctx.errcode;
1336 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
1337 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1338 "block_metadata_map", &ctx->block_metadata_map);
1341 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1342 ctx->flags |= E2F_FLAG_ABORT;
1343 return pctx.errcode;
1346 mark_table_blocks(ctx);
1347 pctx.errcode = ext2fs_convert_subcluster_bitmap(ctx->fs,
1348 &ctx->block_found_map);
1350 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1351 ctx->flags |= E2F_FLAG_ABORT;
1352 return pctx.errcode;
1355 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
1356 _("multiply claimed block map"),
1357 EXT2FS_BMAP64_RBTREE, "block_dup_map",
1358 &ctx->block_dup_map);
1361 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
1363 /* Should never get here */
1364 ctx->flags |= E2F_FLAG_ABORT;
1365 return pctx.errcode;
1368 if (ext2fs_has_feature_mmp(fs->super) &&
1369 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1370 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1371 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1372 fs->super->s_mmp_block);
1374 pthread_mutex_init(&ctx->fs_fix_mutex, NULL);
1375 pthread_rwlock_init(&ctx->fs_block_map_rwlock, NULL);
1381 static void e2fsck_pass1_post(e2fsck_t ctx)
1383 struct problem_context pctx;
1384 ext2_filsys fs = ctx->fs;
1387 (char *)e2fsck_allocate_memory(ctx, ctx->fs->blocksize * 3,
1388 "block interate buffer");
1389 reserve_block_for_root_repair(ctx);
1390 reserve_block_for_lnf_repair(ctx);
1393 * If any extended attribute blocks' reference counts need to
1394 * be adjusted, either up (ctx->refcount_extra), or down
1395 * (ctx->refcount), then fix them.
1397 if (ctx->refcount) {
1398 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1399 ea_refcount_free(ctx->refcount);
1402 if (ctx->refcount_extra) {
1403 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1405 ea_refcount_free(ctx->refcount_extra);
1406 ctx->refcount_extra = 0;
1409 if (ctx->invalid_bitmaps)
1410 handle_fs_bad_blocks(ctx);
1412 /* We don't need the block_ea_map any more */
1413 if (ctx->block_ea_map) {
1414 ext2fs_free_block_bitmap(ctx->block_ea_map);
1415 ctx->block_ea_map = 0;
1418 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1419 struct ext2_inode *inode;
1420 int inode_size = EXT2_INODE_SIZE(fs->super);
1421 inode = e2fsck_allocate_memory(ctx, inode_size,
1424 clear_problem_context(&pctx);
1425 pctx.errcode = ext2fs_create_resize_inode(fs);
1427 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1429 ctx->flags |= E2F_FLAG_ABORT;
1430 ext2fs_free_mem(&inode);
1431 ext2fs_free_mem(&block_buf);
1436 if (!pctx.errcode) {
1437 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1439 inode->i_mtime = ctx->now;
1440 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1443 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1444 ext2fs_free_mem(&inode);
1447 if (ctx->flags & E2F_FLAG_RESTART) {
1448 ext2fs_free_mem(&block_buf);
1452 if (ctx->block_dup_map) {
1453 if (!(ctx->flags & E2F_FLAG_DUP_BLOCK)) {
1454 ext2fs_free_mem(&block_buf);
1457 if (ctx->options & E2F_OPT_PREEN) {
1458 clear_problem_context(&pctx);
1459 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1461 e2fsck_pass1_dupblocks(ctx, block_buf);
1462 ext2fs_free_mem(&block_buf);
1463 ctx->flags &= ~E2F_FLAG_DUP_BLOCK;
1468 void e2fsck_pass1_run(e2fsck_t ctx)
1471 ext2_filsys fs = ctx->fs;
1473 struct ext2_inode *inode = NULL;
1474 ext2_inode_scan scan = NULL;
1475 char *block_buf = NULL;
1476 #ifdef RESOURCE_TRACK
1477 struct resource_track rtrack;
1479 unsigned char frag, fsize;
1480 struct problem_context pctx;
1481 struct scan_callback_struct scan_struct;
1482 struct ext2_super_block *sb = ctx->fs->super;
1484 const char *eop_next_inode = _("getting next inode from scan");
1485 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1486 int low_dtime_check = 1;
1487 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1488 unsigned int bufsize;
1489 int failed_csum = 0;
1490 ext2_ino_t ino_threshold = 0;
1491 dgrp_t ra_group = 0;
1492 struct ea_quota ea_ibody_quota;
1493 struct process_inode_block *inodes_to_process;
1494 int process_inode_count;
1496 init_resource_track(&rtrack, ctx->fs->io);
1497 clear_problem_context(&pctx);
1499 pass1_readahead(ctx, &ra_group, &ino_threshold);
1500 if (ext2fs_has_feature_dir_index(fs->super) &&
1501 !(ctx->options & E2F_OPT_NO)) {
1502 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1503 ctx->dirs_to_hash = 0;
1507 mtrace_print("Pass 1");
1510 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1511 extent_fs = ext2fs_has_feature_extents(sb);
1512 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1513 casefold_fs = ext2fs_has_feature_casefold(sb);
1516 * Allocate bitmaps structures
1518 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1519 EXT2FS_BMAP64_RBTREE,
1521 &ctx->inode_used_map);
1524 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1525 ctx->flags |= E2F_FLAG_ABORT;
1528 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1529 _("directory inode map"),
1530 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1531 EXT2FS_BMAP64_AUTODIR,
1532 "inode_dir_map", &ctx->inode_dir_map);
1535 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1536 ctx->flags |= E2F_FLAG_ABORT;
1539 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1540 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1541 "inode_reg_map", &ctx->inode_reg_map);
1544 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1545 ctx->flags |= E2F_FLAG_ABORT;
1550 e2fsck_allocate_inode_bitmap(fs,
1551 _("inode casefold map"),
1552 EXT2FS_BMAP64_RBTREE,
1553 "inode_casefold_map",
1554 &ctx->inode_casefold_map);
1557 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1558 ctx->flags |= E2F_FLAG_ABORT;
1562 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1563 &ctx->inode_link_info);
1565 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1566 ctx->flags |= E2F_FLAG_ABORT;
1569 bufsize = inode_size;
1570 if (bufsize < sizeof(struct ext2_inode_large))
1571 bufsize = sizeof(struct ext2_inode_large);
1572 inode = (struct ext2_inode *)
1573 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1575 inodes_to_process = (struct process_inode_block *)
1576 e2fsck_allocate_memory(ctx,
1577 (ctx->process_inode_size *
1578 sizeof(struct process_inode_block)),
1579 "array of inodes to process");
1580 process_inode_count = 0;
1582 pctx.errcode = ext2fs_init_dblist(fs, 0);
1584 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1585 ctx->flags |= E2F_FLAG_ABORT;
1590 * If the last orphan field is set, clear it, since the pass1
1591 * processing will automatically find and clear the orphans.
1592 * In the future, we may want to try using the last_orphan
1593 * linked list ourselves, but for now, we clear it so that the
1594 * ext3 mount code won't get confused.
1596 if (!(ctx->options & E2F_OPT_READONLY)) {
1597 if (fs->super->s_last_orphan) {
1598 fs->super->s_last_orphan = 0;
1599 ext2fs_mark_super_dirty(fs);
1603 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1604 "block interate buffer");
1605 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1606 e2fsck_use_inode_shortcuts(ctx, 1);
1607 e2fsck_intercept_block_allocations(ctx);
1608 old_op = ehandler_operation(_("opening inode scan"));
1609 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1611 ehandler_operation(old_op);
1613 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1614 ctx->flags |= E2F_FLAG_ABORT;
1617 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1618 EXT2_SF_WARN_GARBAGE_INODES, 0);
1619 ctx->stashed_inode = inode;
1620 scan_struct.ctx = ctx;
1621 scan_struct.block_buf = block_buf;
1622 scan_struct.inodes_to_process = inodes_to_process;
1623 scan_struct.process_inode_count = &process_inode_count;
1624 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1625 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1626 ctx->fs->group_desc_count)))
1628 if ((fs->super->s_wtime &&
1629 fs->super->s_wtime < fs->super->s_inodes_count) ||
1630 (fs->super->s_mtime &&
1631 fs->super->s_mtime < fs->super->s_inodes_count) ||
1632 (fs->super->s_mkfs_time &&
1633 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1634 low_dtime_check = 0;
1636 /* Set up ctx->lost_and_found if possible */
1637 (void) e2fsck_get_lost_and_found(ctx, 0);
1640 if (ctx->global_ctx) {
1641 if (ctx->options & E2F_OPT_DEBUG &&
1642 ctx->options & E2F_OPT_MULTITHREAD)
1643 fprintf(stderr, "thread %d jumping to group %d\n",
1644 ctx->thread_info.et_thread_index,
1645 ctx->thread_info.et_group_start);
1646 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1647 ctx->thread_info.et_group_start);
1649 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1650 ctx->flags |= E2F_FLAG_ABORT;
1657 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1658 if (e2fsck_mmp_update(fs))
1659 fatal_error(ctx, 0);
1661 old_op = ehandler_operation(eop_next_inode);
1662 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1664 if (ino > ino_threshold)
1665 pass1_readahead(ctx, &ra_group, &ino_threshold);
1666 ehandler_operation(old_op);
1667 if (e2fsck_should_abort(ctx))
1669 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1671 * If badblocks says badblocks is bad, offer to clear
1672 * the list, update the in-core bb list, and restart
1675 if (ino == EXT2_BAD_INO &&
1676 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1680 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1681 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1682 ctx->fs->badblocks = NULL;
1683 err = ext2fs_read_bb_inode(ctx->fs,
1684 &ctx->fs->badblocks);
1686 fix_problem(ctx, PR_1_ISCAN_ERROR,
1688 ctx->flags |= E2F_FLAG_ABORT;
1690 ctx->flags |= E2F_FLAG_RESTART;
1693 if (!ctx->inode_bb_map)
1695 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1696 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1699 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1702 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1703 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1704 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1705 ctx->flags |= E2F_FLAG_ABORT;
1711 if (ctx->global_ctx)
1712 ctx->thread_info.et_inode_number++;
1716 ctx->stashed_ino = ino;
1718 /* Clear trashed inode? */
1719 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1720 inode->i_links_count > 0 &&
1721 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1723 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1725 failed_csum = pctx.errcode != 0;
1728 * Check for inodes who might have been part of the
1729 * orphaned list linked list. They should have gotten
1730 * dealt with by now, unless the list had somehow been
1733 * FIXME: In the future, inodes which are still in use
1734 * (and which are therefore) pending truncation should
1735 * be handled specially. Right now we just clear the
1736 * dtime field, and the normal e2fsck handling of
1737 * inodes where i_size and the inode blocks are
1738 * inconsistent is to fix i_size, instead of releasing
1739 * the extra blocks. This won't catch the inodes that
1740 * was at the end of the orphan list, but it's better
1741 * than nothing. The right answer is that there
1742 * shouldn't be any bugs in the orphan list handling. :-)
1744 if (inode->i_dtime && low_dtime_check &&
1745 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1746 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1747 inode->i_dtime = inode->i_links_count ?
1749 e2fsck_write_inode(ctx, ino, inode,
1755 if (inode->i_links_count) {
1756 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1757 ino, inode->i_links_count);
1759 pctx.num = inode->i_links_count;
1760 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1761 ctx->flags |= E2F_FLAG_ABORT;
1764 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1765 !quota_inum_is_reserved(fs, ino)) {
1766 if (!inode->i_dtime && inode->i_mode) {
1767 if (fix_problem(ctx,
1768 PR_1_ZERO_DTIME, &pctx)) {
1769 inode->i_dtime = ctx->now;
1770 e2fsck_write_inode(ctx, ino, inode,
1775 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1779 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1780 ((!LINUX_S_ISDIR(inode->i_mode) &&
1781 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1783 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1784 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1785 e2fsck_write_inode(ctx, ino, inode, "pass1");
1788 /* Conflicting inlinedata/extents inode flags? */
1789 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1790 (inode->i_flags & EXT4_EXTENTS_FL)) {
1791 int res = fix_inline_data_extents_file(ctx, ino, inode,
1795 /* skip FINISH_INODE_LOOP */
1800 /* Test for incorrect inline_data flags settings. */
1801 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1802 (ino >= EXT2_FIRST_INODE(fs->super))) {
1805 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1806 if (!pctx.errcode &&
1807 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1808 e2fsck_pass1_fix_lock(ctx);
1809 ext2fs_set_feature_inline_data(sb);
1810 ext2fs_mark_super_dirty(fs);
1811 e2fsck_pass1_fix_unlock(ctx);
1813 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1814 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1815 /* skip FINISH_INODE_LOOP */
1820 /* Test for inline data flag but no attr */
1821 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1822 (ino >= EXT2_FIRST_INODE(fs->super))) {
1829 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1830 err = get_inline_data_ea_size(fs, ino, &size);
1831 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1832 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1836 /* Everything is awesome... */
1838 case EXT2_ET_BAD_EA_BLOCK_NUM:
1839 case EXT2_ET_BAD_EA_HASH:
1840 case EXT2_ET_BAD_EA_HEADER:
1841 case EXT2_ET_EA_BAD_NAME_LEN:
1842 case EXT2_ET_EA_BAD_VALUE_SIZE:
1843 case EXT2_ET_EA_KEY_NOT_FOUND:
1844 case EXT2_ET_EA_NO_SPACE:
1845 case EXT2_ET_MISSING_EA_FEATURE:
1846 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1847 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1848 case EXT2_ET_INLINE_DATA_NO_SPACE:
1849 case EXT2_ET_NO_INLINE_DATA:
1850 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1851 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1852 case EXT2_ET_EA_INODE_CORRUPTED:
1853 /* broken EA or no system.data EA; truncate */
1854 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1856 err = ext2fs_inode_size_set(fs, inode, 0);
1859 ctx->flags |= E2F_FLAG_ABORT;
1862 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1863 memset(&inode->i_block, 0,
1864 sizeof(inode->i_block));
1865 e2fsck_write_inode(ctx, ino, inode,
1871 /* Some other kind of non-xattr error? */
1873 ctx->flags |= E2F_FLAG_ABORT;
1879 * Test for incorrect extent flag settings.
1881 * On big-endian machines we must be careful:
1882 * When the inode is read, the i_block array is not swapped
1883 * if the extent flag is set. Therefore if we are testing
1884 * for or fixing a wrongly-set flag, we must potentially
1885 * (un)swap before testing, or after fixing.
1889 * In this case the extents flag was set when read, so
1890 * extent_header_verify is ok. If the inode is cleared,
1891 * no need to swap... so no extra swapping here.
1893 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1894 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1895 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1896 if ((ext2fs_extent_header_verify(inode->i_block,
1897 sizeof(inode->i_block)) == 0) &&
1898 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1899 e2fsck_pass1_fix_lock(ctx);
1900 ext2fs_set_feature_extents(sb);
1901 ext2fs_mark_super_dirty(fs);
1903 e2fsck_pass1_fix_unlock(ctx);
1904 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1906 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1907 if (ino == EXT2_BAD_INO)
1908 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1910 /* skip FINISH_INODE_LOOP */
1916 * For big-endian machines:
1917 * If the inode didn't have the extents flag set when it
1918 * was read, then the i_blocks array was swapped. To test
1919 * as an extents header, we must swap it back first.
1920 * IF we then set the extents flag, the entire i_block
1921 * array must be un/re-swapped to make it proper extents data.
1923 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1924 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1925 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1926 (LINUX_S_ISREG(inode->i_mode) ||
1927 LINUX_S_ISDIR(inode->i_mode))) {
1929 #ifdef WORDS_BIGENDIAN
1930 __u32 tmp_block[EXT2_N_BLOCKS];
1932 for (i = 0; i < EXT2_N_BLOCKS; i++)
1933 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1936 ehp = inode->i_block;
1938 if ((ext2fs_extent_header_verify(ehp,
1939 sizeof(inode->i_block)) == 0) &&
1940 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1941 inode->i_flags |= EXT4_EXTENTS_FL;
1942 #ifdef WORDS_BIGENDIAN
1943 memcpy(inode->i_block, tmp_block,
1944 sizeof(inode->i_block));
1946 e2fsck_write_inode(ctx, ino, inode, "pass1");
1951 if (ino == EXT2_BAD_INO) {
1952 struct process_block_struct pb;
1954 if ((failed_csum || inode->i_mode || inode->i_uid ||
1955 inode->i_gid || inode->i_links_count ||
1956 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1957 inode->i_file_acl) &&
1958 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1959 memset(inode, 0, sizeof(struct ext2_inode));
1960 e2fsck_write_inode(ctx, ino, inode,
1965 e2fsck_pass1_block_map_r_lock(ctx);
1966 pctx.errcode = ext2fs_copy_bitmap(ctx->global_ctx ?
1967 ctx->global_ctx->block_found_map :
1968 ctx->block_found_map, &pb.fs_meta_blocks);
1969 e2fsck_pass1_block_map_r_unlock(ctx);
1972 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1973 ctx->flags |= E2F_FLAG_ABORT;
1976 pb.ino = EXT2_BAD_INO;
1977 pb.num_blocks = pb.last_block = 0;
1978 pb.last_db_block = -1;
1979 pb.num_illegal_blocks = 0;
1980 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1981 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1985 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1986 block_buf, process_bad_block, &pb);
1987 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1989 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1990 ctx->flags |= E2F_FLAG_ABORT;
1994 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1995 ctx->flags |= E2F_FLAG_ABORT;
1998 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1999 clear_problem_context(&pctx);
2000 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2002 } else if (ino == EXT2_ROOT_INO) {
2004 * Make sure the root inode is a directory; if
2005 * not, offer to clear it. It will be
2006 * regenerated in pass #3.
2008 if (!LINUX_S_ISDIR(inode->i_mode)) {
2009 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
2013 * If dtime is set, offer to clear it. mke2fs
2014 * version 0.2b created filesystems with the
2015 * dtime field set for the root and lost+found
2016 * directories. We won't worry about
2017 * /lost+found, since that can be regenerated
2018 * easily. But we will fix the root directory
2019 * as a special case.
2021 if (inode->i_dtime && inode->i_links_count) {
2022 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
2024 e2fsck_write_inode(ctx, ino, inode,
2029 } else if (ino == EXT2_JOURNAL_INO) {
2030 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2031 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
2032 if (!LINUX_S_ISREG(inode->i_mode) &&
2033 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
2035 inode->i_mode = LINUX_S_IFREG;
2036 e2fsck_write_inode(ctx, ino, inode,
2040 check_blocks(ctx, &pctx, block_buf, NULL);
2041 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2044 if ((inode->i_links_count ||
2045 inode->i_blocks || inode->i_block[0]) &&
2046 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
2048 memset(inode, 0, inode_size);
2049 ext2fs_icount_store(ctx->inode_link_info,
2051 e2fsck_write_inode_full(ctx, ino, inode,
2052 inode_size, "pass1");
2055 } else if (quota_inum_is_reserved(fs, ino)) {
2056 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2057 if (ext2fs_has_feature_quota(fs->super) &&
2058 quota_inum_is_super(fs->super, ino)) {
2059 if (!LINUX_S_ISREG(inode->i_mode) &&
2060 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
2062 inode->i_mode = LINUX_S_IFREG;
2063 e2fsck_write_inode(ctx, ino, inode,
2067 check_blocks(ctx, &pctx, block_buf, NULL);
2068 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2071 if ((inode->i_links_count ||
2072 inode->i_blocks || inode->i_block[0]) &&
2073 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
2075 memset(inode, 0, inode_size);
2076 ext2fs_icount_store(ctx->inode_link_info,
2078 e2fsck_write_inode_full(ctx, ino, inode,
2079 inode_size, "pass1");
2082 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
2083 problem_t problem = 0;
2085 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2086 if (ino == EXT2_BOOT_LOADER_INO) {
2087 if (LINUX_S_ISDIR(inode->i_mode))
2088 problem = PR_1_RESERVED_BAD_MODE;
2089 } else if (ino == EXT2_RESIZE_INO) {
2090 if (inode->i_mode &&
2091 !LINUX_S_ISREG(inode->i_mode))
2092 problem = PR_1_RESERVED_BAD_MODE;
2094 if (inode->i_mode != 0)
2095 problem = PR_1_RESERVED_BAD_MODE;
2098 if (fix_problem(ctx, problem, &pctx)) {
2100 e2fsck_write_inode(ctx, ino, inode,
2105 check_blocks(ctx, &pctx, block_buf, NULL);
2106 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2110 if (!inode->i_links_count) {
2111 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2115 * n.b. 0.3c ext2fs code didn't clear i_links_count for
2116 * deleted files. Oops.
2118 * Since all new ext2 implementations get this right,
2119 * we now assume that the case of non-zero
2120 * i_links_count and non-zero dtime means that we
2121 * should keep the file, not delete it.
2124 if (inode->i_dtime) {
2125 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
2127 e2fsck_write_inode(ctx, ino, inode, "pass1");
2132 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2133 switch (fs->super->s_creator_os) {
2135 frag = inode->osd2.hurd2.h_i_frag;
2136 fsize = inode->osd2.hurd2.h_i_fsize;
2142 if (inode->i_faddr || frag || fsize ||
2143 (!ext2fs_has_feature_largedir(fs->super) &&
2144 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
2145 mark_inode_bad(ctx, ino);
2146 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2147 !ext2fs_has_feature_64bit(fs->super) &&
2148 inode->osd2.linux2.l_i_file_acl_high != 0)
2149 mark_inode_bad(ctx, ino);
2150 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2151 !ext2fs_has_feature_huge_file(fs->super) &&
2152 (inode->osd2.linux2.l_i_blocks_hi != 0))
2153 mark_inode_bad(ctx, ino);
2154 if (inode->i_flags & EXT2_IMAGIC_FL) {
2156 if (!ctx->inode_imagic_map)
2157 alloc_imagic_map(ctx);
2158 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
2161 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
2162 inode->i_flags &= ~EXT2_IMAGIC_FL;
2163 e2fsck_write_inode(ctx, ino,
2170 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
2171 check_is_really_dir(ctx, &pctx, block_buf);
2174 * ext2fs_inode_has_valid_blocks2 does not actually look
2175 * at i_block[] values, so not endian-sensitive here.
2177 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
2178 LINUX_S_ISLNK(inode->i_mode) &&
2179 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
2180 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
2181 inode->i_flags &= ~EXT4_EXTENTS_FL;
2182 e2fsck_write_inode(ctx, ino, inode, "pass1");
2186 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
2187 add_encrypted_file(ctx, &pctx) < 0)
2190 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
2191 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
2193 if (LINUX_S_ISDIR(inode->i_mode)) {
2194 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
2195 e2fsck_add_dir_info(ctx, ino, 0);
2196 ctx->fs_directory_count++;
2197 if (inode->i_flags & EXT4_CASEFOLD_FL)
2198 add_casefolded_dir(ctx, ino);
2199 } else if (LINUX_S_ISREG (inode->i_mode)) {
2200 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
2201 ctx->fs_regular_count++;
2202 } else if (LINUX_S_ISCHR (inode->i_mode) &&
2203 e2fsck_pass1_check_device_inode(fs, inode)) {
2204 check_extents_inlinedata(ctx, &pctx);
2205 check_immutable(ctx, &pctx);
2206 check_size(ctx, &pctx);
2207 ctx->fs_chardev_count++;
2208 } else if (LINUX_S_ISBLK (inode->i_mode) &&
2209 e2fsck_pass1_check_device_inode(fs, inode)) {
2210 check_extents_inlinedata(ctx, &pctx);
2211 check_immutable(ctx, &pctx);
2212 check_size(ctx, &pctx);
2213 ctx->fs_blockdev_count++;
2214 } else if (LINUX_S_ISLNK (inode->i_mode) &&
2215 e2fsck_pass1_check_symlink(fs, ino, inode,
2217 check_immutable(ctx, &pctx);
2218 ctx->fs_symlinks_count++;
2219 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
2220 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2222 } else if (ext2fs_is_fast_symlink(inode)) {
2223 ctx->fs_fast_symlinks_count++;
2224 check_blocks(ctx, &pctx, block_buf,
2226 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2230 else if (LINUX_S_ISFIFO (inode->i_mode) &&
2231 e2fsck_pass1_check_device_inode(fs, inode)) {
2232 check_extents_inlinedata(ctx, &pctx);
2233 check_immutable(ctx, &pctx);
2234 check_size(ctx, &pctx);
2235 ctx->fs_fifo_count++;
2236 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
2237 e2fsck_pass1_check_device_inode(fs, inode)) {
2238 check_extents_inlinedata(ctx, &pctx);
2239 check_immutable(ctx, &pctx);
2240 check_size(ctx, &pctx);
2241 ctx->fs_sockets_count++;
2243 mark_inode_bad(ctx, ino);
2244 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2245 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
2246 if (inode->i_block[EXT2_IND_BLOCK])
2247 ctx->fs_ind_count++;
2248 if (inode->i_block[EXT2_DIND_BLOCK])
2249 ctx->fs_dind_count++;
2250 if (inode->i_block[EXT2_TIND_BLOCK])
2251 ctx->fs_tind_count++;
2253 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2254 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
2255 (inode->i_block[EXT2_IND_BLOCK] ||
2256 inode->i_block[EXT2_DIND_BLOCK] ||
2257 inode->i_block[EXT2_TIND_BLOCK] ||
2258 ext2fs_file_acl_block(fs, inode))) {
2259 struct process_inode_block *itp;
2261 itp = &inodes_to_process[process_inode_count];
2263 itp->ea_ibody_quota = ea_ibody_quota;
2264 if (inode_size < sizeof(struct ext2_inode_large))
2265 memcpy(&itp->inode, inode, inode_size);
2267 memcpy(&itp->inode, inode, sizeof(itp->inode));
2268 process_inode_count++;
2270 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2272 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2274 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2277 if (process_inode_count >= ctx->process_inode_size) {
2278 process_inodes(ctx, block_buf, inodes_to_process,
2279 &process_inode_count);
2281 if (e2fsck_should_abort(ctx))
2285 process_inodes(ctx, block_buf, inodes_to_process,
2286 &process_inode_count);
2287 ext2fs_close_inode_scan(scan);
2290 if (ctx->ea_block_quota_blocks) {
2291 ea_refcount_free(ctx->ea_block_quota_blocks);
2292 ctx->ea_block_quota_blocks = 0;
2295 if (ctx->ea_block_quota_inodes) {
2296 ea_refcount_free(ctx->ea_block_quota_inodes);
2297 ctx->ea_block_quota_inodes = 0;
2300 /* We don't need the encryption policy => ID map any more */
2301 destroy_encryption_policy_map(ctx);
2303 if (ctx->flags & E2F_FLAG_RESTART) {
2305 * Only the master copy of the superblock and block
2306 * group descriptors are going to be written during a
2307 * restart, so set the superblock to be used to be the
2308 * master superblock.
2310 ctx->use_superblock = 0;
2314 if (ctx->large_dirs && !ext2fs_has_feature_largedir(ctx->fs->super)) {
2315 ext2_filsys fs = ctx->fs;
2317 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2318 ext2fs_set_feature_largedir(fs->super);
2319 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2320 ext2fs_mark_super_dirty(fs);
2322 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2323 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2324 ext2fs_update_dynamic_rev(fs);
2325 ext2fs_mark_super_dirty(fs);
2329 ctx->flags |= E2F_FLAG_ALLOC_OK;
2331 e2fsck_use_inode_shortcuts(ctx, 0);
2332 ext2fs_free_mem(&inodes_to_process);
2333 inodes_to_process = 0;
2336 ext2fs_close_inode_scan(scan);
2338 ext2fs_free_mem(&block_buf);
2340 ext2fs_free_mem(&inode);
2343 * The l+f inode may have been cleared, so zap it now and
2344 * later passes will recalculate it if necessary
2346 ctx->lost_and_found = 0;
2348 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2349 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2351 ctx->invalid_bitmaps++;
2355 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2356 ext2fs_generic_bitmap *dest)
2360 ret = ext2fs_copy_bitmap(*src, dest);
2369 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2372 ext2fs_free_generic_bmap(*bitmap);
2378 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2379 ext2fs_generic_bitmap *dest)
2384 if (*dest == NULL) {
2388 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2398 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2403 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2404 dest->inode_map = NULL;
2405 dest->block_map = NULL;
2406 dest->badblocks = NULL;
2408 dest->dblist->fs = dest;
2409 if (src->block_map) {
2410 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2415 if (src->inode_map) {
2416 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2422 if (src->badblocks) {
2423 retval = ext2fs_badblocks_copy(src->badblocks,
2429 /* disable it for now */
2430 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2431 retval = ext2fs_open_channel(dest, src_context->io_options,
2432 src_context->io_manager,
2433 src_context->openfs_flags,
2434 src->io->block_size);
2438 /* Block size might not be default */
2439 io_channel_set_blksize(dest->io, src->io->block_size);
2440 ehandler_init(dest->io);
2442 assert(dest->io->magic == src->io->magic);
2443 assert(dest->io->manager == src->io->manager);
2444 assert(strcmp(dest->io->name, src->io->name) == 0);
2445 assert(dest->io->block_size == src->io->block_size);
2446 assert(dest->io->read_error == src->io->read_error);
2447 assert(dest->io->write_error == src->io->write_error);
2448 assert(dest->io->refcount == src->io->refcount);
2449 assert(dest->io->flags == src->io->flags);
2450 assert(dest->io->app_data == dest);
2451 assert(src->io->app_data == src);
2452 assert(dest->io->align == src->io->align);
2454 /* The data should be written to disk immediately */
2455 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2456 /* icache will be rebuilt if needed, so do not copy from @src */
2461 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2463 struct ext2_inode_cache *icache = dest->icache;
2464 errcode_t retval = 0;
2466 io_channel dest_image_io;
2467 ext2fs_inode_bitmap inode_map;
2468 ext2fs_block_bitmap block_map;
2469 ext2_badblocks_list badblocks;
2472 e2fsck_t dest_ctx = dest->priv_data;
2475 dest_image_io = dest->image_io;
2476 inode_map = dest->inode_map;
2477 block_map = dest->block_map;
2478 badblocks = dest->badblocks;
2479 dblist = dest->dblist;
2480 flags = dest->flags;
2482 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2484 dest->image_io = dest_image_io;
2485 dest->icache = icache;
2486 dest->inode_map = inode_map;
2487 dest->block_map = block_map;
2488 dest->badblocks = badblocks;
2489 dest->dblist = dblist;
2490 dest->priv_data = dest_ctx;
2492 dest->dblist->fs = dest;
2493 dest->flags = src->flags | flags;
2494 if (!(src->flags & EXT2_FLAG_VALID) || !(flags & EXT2_FLAG_VALID))
2495 ext2fs_unmark_valid(dest);
2498 ext2fs_free_inode_cache(src->icache);
2502 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2507 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2514 retval = ext2fs_merge_dblist(src->dblist,
2519 dest->dblist = src->dblist;
2520 dest->dblist->fs = dest;
2525 if (src->badblocks) {
2526 if (dest->badblocks == NULL)
2527 retval = ext2fs_badblocks_copy(src->badblocks,
2530 retval = ext2fs_badblocks_merge(src->badblocks,
2534 io_channel_close(src->io);
2536 ext2fs_free_generic_bmap(src->inode_map);
2538 ext2fs_free_generic_bmap(src->block_map);
2540 ext2fs_badblocks_list_free(src->badblocks);
2542 ext2fs_free_dblist(src->dblist);
2547 static void e2fsck_pass1_copy_invalid_bitmaps(e2fsck_t global_ctx,
2548 e2fsck_t thread_ctx)
2551 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2552 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2553 dgrp_t total = grp_end - grp_start;
2555 thread_ctx->invalid_inode_bitmap_flag =
2556 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2557 "invalid_inode_bitmap");
2558 thread_ctx->invalid_block_bitmap_flag =
2559 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2560 "invalid_block_bitmap");
2561 thread_ctx->invalid_inode_table_flag =
2562 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2563 "invalid_inode_table");
2565 memcpy(thread_ctx->invalid_block_bitmap_flag,
2566 &global_ctx->invalid_block_bitmap_flag[grp_start],
2567 total * sizeof(int));
2568 memcpy(thread_ctx->invalid_inode_bitmap_flag,
2569 &global_ctx->invalid_inode_bitmap_flag[grp_start],
2570 total * sizeof(int));
2571 memcpy(thread_ctx->invalid_inode_table_flag,
2572 &global_ctx->invalid_inode_table_flag[grp_start],
2573 total * sizeof(int));
2575 thread_ctx->invalid_bitmaps = 0;
2576 for (i = grp_start, j = 0; i < grp_end; i++, j++) {
2577 if (thread_ctx->invalid_block_bitmap_flag[j])
2578 thread_ctx->invalid_bitmaps++;
2579 if (thread_ctx->invalid_inode_bitmap_flag[j])
2580 thread_ctx->invalid_bitmaps++;
2581 if (thread_ctx->invalid_inode_table_flag[j])
2582 thread_ctx->invalid_bitmaps++;
2586 static void e2fsck_pass1_merge_invalid_bitmaps(e2fsck_t global_ctx,
2587 e2fsck_t thread_ctx)
2590 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2591 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2592 dgrp_t total = grp_end - grp_start;
2594 memcpy(&global_ctx->invalid_block_bitmap_flag[grp_start],
2595 thread_ctx->invalid_block_bitmap_flag, total * sizeof(int));
2596 memcpy(&global_ctx->invalid_inode_bitmap_flag[grp_start],
2597 thread_ctx->invalid_inode_bitmap_flag, total * sizeof(int));
2598 memcpy(&global_ctx->invalid_inode_table_flag[grp_start],
2599 thread_ctx->invalid_inode_table_flag, total * sizeof(int));
2600 global_ctx->invalid_bitmaps += thread_ctx->invalid_bitmaps;
2603 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2604 int thread_index, int num_threads,
2605 dgrp_t average_group)
2608 e2fsck_t thread_context;
2609 ext2_filsys thread_fs;
2610 ext2_filsys global_fs = global_ctx->fs;
2611 struct e2fsck_thread *tinfo;
2613 assert(global_ctx->inode_used_map == NULL);
2614 assert(global_ctx->inode_dir_map == NULL);
2615 assert(global_ctx->inode_bb_map == NULL);
2616 assert(global_ctx->inode_imagic_map == NULL);
2617 assert(global_ctx->inode_reg_map == NULL);
2618 assert(global_ctx->inodes_to_rebuild == NULL);
2620 assert(global_ctx->block_found_map != NULL);
2621 assert(global_ctx->block_metadata_map != NULL);
2622 assert(global_ctx->block_dup_map != NULL);
2623 assert(global_ctx->block_ea_map == NULL);
2624 assert(global_ctx->fs->dblist == NULL);
2626 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2628 com_err(global_ctx->program_name, retval, "while allocating memory");
2631 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2632 thread_context->block_dup_map = NULL;
2634 retval = e2fsck_allocate_block_bitmap(global_ctx->fs,
2635 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
2636 "block_found_map", &thread_context->block_found_map);
2640 thread_context->global_ctx = global_ctx;
2641 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2643 com_err(global_ctx->program_name, retval, "while allocating memory");
2647 io_channel_flush_cleanup(global_fs->io);
2648 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2650 com_err(global_ctx->program_name, retval, "while copying fs");
2653 thread_fs->priv_data = thread_context;
2655 thread_context->thread_info.et_thread_index = thread_index;
2656 set_up_logging(thread_context);
2658 tinfo = &thread_context->thread_info;
2659 tinfo->et_group_start = average_group * thread_index;
2660 if (thread_index == global_fs->fs_num_threads - 1)
2661 tinfo->et_group_end = thread_fs->group_desc_count;
2663 tinfo->et_group_end = average_group * (thread_index + 1);
2664 tinfo->et_group_next = tinfo->et_group_start;
2665 tinfo->et_inode_number = 0;
2666 tinfo->et_log_buf[0] = '\0';
2667 tinfo->et_log_length = 0;
2668 if (thread_context->options & E2F_OPT_MULTITHREAD)
2669 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2670 tinfo->et_group_start, tinfo->et_group_end);
2671 thread_context->fs = thread_fs;
2672 retval = quota_init_context(&thread_context->qctx, thread_fs, 0);
2674 com_err(global_ctx->program_name, retval,
2675 "while init quota context");
2678 *thread_ctx = thread_context;
2679 e2fsck_pass1_copy_invalid_bitmaps(global_ctx, thread_context);
2682 ext2fs_free_mem(&thread_fs);
2684 if (thread_context->block_found_map)
2685 ext2fs_free_mem(&thread_context->block_found_map);
2686 ext2fs_free_mem(&thread_context);
2690 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2692 if (thread_ctx->dir_info == NULL)
2695 if (global_ctx->dir_info == NULL) {
2696 global_ctx->dir_info = thread_ctx->dir_info;
2697 thread_ctx->dir_info = NULL;
2701 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2702 global_ctx->dir_info);
2705 static void e2fsck_pass1_merge_dx_dir(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2707 if (thread_ctx->dx_dir_info == NULL)
2710 if (global_ctx->dx_dir_info == NULL) {
2711 global_ctx->dx_dir_info = thread_ctx->dx_dir_info;
2712 global_ctx->dx_dir_info_size = thread_ctx->dx_dir_info_size;
2713 global_ctx->dx_dir_info_count = thread_ctx->dx_dir_info_count;
2714 thread_ctx->dx_dir_info = NULL;
2718 e2fsck_merge_dx_dir(global_ctx, thread_ctx);
2721 static inline errcode_t
2722 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2723 ext2_icount_t *src_icount)
2726 if (*dest_icount == NULL) {
2727 *dest_icount = *src_icount;
2732 ret = ext2fs_icount_merge(*src_icount,
2742 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2746 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2747 &thread_ctx->inode_count);
2750 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2751 &thread_ctx->inode_link_info);
2756 static errcode_t e2fsck_pass1_merge_dirs_to_hash(e2fsck_t global_ctx,
2757 e2fsck_t thread_ctx)
2759 errcode_t retval = 0;
2761 if (!thread_ctx->dirs_to_hash)
2764 if (!global_ctx->dirs_to_hash)
2765 retval = ext2fs_badblocks_copy(thread_ctx->dirs_to_hash,
2766 &global_ctx->dirs_to_hash);
2768 retval = ext2fs_badblocks_merge(thread_ctx->dirs_to_hash,
2769 global_ctx->dirs_to_hash);
2774 static errcode_t e2fsck_pass1_merge_ea_inode_refs(e2fsck_t global_ctx,
2775 e2fsck_t thread_ctx)
2781 if (!thread_ctx->ea_inode_refs)
2784 if (!global_ctx->ea_inode_refs) {
2785 global_ctx->ea_inode_refs = thread_ctx->ea_inode_refs;
2786 thread_ctx->ea_inode_refs = NULL;
2790 ea_refcount_intr_begin(thread_ctx->ea_inode_refs);
2792 if ((blk = ea_refcount_intr_next(thread_ctx->ea_inode_refs,
2795 if (!global_ctx->block_ea_map ||
2796 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2798 retval = ea_refcount_store(global_ctx->ea_inode_refs,
2808 static ea_value_t ea_refcount_usage(e2fsck_t ctx, blk64_t blk,
2811 ea_value_t count_cur;
2812 ea_value_t count_extra = 0;
2813 ea_value_t count_orig;
2815 ea_refcount_fetch(ctx->refcount_orig, blk, &count_orig);
2816 ea_refcount_fetch(ctx->refcount, blk, &count_cur);
2817 /* most of time this is not needed */
2818 if (ctx->refcount_extra && count_cur == 0)
2819 ea_refcount_fetch(ctx->refcount_extra, blk, &count_extra);
2826 return count_orig + count_extra - count_cur;
2829 static errcode_t e2fsck_pass1_merge_ea_refcount(e2fsck_t global_ctx,
2830 e2fsck_t thread_ctx)
2834 errcode_t retval = 0;
2836 if (!thread_ctx->refcount)
2839 if (!global_ctx->refcount) {
2840 global_ctx->refcount = thread_ctx->refcount;
2841 thread_ctx->refcount = NULL;
2842 global_ctx->refcount_extra = thread_ctx->refcount;
2843 thread_ctx->refcount_extra = NULL;
2847 ea_refcount_intr_begin(thread_ctx->refcount);
2849 if ((blk = ea_refcount_intr_next(thread_ctx->refcount,
2853 * this EA has never seen before, so just store its
2854 * refcount and refcount_extra into global_ctx if needed.
2856 if (!global_ctx->block_ea_map ||
2857 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2861 retval = ea_refcount_store(global_ctx->refcount,
2866 if (count > 0 || !thread_ctx->refcount_extra)
2868 ea_refcount_fetch(thread_ctx->refcount_extra, blk,
2873 if (!global_ctx->refcount_extra) {
2874 retval = ea_refcount_create(0,
2875 &global_ctx->refcount_extra);
2879 retval = ea_refcount_store(global_ctx->refcount_extra,
2885 ea_value_t thread_usage;
2886 ea_value_t global_usage;
2889 thread_usage = ea_refcount_usage(thread_ctx,
2891 global_usage = ea_refcount_usage(global_ctx,
2893 if (thread_usage + global_usage <= orig) {
2894 new = orig - thread_usage - global_usage;
2895 retval = ea_refcount_store(global_ctx->refcount,
2901 /* update it is as zero */
2902 retval = ea_refcount_store(global_ctx->refcount,
2906 /* Ooops, this EA was referenced more than it stated */
2907 if (!global_ctx->refcount_extra) {
2908 retval = ea_refcount_create(0,
2909 &global_ctx->refcount_extra);
2913 new = global_usage + thread_usage - orig;
2914 retval = ea_refcount_store(global_ctx->refcount_extra,
2924 static errcode_t e2fsck_pass1_merge_context(e2fsck_t global_ctx,
2925 e2fsck_t thread_ctx)
2927 ext2_filsys global_fs = global_ctx->fs;
2931 global_ctx->fs_directory_count += thread_ctx->fs_directory_count;
2932 global_ctx->fs_regular_count += thread_ctx->fs_regular_count;
2933 global_ctx->fs_blockdev_count += thread_ctx->fs_blockdev_count;
2934 global_ctx->fs_chardev_count += thread_ctx->fs_chardev_count;
2935 global_ctx->fs_links_count += thread_ctx->fs_links_count;
2936 global_ctx->fs_symlinks_count += thread_ctx->fs_symlinks_count;
2937 global_ctx->fs_fast_symlinks_count += thread_ctx->fs_fast_symlinks_count;
2938 global_ctx->fs_fifo_count += thread_ctx->fs_fifo_count;
2939 global_ctx->fs_total_count += thread_ctx->fs_total_count;
2940 global_ctx->fs_badblocks_count += thread_ctx->fs_badblocks_count;
2941 global_ctx->fs_sockets_count += thread_ctx->fs_sockets_count;
2942 global_ctx->fs_ind_count += thread_ctx->fs_ind_count;
2943 global_ctx->fs_dind_count += thread_ctx->fs_dind_count;
2944 global_ctx->fs_tind_count += thread_ctx->fs_tind_count;
2945 global_ctx->fs_fragmented += thread_ctx->fs_fragmented;
2946 global_ctx->fs_fragmented_dir += thread_ctx->fs_fragmented_dir;
2947 global_ctx->large_files += thread_ctx->large_files;
2948 /* threads might enable E2F_OPT_YES */
2949 global_ctx->options |= thread_ctx->options;
2950 global_ctx->flags |= thread_ctx->flags;
2952 * The l+f inode may have been cleared, so zap it now and
2953 * later passes will recalculate it if necessary
2955 global_ctx->lost_and_found = 0;
2956 /* merge extent depth count */
2957 for (i = 0; i < MAX_EXTENT_DEPTH_COUNT; i++)
2958 global_ctx->extent_depth_count[i] +=
2959 thread_ctx->extent_depth_count[i];
2961 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2962 e2fsck_pass1_merge_dx_dir(global_ctx, thread_ctx);
2964 retval = e2fsck_pass1_merge_fs(global_ctx->fs, thread_ctx->fs);
2966 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2969 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2971 com_err(global_ctx->program_name, 0,
2972 _("while merging icounts\n"));
2976 retval = e2fsck_pass1_merge_dirs_to_hash(global_ctx, thread_ctx);
2978 com_err(global_ctx->program_name, 0,
2979 _("while merging dirs to hash\n"));
2983 e2fsck_pass1_merge_ea_inode_refs(global_ctx, thread_ctx);
2984 e2fsck_pass1_merge_ea_refcount(global_ctx, thread_ctx);
2985 retval = quota_merge_and_update_usage(global_ctx->qctx,
2990 e2fsck_pass1_merge_invalid_bitmaps(global_ctx, thread_ctx);
2992 retval = e2fsck_pass1_merge_bitmap(global_fs,
2993 &thread_ctx->inode_used_map,
2994 &global_ctx->inode_used_map);
2998 retval = e2fsck_pass1_merge_bitmap(global_fs,
2999 &thread_ctx->inode_bad_map,
3000 &global_ctx->inode_bad_map);
3003 retval = e2fsck_pass1_merge_bitmap(global_fs,
3004 &thread_ctx->inode_dir_map,
3005 &global_ctx->inode_dir_map);
3008 retval = e2fsck_pass1_merge_bitmap(global_fs,
3009 &thread_ctx->inode_bb_map,
3010 &global_ctx->inode_bb_map);
3013 retval = e2fsck_pass1_merge_bitmap(global_fs,
3014 &thread_ctx->inode_imagic_map,
3015 &global_ctx->inode_imagic_map);
3018 retval = e2fsck_pass1_merge_bitmap(global_fs,
3019 &thread_ctx->inode_reg_map,
3020 &global_ctx->inode_reg_map);
3023 retval = e2fsck_pass1_merge_bitmap(global_fs,
3024 &thread_ctx->inodes_to_rebuild,
3025 &global_ctx->inodes_to_rebuild);
3028 retval = e2fsck_pass1_merge_bitmap(global_fs,
3029 &thread_ctx->block_ea_map,
3030 &global_ctx->block_ea_map);
3034 if (ext2fs_has_feature_shared_blocks(global_fs->super) &&
3035 !(global_ctx->options & E2F_OPT_UNSHARE_BLOCKS))
3038 * This need be done after merging block_ea_map
3039 * because ea block might be shared, we need exclude
3040 * them from dup blocks.
3042 e2fsck_pass1_block_map_w_lock(thread_ctx);
3043 retval = ext2fs_merge_bitmap(thread_ctx->block_found_map,
3044 global_ctx->block_found_map,
3045 global_ctx->block_dup_map,
3046 global_ctx->block_ea_map);
3047 e2fsck_pass1_block_map_w_unlock(thread_ctx);
3048 if (retval == EEXIST)
3049 global_ctx->flags |= E2F_FLAG_DUP_BLOCK;
3054 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
3058 retval = e2fsck_pass1_merge_context(global_ctx, thread_ctx);
3059 ext2fs_free_mem(&thread_ctx->fs);
3060 if (thread_ctx->logf)
3061 fclose(thread_ctx->logf);
3062 if (thread_ctx->problem_logf) {
3063 fputs("</problem_log>\n", thread_ctx->problem_logf);
3064 fclose(thread_ctx->problem_logf);
3066 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
3067 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
3068 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
3069 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
3070 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
3071 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
3072 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
3073 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
3074 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
3075 if (thread_ctx->refcount)
3076 ea_refcount_free(thread_ctx->refcount);
3077 if (thread_ctx->refcount_extra)
3078 ea_refcount_free(thread_ctx->refcount_extra);
3079 if (thread_ctx->ea_inode_refs)
3080 ea_refcount_free(thread_ctx->ea_inode_refs);
3081 if (thread_ctx->refcount_orig)
3082 ea_refcount_free(thread_ctx->refcount_orig);
3083 e2fsck_free_dir_info(thread_ctx);
3084 ext2fs_free_icount(thread_ctx->inode_count);
3085 ext2fs_free_icount(thread_ctx->inode_link_info);
3086 if (thread_ctx->dirs_to_hash)
3087 ext2fs_badblocks_list_free(thread_ctx->dirs_to_hash);
3088 quota_release_context(&thread_ctx->qctx);
3089 ext2fs_free_mem(&thread_ctx->invalid_block_bitmap_flag);
3090 ext2fs_free_mem(&thread_ctx->invalid_inode_bitmap_flag);
3091 ext2fs_free_mem(&thread_ctx->invalid_inode_table_flag);
3092 ext2fs_free_mem(&thread_ctx);
3097 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
3098 e2fsck_t global_ctx)
3103 struct e2fsck_thread_info *pinfo;
3104 int num_threads = global_ctx->fs_num_threads;
3106 /* merge invalid bitmaps will recalculate it */
3107 global_ctx->invalid_bitmaps = 0;
3108 for (i = 0; i < num_threads; i++) {
3111 if (!pinfo->eti_started)
3114 rc = pthread_join(pinfo->eti_thread_id, NULL);
3116 com_err(global_ctx->program_name, rc,
3117 _("while joining thread\n"));
3121 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
3123 com_err(global_ctx->program_name, rc,
3124 _("while joining pass1 thread\n"));
3134 static void *e2fsck_pass1_thread(void *arg)
3136 struct e2fsck_thread_info *info = arg;
3137 e2fsck_t thread_ctx = info->eti_thread_ctx;
3138 #ifdef DEBUG_THREADS
3139 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
3142 #ifdef DEBUG_THREADS
3143 pthread_mutex_lock(&thread_debug->etd_mutex);
3144 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
3145 pthread_cond_wait(&thread_debug->etd_cond,
3146 &thread_debug->etd_mutex);
3148 pthread_mutex_unlock(&thread_debug->etd_mutex);
3151 #ifdef HAVE_SETJMP_H
3153 * When fatal_error() happens, jump to here. The thread
3154 * context's flags will be saved, but its abort_loc will
3155 * be overwritten by original jump buffer for the later
3158 if (setjmp(thread_ctx->abort_loc)) {
3159 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
3162 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
3165 e2fsck_pass1_run(thread_ctx);
3168 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
3170 _("Scanned group range [%lu, %lu), inodes %lu\n"),
3171 thread_ctx->thread_info.et_group_start,
3172 thread_ctx->thread_info.et_group_end,
3173 thread_ctx->thread_info.et_inode_number);
3175 #ifdef DEBUG_THREADS
3176 pthread_mutex_lock(&thread_debug->etd_mutex);
3177 thread_debug->etd_finished_threads++;
3178 pthread_cond_broadcast(&thread_debug->etd_cond);
3179 pthread_mutex_unlock(&thread_debug->etd_mutex);
3185 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
3186 e2fsck_t global_ctx)
3188 struct e2fsck_thread_info *infos;
3189 pthread_attr_t attr;
3192 struct e2fsck_thread_info *tmp_pinfo;
3194 e2fsck_t thread_ctx;
3195 dgrp_t average_group;
3196 int num_threads = global_ctx->fs_num_threads;
3197 #ifdef DEBUG_THREADS
3198 struct e2fsck_thread_debug thread_debug =
3199 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
3201 thread_debug.etd_finished_threads = 0;
3204 retval = pthread_attr_init(&attr);
3206 com_err(global_ctx->program_name, retval,
3207 _("while setting pthread attribute\n"));
3211 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
3212 if (infos == NULL) {
3214 com_err(global_ctx->program_name, retval,
3215 _("while allocating memory for threads\n"));
3216 pthread_attr_destroy(&attr);
3220 average_group = ext2fs_get_avg_group(global_ctx->fs);
3221 for (i = 0; i < num_threads; i++) {
3222 tmp_pinfo = &infos[i];
3223 tmp_pinfo->eti_thread_index = i;
3224 #ifdef DEBUG_THREADS
3225 tmp_pinfo->eti_debug = &thread_debug;
3227 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
3231 com_err(global_ctx->program_name, retval,
3232 _("while preparing pass1 thread\n"));
3235 tmp_pinfo->eti_thread_ctx = thread_ctx;
3237 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
3238 &e2fsck_pass1_thread, tmp_pinfo);
3240 com_err(global_ctx->program_name, retval,
3241 _("while creating thread\n"));
3242 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
3246 tmp_pinfo->eti_started = 1;
3249 /* destroy the thread attribute object, since it is no longer needed */
3250 ret = pthread_attr_destroy(&attr);
3252 com_err(global_ctx->program_name, ret,
3253 _("while destroying thread attribute\n"));
3259 e2fsck_pass1_threads_join(infos, global_ctx);
3266 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
3268 struct e2fsck_thread_info *infos = NULL;
3271 retval = e2fsck_pass1_threads_start(&infos, global_ctx);
3273 com_err(global_ctx->program_name, retval,
3274 _("while starting pass1 threads\n"));
3278 retval = e2fsck_pass1_threads_join(infos, global_ctx);
3280 com_err(global_ctx->program_name, retval,
3281 _("while joining pass1 threads\n"));
3286 global_ctx->flags |= E2F_FLAG_ABORT;
3291 void e2fsck_pass1(e2fsck_t ctx)
3294 int need_single = 1;
3296 retval = e2fsck_pass1_prepare(ctx);
3300 if (ctx->fs_num_threads > 1 ||
3301 ctx->options & E2F_OPT_MULTITHREAD) {
3303 e2fsck_pass1_multithread(ctx);
3307 e2fsck_pass1_run(ctx);
3308 e2fsck_pass1_post(ctx);
3311 #undef FINISH_INODE_LOOP
3314 * When the inode_scan routines call this callback at the end of the
3315 * glock group, call process_inodes.
3317 static errcode_t scan_callback(ext2_filsys fs,
3318 ext2_inode_scan scan EXT2FS_ATTR((unused)),
3319 dgrp_t group, void * priv_data)
3321 struct scan_callback_struct *scan_struct;
3323 struct e2fsck_thread *tinfo;
3325 scan_struct = (struct scan_callback_struct *) priv_data;
3326 ctx = scan_struct->ctx;
3328 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
3329 scan_struct->inodes_to_process,
3330 scan_struct->process_inode_count);
3333 if ((ctx->progress)(ctx, 1, group+1,
3334 ctx->fs->group_desc_count))
3335 return EXT2_ET_CANCEL_REQUESTED;
3338 if (ctx->global_ctx) {
3339 tinfo = &ctx->thread_info;
3340 tinfo->et_group_next++;
3341 if (ctx->options & E2F_OPT_DEBUG &&
3342 ctx->options & E2F_OPT_MULTITHREAD)
3343 log_out(ctx, _("group %d finished\n"),
3344 tinfo->et_group_next);
3345 if (tinfo->et_group_next >= tinfo->et_group_end)
3346 return EXT2_ET_SCAN_FINISHED;
3354 * Process the inodes in the "inodes to process" list.
3356 static void process_inodes(e2fsck_t ctx, char *block_buf,
3357 struct process_inode_block *inodes_to_process,
3358 int *process_inode_count)
3361 struct ext2_inode *old_stashed_inode;
3362 ext2_ino_t old_stashed_ino;
3363 const char *old_operation;
3365 struct problem_context pctx;
3368 printf("begin process_inodes: ");
3370 if (*process_inode_count == 0)
3372 old_operation = ehandler_operation(0);
3373 old_stashed_inode = ctx->stashed_inode;
3374 old_stashed_ino = ctx->stashed_ino;
3375 qsort(inodes_to_process, *process_inode_count,
3376 sizeof(struct process_inode_block), process_inode_cmp);
3377 clear_problem_context(&pctx);
3378 for (i=0; i < *process_inode_count; i++) {
3379 pctx.inode = ctx->stashed_inode =
3380 (struct ext2_inode *) &inodes_to_process[i].inode;
3381 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
3384 printf("%u ", pctx.ino);
3386 sprintf(buf, _("reading indirect blocks of inode %u"),
3388 ehandler_operation(buf);
3389 check_blocks(ctx, &pctx, block_buf,
3390 &inodes_to_process[i].ea_ibody_quota);
3391 if (e2fsck_should_abort(ctx))
3394 ctx->stashed_inode = old_stashed_inode;
3395 ctx->stashed_ino = old_stashed_ino;
3396 *process_inode_count = 0;
3398 printf("end process inodes\n");
3400 ehandler_operation(old_operation);
3403 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
3405 const struct process_inode_block *ib_a =
3406 (const struct process_inode_block *) a;
3407 const struct process_inode_block *ib_b =
3408 (const struct process_inode_block *) b;
3411 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
3412 ib_b->inode.i_block[EXT2_IND_BLOCK]);
3415 * We only call process_inodes() for non-extent
3416 * inodes, so it's OK to pass NULL to
3417 * ext2fs_file_acl_block() here.
3419 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
3420 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
3422 ret = ib_a->ino - ib_b->ino;
3427 * Mark an inode as being bad in some what
3429 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
3431 struct problem_context pctx;
3433 if (!ctx->inode_bad_map) {
3434 clear_problem_context(&pctx);
3436 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3437 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3438 "inode_bad_map", &ctx->inode_bad_map);
3441 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3442 /* Should never get here */
3443 ctx->flags |= E2F_FLAG_ABORT;
3447 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3450 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
3452 struct problem_context pctx;
3454 if (!ctx->casefolded_dirs) {
3455 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3459 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3460 if (pctx.errcode == 0)
3463 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3464 /* Should never get here */
3465 ctx->flags |= E2F_FLAG_ABORT;
3469 * This procedure will allocate the inode "bb" (badblock) map table
3471 static void alloc_bb_map(e2fsck_t ctx)
3473 struct problem_context pctx;
3475 clear_problem_context(&pctx);
3476 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3477 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3478 "inode_bb_map", &ctx->inode_bb_map);
3481 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3482 /* Should never get here */
3483 ctx->flags |= E2F_FLAG_ABORT;
3489 * This procedure will allocate the inode imagic table
3491 static void alloc_imagic_map(e2fsck_t ctx)
3493 struct problem_context pctx;
3495 clear_problem_context(&pctx);
3496 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3497 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3498 "inode_imagic_map", &ctx->inode_imagic_map);
3501 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3502 /* Should never get here */
3503 ctx->flags |= E2F_FLAG_ABORT;
3509 * Marks a block as in use, setting the dup_map if it's been set
3510 * already. Called by process_block and process_bad_block.
3512 * WARNING: Assumes checks have already been done to make sure block
3513 * is valid. This is true in both process_block and process_bad_block.
3515 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3517 struct problem_context pctx;
3518 e2fsck_t global_ctx = ctx->global_ctx ? ctx->global_ctx : ctx;
3520 clear_problem_context(&pctx);
3522 if (is_blocks_used(ctx, block, 1)) {
3523 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3524 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3527 ctx->flags |= E2F_FLAG_DUP_BLOCK;
3528 e2fsck_pass1_block_map_w_lock(ctx);
3529 ext2fs_fast_mark_block_bitmap2(global_ctx->block_dup_map, block);
3530 e2fsck_pass1_block_map_w_unlock(ctx);
3532 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3537 * When cluster size is greater than one block, it is caller's responsibility
3538 * to make sure block parameter starts at a cluster boundary.
3540 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3543 if (!is_blocks_used(ctx, block, num)) {
3544 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3548 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3549 mark_block_used(ctx, block + i);
3553 static errcode_t _INLINE_ e2fsck_write_ext_attr3(e2fsck_t ctx, blk64_t block,
3554 void *inbuf, ext2_ino_t inum)
3557 ext2_filsys fs = ctx->fs;
3559 e2fsck_pass1_fix_lock(ctx);
3560 retval = ext2fs_write_ext_attr3(fs, block, inbuf, inum);
3561 e2fsck_pass1_fix_unlock(ctx);
3566 * Adjust the extended attribute block's reference counts at the end
3567 * of pass 1, either by subtracting out references for EA blocks that
3568 * are still referenced in ctx->refcount, or by adding references for
3569 * EA blocks that had extra references as accounted for in
3570 * ctx->refcount_extra.
3572 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3573 char *block_buf, int adjust_sign)
3575 struct ext2_ext_attr_header *header;
3576 struct problem_context pctx;
3577 ext2_filsys fs = ctx->fs;
3582 clear_problem_context(&pctx);
3584 ea_refcount_intr_begin(refcount);
3586 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3589 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3592 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3595 header = (struct ext2_ext_attr_header *) block_buf;
3596 pctx.blkcount = header->h_refcount;
3597 should_be = header->h_refcount + adjust_sign * (int)count;
3598 pctx.num = should_be;
3599 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3600 header->h_refcount = should_be;
3601 pctx.errcode = e2fsck_write_ext_attr3(ctx, blk,
3605 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3614 * Handle processing the extended attribute blocks
3616 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3617 char *block_buf, struct ea_quota *ea_block_quota)
3619 ext2_filsys fs = ctx->fs;
3620 ext2_ino_t ino = pctx->ino;
3621 struct ext2_inode *inode = pctx->inode;
3624 struct ext2_ext_attr_header *header;
3625 struct ext2_ext_attr_entry *first, *entry;
3626 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3627 __u64 quota_inodes = 0;
3628 region_t region = 0;
3629 int failed_csum = 0;
3631 ea_block_quota->blocks = 0;
3632 ea_block_quota->inodes = 0;
3634 blk = ext2fs_file_acl_block(fs, inode);
3639 * If the Extended attribute flag isn't set, then a non-zero
3640 * file acl means that the inode is corrupted.
3642 * Or if the extended attribute block is an invalid block,
3643 * then the inode is also corrupted.
3645 if (!ext2fs_has_feature_xattr(fs->super) ||
3646 (blk < fs->super->s_first_data_block) ||
3647 (blk >= ext2fs_blocks_count(fs->super))) {
3648 mark_inode_bad(ctx, ino);
3652 /* If ea bitmap hasn't been allocated, create it */
3653 if (!ctx->block_ea_map) {
3654 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3655 _("ext attr block map"),
3656 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3657 &ctx->block_ea_map);
3658 if (pctx->errcode) {
3660 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3661 ctx->flags |= E2F_FLAG_ABORT;
3666 /* Create the EA refcount structure if necessary */
3667 if (!ctx->refcount) {
3668 pctx->errcode = ea_refcount_create(0,
3669 &ctx->refcount_orig);
3670 if (pctx->errcode) {
3672 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3673 ctx->flags |= E2F_FLAG_ABORT;
3677 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3678 if (pctx->errcode) {
3680 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3681 ctx->flags |= E2F_FLAG_ABORT;
3687 /* Debugging text */
3688 printf("Inode %u has EA block %u\n", ino, blk);
3691 /* Have we seen this EA block before? */
3692 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3693 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3694 ea_block_quota->inodes = 0;
3696 if (ctx->ea_block_quota_blocks) {
3697 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3700 ea_block_quota->blocks = quota_blocks;
3703 if (ctx->ea_block_quota_inodes)
3704 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3705 &ea_block_quota->inodes);
3707 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3709 /* Ooops, this EA was referenced more than it stated */
3710 if (!ctx->refcount_extra) {
3711 pctx->errcode = ea_refcount_create(0,
3712 &ctx->refcount_extra);
3713 if (pctx->errcode) {
3715 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3716 ctx->flags |= E2F_FLAG_ABORT;
3720 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3725 * OK, we haven't seen this EA block yet. So we need to
3729 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3730 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3733 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3736 if (pctx->errcode &&
3737 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3741 header = (struct ext2_ext_attr_header *) block_buf;
3742 pctx->blk = ext2fs_file_acl_block(fs, inode);
3743 if (((ctx->ext_attr_ver == 1) &&
3744 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3745 ((ctx->ext_attr_ver == 2) &&
3746 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3747 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3751 if (header->h_blocks != 1) {
3752 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3756 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3759 region = region_create(0, fs->blocksize);
3761 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3762 ctx->flags |= E2F_FLAG_ABORT;
3765 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3766 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3770 first = (struct ext2_ext_attr_entry *)(header+1);
3771 end = block_buf + fs->blocksize;
3773 while ((char *)entry < end && *(__u32 *)entry) {
3776 if (region_allocate(region, (char *)entry - (char *)header,
3777 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3778 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3782 if ((ctx->ext_attr_ver == 1 &&
3783 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3784 (ctx->ext_attr_ver == 2 &&
3785 entry->e_name_index == 0)) {
3786 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3790 if (entry->e_value_inum == 0) {
3791 if (entry->e_value_offs + entry->e_value_size >
3793 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3797 if (entry->e_value_size &&
3798 region_allocate(region, entry->e_value_offs,
3799 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3800 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3805 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3806 entry->e_value_offs);
3808 if (entry->e_hash != hash) {
3809 pctx->num = entry->e_hash;
3810 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3812 entry->e_hash = hash;
3816 blk64_t entry_quota_blocks;
3818 problem = check_large_ea_inode(ctx, entry, pctx,
3819 &entry_quota_blocks);
3820 if (problem && fix_problem(ctx, problem, pctx))
3823 quota_blocks += entry_quota_blocks;
3827 entry = EXT2_EXT_ATTR_NEXT(entry);
3829 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3830 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3833 region_free(region);
3836 * We only get here if there was no other errors that were fixed.
3837 * If there was a checksum fail, ask to correct it.
3840 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3841 pctx->errcode = e2fsck_write_ext_attr3(ctx, blk, block_buf,
3847 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3848 if (!ctx->ea_block_quota_blocks) {
3849 pctx->errcode = ea_refcount_create(0,
3850 &ctx->ea_block_quota_blocks);
3851 if (pctx->errcode) {
3856 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3861 if (!ctx->ea_block_quota_inodes) {
3862 pctx->errcode = ea_refcount_create(0,
3863 &ctx->ea_block_quota_inodes);
3864 if (pctx->errcode) {
3867 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3868 ctx->flags |= E2F_FLAG_ABORT;
3873 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3876 ea_block_quota->blocks = quota_blocks;
3877 ea_block_quota->inodes = quota_inodes;
3879 inc_ea_inode_refs(ctx, pctx, first, end);
3880 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3881 ea_refcount_store(ctx->refcount_orig, blk, header->h_refcount);
3883 * It might be racy that this block has been merged in the
3886 if (!is_blocks_used(ctx, blk, 1))
3887 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, blk);
3888 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3893 region_free(region);
3894 ext2fs_file_acl_block_set(fs, inode, 0);
3895 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3899 /* Returns 1 if bad htree, 0 if OK */
3900 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3901 ext2_ino_t ino, struct ext2_inode *inode,
3904 struct ext2_dx_root_info *root;
3905 ext2_filsys fs = ctx->fs;
3909 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3910 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3911 (!ext2fs_has_feature_dir_index(fs->super) &&
3912 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3915 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3917 if ((pctx->errcode) ||
3919 (blk < fs->super->s_first_data_block) ||
3920 (blk >= ext2fs_blocks_count(fs->super))) {
3921 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3927 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3928 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3931 /* XXX should check that beginning matches a directory */
3932 root = (struct ext2_dx_root_info *) (block_buf + 24);
3934 if ((root->reserved_zero || root->info_length < 8) &&
3935 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3938 pctx->num = root->hash_version;
3939 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3940 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3941 (root->hash_version != EXT2_HASH_TEA) &&
3942 (root->hash_version != EXT2_HASH_SIPHASH) &&
3943 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3946 if (ext4_hash_in_dirent(inode)) {
3947 if (root->hash_version != EXT2_HASH_SIPHASH &&
3948 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3951 if (root->hash_version == EXT2_HASH_SIPHASH &&
3952 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3956 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3957 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3960 pctx->num = root->indirect_levels;
3961 /* if htree level is clearly too high, consider it to be broken */
3962 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3963 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3966 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3967 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3968 !ext2fs_has_feature_largedir(fs->super)) {
3969 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3970 int idx_pb = 1 << (blockbits - 3);
3972 /* compare inode size/blocks vs. max-sized 2-level htree */
3973 if (EXT2_I_SIZE(pctx->inode) <
3974 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3975 pctx->inode->i_blocks <
3976 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3977 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3981 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3982 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3988 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3989 struct ext2_inode *inode, int restart_flag,
3993 inode->i_links_count = 0;
3994 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3995 inode->i_dtime = ctx->now;
3998 * If a special inode has such rotten block mappings that we
3999 * want to clear the whole inode, be sure to actually zap
4000 * the block maps because i_links_count isn't checked for
4001 * special inodes, and we'll end up right back here the next
4004 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
4005 memset(inode->i_block, 0, sizeof(inode->i_block));
4007 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
4008 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
4009 if (ctx->inode_reg_map)
4010 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
4011 if (ctx->inode_bad_map)
4012 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
4015 * If the inode was partially accounted for before processing
4016 * was aborted, we need to restart the pass 1 scan.
4018 ctx->flags |= restart_flag;
4020 if (ino == EXT2_BAD_INO)
4021 memset(inode, 0, sizeof(struct ext2_inode));
4023 e2fsck_write_inode(ctx, ino, inode, source);
4027 * Use the multiple-blocks reclamation code to fix alignment problems in
4028 * a bigalloc filesystem. We want a logical cluster to map to *only* one
4029 * physical cluster, and we want the block offsets within that cluster to
4032 static int has_unaligned_cluster_map(e2fsck_t ctx,
4033 blk64_t last_pblk, blk64_t last_lblk,
4034 blk64_t pblk, blk64_t lblk)
4036 blk64_t cluster_mask;
4038 if (!ctx->fs->cluster_ratio_bits)
4040 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
4043 * If the block in the logical cluster doesn't align with the block in
4044 * the physical cluster...
4046 if ((lblk & cluster_mask) != (pblk & cluster_mask))
4050 * If we cross a physical cluster boundary within a logical cluster...
4052 if (last_pblk && (lblk & cluster_mask) != 0 &&
4053 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
4054 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
4060 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
4061 struct process_block_struct *pb,
4062 blk64_t start_block, blk64_t end_block,
4064 ext2_extent_handle_t ehandle,
4067 struct ext2fs_extent extent;
4068 blk64_t blk, last_lblk;
4070 int is_dir, is_leaf;
4072 struct ext2_extent_info info;
4073 int failed_csum = 0;
4075 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
4078 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
4081 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
4082 !pb->eti.force_rebuild) {
4083 struct extent_tree_level *etl;
4085 etl = pb->eti.ext_info + info.curr_level;
4086 etl->num_extents += info.num_entries;
4087 etl->max_extents += info.max_entries;
4089 * Implementation wart: Splitting extent blocks when appending
4090 * will leave the old block with one free entry. Therefore
4091 * unless the node is totally full, pretend that a non-root
4092 * extent block can hold one fewer entry than it actually does,
4093 * so that we don't repeatedly rebuild the extent tree.
4095 if (info.curr_level && info.num_entries < info.max_entries)
4099 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
4101 while ((pctx->errcode == 0 ||
4102 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
4103 info.num_entries-- > 0) {
4104 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
4105 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
4106 last_lblk = extent.e_lblk + extent.e_len - 1;
4109 pctx->blk = extent.e_pblk;
4110 pctx->blk2 = extent.e_lblk;
4111 pctx->num = extent.e_len;
4112 pctx->blkcount = extent.e_lblk + extent.e_len;
4114 if (extent.e_pblk == 0 ||
4115 extent.e_pblk < ctx->fs->super->s_first_data_block ||
4116 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
4117 problem = PR_1_EXTENT_BAD_START_BLK;
4118 else if (extent.e_lblk < start_block)
4119 problem = PR_1_OUT_OF_ORDER_EXTENTS;
4120 else if ((end_block && last_lblk > end_block) &&
4121 !(last_lblk > eof_block &&
4122 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
4123 (pctx->inode->i_flags & EXT4_VERITY_FL))))
4124 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
4125 else if (is_leaf && extent.e_len == 0)
4126 problem = PR_1_EXTENT_LENGTH_ZERO;
4128 (extent.e_pblk + extent.e_len) >
4129 ext2fs_blocks_count(ctx->fs->super))
4130 problem = PR_1_EXTENT_ENDS_BEYOND;
4131 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
4132 !ext2fs_has_feature_largedir(ctx->fs->super) &&
4133 ((extent.e_lblk + extent.e_len) >
4134 (1U << (21 - ctx->fs->super->s_log_block_size))))
4135 problem = PR_1_TOOBIG_DIR;
4137 if (is_leaf && problem == 0 && extent.e_len > 0) {
4139 printf("extent_region(ino=%u, expect=%llu, "
4140 "lblk=%llu, len=%u)\n", pb->ino,
4141 (unsigned long long) pb->next_lblock,
4142 (unsigned long long) extent.e_lblk,
4145 if (extent.e_lblk < pb->next_lblock)
4146 problem = PR_1_EXTENT_COLLISION;
4147 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
4148 pb->next_lblock = extent.e_lblk + extent.e_len;
4152 * Uninitialized blocks in a directory? Clear the flag and
4153 * we'll interpret the blocks later.
4155 if (try_repairs && is_dir && problem == 0 &&
4156 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4157 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
4158 e2fsck_pass1_fix_lock(ctx);
4159 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4160 pb->inode_modified = 1;
4161 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4163 e2fsck_pass1_fix_unlock(ctx);
4168 #ifdef CONFIG_DEVELOPER_FEATURES
4169 if (try_repairs && !is_dir && problem == 0 &&
4170 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
4171 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4172 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
4173 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4174 pb->inode_modified = 1;
4175 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4182 if (try_repairs && problem) {
4184 if (fix_problem(ctx, problem, pctx)) {
4185 if (ctx->invalid_bitmaps) {
4187 * If fsck knows the bitmaps are bad,
4188 * skip to the next extent and
4189 * try to clear this extent again
4190 * after fixing the bitmaps, by
4193 pctx->errcode = ext2fs_extent_get(
4195 EXT2_EXTENT_NEXT_SIB,
4197 ctx->flags |= E2F_FLAG_RESTART_LATER;
4198 if (pctx->errcode ==
4199 EXT2_ET_NO_CURRENT_NODE) {
4205 e2fsck_pass1_fix_lock(ctx);
4206 e2fsck_read_bitmaps(ctx);
4207 pb->inode_modified = 1;
4209 ext2fs_extent_delete(ehandle, 0);
4210 e2fsck_pass1_fix_unlock(ctx);
4211 if (pctx->errcode) {
4212 pctx->str = "ext2fs_extent_delete";
4215 e2fsck_pass1_fix_lock(ctx);
4216 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4217 e2fsck_pass1_fix_unlock(ctx);
4218 if (pctx->errcode &&
4219 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
4220 pctx->str = "ext2fs_extent_fix_parents";
4223 pctx->errcode = ext2fs_extent_get(ehandle,
4224 EXT2_EXTENT_CURRENT,
4226 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
4237 blk64_t lblk = extent.e_lblk;
4238 int next_try_repairs = 1;
4240 blk = extent.e_pblk;
4243 * If this lower extent block collides with critical
4244 * metadata, don't try to repair the damage. Pass 1b
4245 * will reallocate the block; then we can try again.
4247 if (pb->ino != EXT2_RESIZE_INO &&
4248 extent.e_pblk < ctx->fs->super->s_blocks_count &&
4249 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4251 next_try_repairs = 0;
4254 PR_1_CRITICAL_METADATA_COLLISION,
4256 if ((ctx->options & E2F_OPT_NO) == 0)
4257 ctx->flags |= E2F_FLAG_RESTART_LATER;
4259 pctx->errcode = ext2fs_extent_get(ehandle,
4260 EXT2_EXTENT_DOWN, &extent);
4261 if (pctx->errcode &&
4262 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
4263 pctx->str = "EXT2_EXTENT_DOWN";
4264 problem = PR_1_EXTENT_HEADER_INVALID;
4265 if (!next_try_repairs)
4267 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
4268 goto report_problem;
4271 /* The next extent should match this index's logical start */
4272 if (extent.e_lblk != lblk) {
4273 struct ext2_extent_info e_info;
4275 pctx->errcode = ext2fs_extent_get_info(ehandle,
4277 if (pctx->errcode) {
4278 pctx->str = "ext2fs_extent_get_info";
4282 pctx->blk2 = extent.e_lblk;
4283 pctx->num = e_info.curr_level - 1;
4284 problem = PR_1_EXTENT_INDEX_START_INVALID;
4285 if (fix_problem(ctx, problem, pctx)) {
4286 e2fsck_pass1_fix_lock(ctx);
4287 pb->inode_modified = 1;
4289 ext2fs_extent_fix_parents(ehandle);
4290 e2fsck_pass1_fix_unlock(ctx);
4291 if (pctx->errcode) {
4292 pctx->str = "ext2fs_extent_fix_parents";
4297 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
4298 last_lblk, eof_block, ehandle,
4302 pctx->errcode = ext2fs_extent_get(ehandle,
4303 EXT2_EXTENT_UP, &extent);
4304 if (pctx->errcode) {
4305 pctx->str = "EXT2_EXTENT_UP";
4308 mark_block_used(ctx, blk);
4313 if ((pb->previous_block != 0) &&
4314 (pb->previous_block+1 != extent.e_pblk)) {
4315 if (ctx->options & E2F_OPT_FRAGCHECK) {
4320 else if (pb->is_reg)
4323 printf(("%6lu(%c): expecting %6lu "
4325 "phys %6lu log %lu len %lu\n"),
4326 (unsigned long) pctx->ino, type,
4327 (unsigned long) pb->previous_block+1,
4328 (unsigned long) extent.e_pblk,
4329 (unsigned long) extent.e_lblk,
4330 (unsigned long) extent.e_len);
4335 * If we notice a gap in the logical block mappings of an
4336 * extent-mapped directory, offer to close the hole by
4337 * moving the logical block down, otherwise we'll go mad in
4338 * pass 3 allocating empty directory blocks to fill the hole.
4340 if (try_repairs && is_dir &&
4341 pb->last_block + 1 < extent.e_lblk) {
4344 new_lblk = pb->last_block + 1;
4345 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
4346 new_lblk = ((new_lblk +
4347 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
4348 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
4350 EXT2FS_CLUSTER_MASK(ctx->fs));
4351 pctx->blk = extent.e_lblk;
4352 pctx->blk2 = new_lblk;
4353 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
4354 e2fsck_pass1_fix_lock(ctx);
4355 extent.e_lblk = new_lblk;
4356 pb->inode_modified = 1;
4357 pctx->errcode = ext2fs_extent_replace(ehandle,
4359 e2fsck_pass1_fix_unlock(ctx);
4360 if (pctx->errcode) {
4364 e2fsck_pass1_fix_lock(ctx);
4365 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4366 e2fsck_pass1_fix_unlock(ctx);
4368 goto failed_add_dir_block;
4369 pctx->errcode = ext2fs_extent_goto(ehandle,
4372 goto failed_add_dir_block;
4373 last_lblk = extent.e_lblk + extent.e_len - 1;
4379 while (++pb->last_db_block <
4380 (e2_blkcnt_t) extent.e_lblk) {
4381 pctx->errcode = ext2fs_add_dir_block2(
4385 if (pctx->errcode) {
4387 pctx->num = pb->last_db_block;
4388 goto failed_add_dir_block;
4392 for (i = 0; i < extent.e_len; i++) {
4393 pctx->errcode = ext2fs_add_dir_block2(
4398 if (pctx->errcode) {
4399 pctx->blk = extent.e_pblk + i;
4400 pctx->num = extent.e_lblk + i;
4401 failed_add_dir_block:
4402 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4403 /* Should never get here */
4404 ctx->flags |= E2F_FLAG_ABORT;
4408 if (extent.e_len > 0)
4409 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
4411 if (has_unaligned_cluster_map(ctx, pb->previous_block,
4415 for (i = 0; i < extent.e_len; i++) {
4416 pctx->blk = extent.e_lblk + i;
4417 pctx->blk2 = extent.e_pblk + i;
4418 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4419 mark_block_used(ctx, extent.e_pblk + i);
4420 mark_block_used(ctx, extent.e_pblk + i);
4425 * Check whether first cluster got marked in previous iteration.
4427 if (ctx->fs->cluster_ratio_bits &&
4428 pb->previous_block &&
4429 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
4430 EXT2FS_B2C(ctx->fs, pb->previous_block)))
4431 /* Set blk to the beginning of next cluster. */
4434 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
4436 /* Set blk to the beginning of current cluster. */
4437 blk = EXT2FS_C2B(ctx->fs,
4438 EXT2FS_B2C(ctx->fs, extent.e_pblk));
4440 if (blk < extent.e_pblk + extent.e_len) {
4441 mark_blocks_used(ctx, blk,
4442 extent.e_pblk + extent.e_len - blk);
4443 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
4444 EXT2FS_CLUSTER_RATIO(ctx->fs));
4445 pb->num_blocks += n;
4447 pb->last_block = extent.e_lblk + extent.e_len - 1;
4448 pb->previous_block = extent.e_pblk + extent.e_len - 1;
4449 start_block = pb->last_block = last_lblk;
4450 if (is_leaf && !is_dir &&
4451 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
4452 pb->last_init_lblock = last_lblk;
4454 pctx->errcode = ext2fs_extent_get(ehandle,
4455 EXT2_EXTENT_NEXT_SIB,
4459 /* Failed csum but passes checks? Ask to fix checksum. */
4461 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
4462 e2fsck_pass1_fix_lock(ctx);
4463 pb->inode_modified = 1;
4464 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4465 e2fsck_pass1_fix_unlock(ctx);
4470 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4474 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4475 struct process_block_struct *pb)
4477 struct ext2_extent_info info;
4478 struct ext2_inode *inode = pctx->inode;
4479 ext2_extent_handle_t ehandle;
4480 ext2_filsys fs = ctx->fs;
4481 ext2_ino_t ino = pctx->ino;
4484 struct ext3_extent_header *eh;
4486 /* Check for a proper extent header... */
4487 eh = (struct ext3_extent_header *) &inode->i_block[0];
4488 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4490 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4491 e2fsck_clear_inode(ctx, ino, inode, 0,
4492 "check_blocks_extents");
4497 /* ...since this function doesn't fail if i_block is zeroed. */
4498 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4499 if (pctx->errcode) {
4500 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4501 e2fsck_clear_inode(ctx, ino, inode, 0,
4502 "check_blocks_extents");
4507 retval = ext2fs_extent_get_info(ehandle, &info);
4509 int max_depth = info.max_depth;
4511 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4512 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4513 ctx->extent_depth_count[max_depth]++;
4516 /* Check maximum extent depth */
4517 pctx->blk = info.max_depth;
4518 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4519 if (pctx->blk2 < pctx->blk &&
4520 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4521 pb->eti.force_rebuild = 1;
4523 /* Can we collect extent tree level stats? */
4524 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4525 if (pctx->blk2 > pctx->blk)
4526 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4527 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4528 pb->eti.ino = pb->ino;
4530 pb->next_lblock = 0;
4532 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4533 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4534 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4535 if (pctx->errcode &&
4536 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4538 inode->i_blocks = 0;
4539 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4540 "check_blocks_extents");
4543 ext2fs_extent_free(ehandle);
4545 /* Rebuild unless it's a dir and we're rehashing it */
4546 if (LINUX_S_ISDIR(inode->i_mode) &&
4547 e2fsck_dir_will_be_rehashed(ctx, ino))
4550 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4551 e2fsck_rebuild_extents_later(ctx, ino);
4553 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4557 * In fact we don't need to check blocks for an inode with inline data
4558 * because this inode doesn't have any blocks. In this function all
4559 * we need to do is add this inode into dblist when it is a directory.
4561 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4562 struct process_block_struct *pb)
4565 size_t inline_data_size = 0;
4572 /* Process the dirents in i_block[] as the "first" block. */
4573 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4577 /* Process the dirents in the EA as a "second" block. */
4578 flags = ctx->fs->flags;
4579 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4580 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4582 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4583 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4584 if (pctx->errcode) {
4589 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4592 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4600 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4601 ctx->flags |= E2F_FLAG_ABORT;
4605 * This subroutine is called on each inode to account for all of the
4606 * blocks used by that inode.
4608 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4609 char *block_buf, const struct ea_quota *ea_ibody_quota)
4611 ext2_filsys fs = ctx->fs;
4612 struct process_block_struct pb;
4613 ext2_ino_t ino = pctx->ino;
4614 struct ext2_inode *inode = pctx->inode;
4615 unsigned bad_size = 0;
4616 int dirty_inode = 0;
4620 struct ea_quota ea_block_quota;
4623 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4624 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4626 pb.last_init_lblock = -1;
4627 pb.last_db_block = -1;
4628 pb.num_illegal_blocks = 0;
4629 pb.suppress = 0; pb.clear = 0;
4632 pb.previous_block = 0;
4633 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4634 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4635 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4639 pb.inode_modified = 0;
4640 pb.eti.force_rebuild = 0;
4644 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4645 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4647 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4648 if (e2fsck_should_abort(ctx))
4650 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4653 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4654 check_blocks_inline_data(ctx, pctx, &pb);
4655 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4656 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4657 check_blocks_extents(ctx, pctx, &pb);
4661 * If we've modified the inode, write it out before
4662 * iterate() tries to use it.
4665 e2fsck_write_inode(ctx, ino, inode,
4670 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4671 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4672 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4673 block_buf, process_block, &pb);
4675 * We do not have uninitialized extents in non extent
4678 pb.last_init_lblock = pb.last_block;
4680 * If iterate() changed a block mapping, we have to
4681 * re-read the inode. If we decide to clear the
4682 * inode after clearing some stuff, we'll re-write the
4683 * bad mappings into the inode!
4685 if (pb.inode_modified)
4686 e2fsck_read_inode(ctx, ino, inode,
4688 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4689 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4691 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4693 printf("bmap rebuild ino=%d\n", ino);
4695 if (!LINUX_S_ISDIR(inode->i_mode) ||
4696 !e2fsck_dir_will_be_rehashed(ctx, ino))
4697 e2fsck_rebuild_extents_later(ctx, ino);
4701 end_problem_latch(ctx, PR_LATCH_BLOCK);
4702 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4703 if (e2fsck_should_abort(ctx))
4706 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4708 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4709 if (LINUX_S_ISDIR(inode->i_mode))
4710 ctx->fs_fragmented_dir++;
4712 ctx->fs_fragmented++;
4716 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4721 if (inode->i_flags & EXT2_INDEX_FL) {
4722 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4723 inode->i_flags &= ~EXT2_INDEX_FL;
4726 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4730 if (!pb.num_blocks && pb.is_dir &&
4731 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4732 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4733 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4734 ctx->fs_directory_count--;
4739 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4740 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4741 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4742 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4744 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4745 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4746 ino, (ea_ibody_quota ?
4747 ea_ibody_quota->inodes : 0) +
4748 ea_block_quota.inodes + 1);
4751 if (!ext2fs_has_feature_huge_file(fs->super) ||
4752 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4753 pb.num_blocks *= (fs->blocksize / 512);
4754 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4756 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4757 ino, inode->i_size, (unsigned long long) pb.last_block,
4758 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4759 (unsigned long long) pb.num_blocks);
4761 size = EXT2_I_SIZE(inode);
4763 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4764 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4769 flags = ctx->fs->flags;
4770 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4771 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4773 ctx->fs->flags = (flags &
4774 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4776 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4777 if (err || sz != size) {
4781 } else if (size & (fs->blocksize - 1))
4783 else if (nblock > (pb.last_block + 1))
4785 else if (nblock < (pb.last_block + 1)) {
4786 if (((pb.last_block + 1) - nblock) >
4787 fs->super->s_prealloc_dir_blocks)
4791 if ((pb.last_init_lblock >= 0) &&
4792 /* Do not allow initialized allocated blocks past i_size*/
4793 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4794 !(inode->i_flags & EXT4_VERITY_FL))
4796 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4797 size > ext2_max_sizes[fs->super->s_log_block_size])
4798 /* too big for a direct/indirect-mapped file */
4800 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4802 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4803 /* too big for an extent-based file - 32bit ee_block */
4806 /* i_size for symlinks is checked elsewhere */
4807 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4808 /* Did inline_data set pctx->num earlier? */
4810 pctx->num = (pb.last_block + 1) * fs->blocksize;
4811 pctx->group = bad_size;
4812 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4813 ext2fs_inode_size_set(fs, inode, pctx->num);
4814 if (EXT2_I_SIZE(inode) == 0 &&
4815 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4816 memset(inode->i_block, 0,
4817 sizeof(inode->i_block));
4818 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4824 if (LINUX_S_ISREG(inode->i_mode) &&
4825 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4827 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4828 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4829 (ext2fs_has_feature_huge_file(fs->super) &&
4830 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4831 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4832 pctx->num = pb.num_blocks;
4833 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4834 inode->i_blocks = pb.num_blocks;
4835 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4842 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4843 * a block mapped file, so rebuild it as an extent file. We can skip
4844 * symlinks because they're never rewritten.
4846 if (ext2fs_has_feature_bigalloc(fs->super) &&
4847 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4848 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4849 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4850 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4851 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4852 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4857 if (ctx->dirs_to_hash && pb.is_dir &&
4858 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4859 !(inode->i_flags & EXT2_INDEX_FL) &&
4860 ((inode->i_size / fs->blocksize) >= 3))
4861 e2fsck_rehash_dir_later(ctx, ino);
4865 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4870 * Helper function called by process block when an illegal block is
4871 * found. It returns a description about why the block is illegal
4873 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4877 static char problem[80];
4879 super = fs->super->s_first_data_block;
4880 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4881 if (block < super) {
4882 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4884 } else if (block >= ext2fs_blocks_count(fs->super)) {
4885 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4888 for (i = 0; i < fs->group_desc_count; i++) {
4889 if (block == super) {
4890 sprintf(problem, "is the superblock in group %d", i);
4893 if (block > super &&
4894 block <= (super + fs->desc_blocks)) {
4895 sprintf(problem, "is in the group descriptors "
4899 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4900 sprintf(problem, "is the block bitmap of group %d", i);
4903 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4904 sprintf(problem, "is the inode bitmap of group %d", i);
4907 if (block >= ext2fs_inode_table_loc(fs, i) &&
4908 (block < ext2fs_inode_table_loc(fs, i)
4909 + fs->inode_blocks_per_group)) {
4910 sprintf(problem, "is in the inode table of group %d",
4914 super += fs->super->s_blocks_per_group;
4921 * This is a helper function for check_blocks().
4923 static int process_block(ext2_filsys fs,
4925 e2_blkcnt_t blockcnt,
4926 blk64_t ref_block EXT2FS_ATTR((unused)),
4927 int ref_offset EXT2FS_ATTR((unused)),
4930 struct process_block_struct *p;
4931 struct problem_context *pctx;
4932 blk64_t blk = *block_nr;
4934 problem_t problem = 0;
4937 p = (struct process_block_struct *) priv_data;
4942 * For a directory, add logical block zero for processing even if it's
4943 * not mapped or we'll be perennially stuck with broken "." and ".."
4946 if (p->is_dir && blockcnt == 0 && blk == 0) {
4947 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4948 if (pctx->errcode) {
4950 pctx->num = blockcnt;
4951 goto failed_add_dir_block;
4960 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4965 * Simplistic fragmentation check. We merely require that the
4966 * file be contiguous. (Which can never be true for really
4967 * big files that are greater than a block group.)
4969 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4970 if (p->previous_block+1 != blk) {
4971 if (ctx->options & E2F_OPT_FRAGCHECK) {
4979 printf(_("%6lu(%c): expecting %6lu "
4980 "got phys %6lu (blkcnt %lld)\n"),
4981 (unsigned long) pctx->ino, type,
4982 (unsigned long) p->previous_block+1,
4983 (unsigned long) blk,
4984 (long long) blockcnt);
4990 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4991 !pctx->inode->i_size_high &&
4992 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4993 problem = PR_1_TOOBIG_DIR;
4994 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4995 problem = PR_1_TOOBIG_DIR;
4996 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4997 problem = PR_1_TOOBIG_REG;
4998 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4999 problem = PR_1_TOOBIG_SYMLINK;
5001 if (blk < fs->super->s_first_data_block ||
5002 blk >= ext2fs_blocks_count(fs->super))
5003 problem = PR_1_ILLEGAL_BLOCK_NUM;
5006 * If this IND/DIND/TIND block is squatting atop some critical metadata
5007 * (group descriptors, superblock, bitmap, inode table), any write to
5008 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
5009 * fix that and restart fsck.
5012 p->ino != EXT2_RESIZE_INO &&
5013 blk < ctx->fs->super->s_blocks_count &&
5014 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
5016 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
5017 if ((ctx->options & E2F_OPT_NO) == 0)
5018 ctx->flags |= E2F_FLAG_RESTART_LATER;
5022 p->num_illegal_blocks++;
5024 * A bit of subterfuge here -- we're trying to fix a block
5025 * mapping, but the IND/DIND/TIND block could have collided
5026 * with some critical metadata. So, fix the in-core mapping so
5027 * iterate won't go insane, but return 0 instead of
5028 * BLOCK_CHANGED so that it won't write the remapping out to
5029 * our multiply linked block.
5031 * Even if we previously determined that an *IND block
5032 * conflicts with critical metadata, we must still try to
5033 * iterate the *IND block as if it is an *IND block to find and
5034 * mark the blocks it points to. Better to be overly cautious
5035 * with the used_blocks map so that we don't move the *IND
5036 * block to a block that's really in use!
5038 if (p->ino != EXT2_RESIZE_INO &&
5040 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
5045 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
5046 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
5050 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
5052 set_latch_flags(PR_LATCH_BLOCK,
5057 pctx->blkcount = blockcnt;
5058 if (fix_problem(ctx, problem, pctx)) {
5059 blk = *block_nr = 0;
5060 ret_code = BLOCK_CHANGED;
5061 p->inode_modified = 1;
5063 * If the directory block is too big and is beyond the
5064 * end of the FS, don't bother trying to add it for
5065 * processing -- the kernel would never have created a
5066 * directory this large, and we risk an ENOMEM abort.
5067 * In any case, the toobig handler for extent-based
5068 * directories also doesn't feed toobig blocks to
5071 if (problem == PR_1_TOOBIG_DIR)
5078 if (p->ino == EXT2_RESIZE_INO) {
5080 * The resize inode has already be sanity checked
5081 * during pass #0 (the superblock checks). All we
5082 * have to do is mark the double indirect block as
5083 * being in use; all of the other blocks are handled
5084 * by mark_table_blocks()).
5086 if (blockcnt == BLOCK_COUNT_DIND)
5087 mark_block_used(ctx, blk);
5089 } else if (!(ctx->fs->cluster_ratio_bits &&
5090 p->previous_block &&
5091 (EXT2FS_B2C(ctx->fs, blk) ==
5092 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
5093 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
5094 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
5095 mark_block_used(ctx, blk);
5097 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
5098 p->last_block, blk, blockcnt)) {
5099 pctx->blk = blockcnt;
5101 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
5102 mark_block_used(ctx, blk);
5103 mark_block_used(ctx, blk);
5106 p->last_block = blockcnt;
5107 p->previous_block = blk;
5109 if (p->is_dir && (blockcnt >= 0)) {
5110 while (++p->last_db_block < blockcnt) {
5111 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
5114 if (pctx->errcode) {
5116 pctx->num = p->last_db_block;
5117 goto failed_add_dir_block;
5120 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
5122 if (pctx->errcode) {
5124 pctx->num = blockcnt;
5125 failed_add_dir_block:
5126 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
5127 /* Should never get here */
5128 ctx->flags |= E2F_FLAG_ABORT;
5135 static int process_bad_block(ext2_filsys fs,
5137 e2_blkcnt_t blockcnt,
5138 blk64_t ref_block EXT2FS_ATTR((unused)),
5139 int ref_offset EXT2FS_ATTR((unused)),
5142 struct process_block_struct *p;
5143 blk64_t blk = *block_nr;
5144 blk64_t first_block;
5146 struct problem_context *pctx;
5152 p = (struct process_block_struct *) priv_data;
5156 pctx->ino = EXT2_BAD_INO;
5158 pctx->blkcount = blockcnt;
5160 if ((blk < fs->super->s_first_data_block) ||
5161 (blk >= ext2fs_blocks_count(fs->super))) {
5162 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
5164 return BLOCK_CHANGED;
5170 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
5172 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
5174 return BLOCK_CHANGED;
5176 } else if (is_blocks_used(ctx, blk, 1)) {
5178 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
5181 return BLOCK_CHANGED;
5183 if (e2fsck_should_abort(ctx))
5186 mark_block_used(ctx, blk);
5191 printf ("DEBUG: Marking %u as bad.\n", blk);
5193 ctx->fs_badblocks_count++;
5195 * If the block is not used, then mark it as used and return.
5196 * If it is already marked as found, this must mean that
5197 * there's an overlap between the filesystem table blocks
5198 * (bitmaps and inode table) and the bad block list.
5200 if (!is_blocks_used(ctx, blk, 1)) {
5201 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5205 * Try to find the where the filesystem block was used...
5207 first_block = fs->super->s_first_data_block;
5209 for (i = 0; i < fs->group_desc_count; i++ ) {
5212 if (!ext2fs_bg_has_super(fs, i))
5214 if (blk == first_block) {
5216 if (fix_problem(ctx,
5217 PR_1_BAD_PRIMARY_SUPERBLOCK,
5220 return BLOCK_CHANGED;
5224 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
5227 if ((blk > first_block) &&
5228 (blk <= first_block + fs->desc_blocks)) {
5230 pctx->blk = *block_nr;
5231 if (fix_problem(ctx,
5232 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
5234 return BLOCK_CHANGED;
5238 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
5242 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
5243 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
5244 ctx->invalid_block_bitmap_flag[i]++;
5245 ctx->invalid_bitmaps++;
5249 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
5250 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
5251 ctx->invalid_inode_bitmap_flag[i]++;
5252 ctx->invalid_bitmaps++;
5256 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
5257 (blk < (ext2fs_inode_table_loc(fs, i) +
5258 fs->inode_blocks_per_group))) {
5260 * If there are bad blocks in the inode table,
5261 * the inode scan code will try to do
5262 * something reasonable automatically.
5266 first_block += fs->super->s_blocks_per_group;
5269 * If we've gotten to this point, then the only
5270 * possibility is that the bad block inode meta data
5271 * is using a bad block.
5273 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
5274 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
5275 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
5277 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
5279 return BLOCK_CHANGED;
5281 if (e2fsck_should_abort(ctx))
5288 /* Warn user that the block wasn't claimed */
5289 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
5294 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
5295 const char *name, int num, blk64_t *new_block)
5297 ext2_filsys fs = ctx->fs;
5299 blk64_t old_block = *new_block;
5302 unsigned flexbg_size;
5305 struct problem_context pctx;
5307 clear_problem_context(&pctx);
5310 pctx.blk = old_block;
5314 * For flex_bg filesystems, first try to allocate the metadata
5315 * within the flex_bg, and if that fails then try finding the
5316 * space anywhere in the filesystem.
5318 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
5320 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
5321 flexbg = group / flexbg_size;
5322 first_block = ext2fs_group_first_block2(fs,
5323 flexbg_size * flexbg);
5324 last_grp = group | (flexbg_size - 1);
5325 if (last_grp >= fs->group_desc_count)
5326 last_grp = fs->group_desc_count - 1;
5327 last_block = ext2fs_group_last_block2(fs, last_grp);
5329 last_block = ext2fs_group_last_block2(fs, group);
5330 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
5331 num, ctx->block_found_map,
5333 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
5334 pctx.errcode = ext2fs_get_free_blocks2(fs,
5335 fs->super->s_first_data_block,
5336 ext2fs_blocks_count(fs->super),
5337 num, ctx->block_found_map, new_block);
5340 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
5341 ext2fs_unmark_valid(fs);
5342 ctx->flags |= E2F_FLAG_ABORT;
5345 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
5347 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
5348 ext2fs_unmark_valid(fs);
5349 ctx->flags |= E2F_FLAG_ABORT;
5352 ext2fs_mark_super_dirty(fs);
5353 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
5354 pctx.blk2 = *new_block;
5355 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
5356 PR_1_RELOC_TO), &pctx);
5358 for (i = 0; i < num; i++) {
5360 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
5362 pctx.errcode = io_channel_read_blk64(fs->io,
5363 old_block + i, 1, buf);
5365 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
5366 pctx.blk = (*new_block) + i;
5367 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
5370 pctx.blk = (*new_block) + i;
5371 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
5376 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
5378 ext2fs_free_mem(&buf);
5382 * This routine gets called at the end of pass 1 if bad blocks are
5383 * detected in the superblock, group descriptors, inode_bitmaps, or
5384 * block bitmaps. At this point, all of the blocks have been mapped
5385 * out, so we can try to allocate new block(s) to replace the bad
5388 static void handle_fs_bad_blocks(e2fsck_t ctx)
5390 ext2_filsys fs = ctx->fs;
5392 blk64_t first_block;
5395 for (i = 0; i < fs->group_desc_count; i++) {
5396 first_block = ext2fs_group_first_block2(fs, i);
5398 if (ctx->invalid_block_bitmap_flag[i]) {
5399 new_blk = ext2fs_block_bitmap_loc(fs, i);
5400 new_table_block(ctx, first_block, i, _("block bitmap"),
5402 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
5404 if (ctx->invalid_inode_bitmap_flag[i]) {
5405 new_blk = ext2fs_inode_bitmap_loc(fs, i);
5406 new_table_block(ctx, first_block, i, _("inode bitmap"),
5408 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
5410 if (ctx->invalid_inode_table_flag[i]) {
5411 new_blk = ext2fs_inode_table_loc(fs, i);
5412 new_table_block(ctx, first_block, i, _("inode table"),
5413 fs->inode_blocks_per_group,
5415 ext2fs_inode_table_loc_set(fs, i, new_blk);
5416 ctx->flags |= E2F_FLAG_RESTART;
5419 ctx->invalid_bitmaps = 0;
5423 * This routine marks all blocks which are used by the superblock,
5424 * group descriptors, inode bitmaps, and block bitmaps.
5426 static void mark_table_blocks(e2fsck_t ctx)
5428 ext2_filsys fs = ctx->fs;
5432 struct problem_context pctx;
5434 clear_problem_context(&pctx);
5436 for (i = 0; i < fs->group_desc_count; i++) {
5439 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
5440 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
5443 * Mark the blocks used for the inode table
5445 if (ext2fs_inode_table_loc(fs, i)) {
5446 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
5447 j < fs->inode_blocks_per_group;
5449 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5452 if (!ctx->invalid_inode_table_flag[i] &&
5454 PR_1_ITABLE_CONFLICT, &pctx)) {
5455 ctx->invalid_inode_table_flag[i]++;
5456 ctx->invalid_bitmaps++;
5459 ext2fs_mark_block_bitmap2(
5460 ctx->block_found_map, b);
5461 ext2fs_mark_block_bitmap2(
5462 ctx->block_metadata_map, b);
5468 * Mark block used for the block bitmap
5470 if (ext2fs_block_bitmap_loc(fs, i)) {
5471 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5472 ext2fs_block_bitmap_loc(fs, i))) {
5473 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5474 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5475 ctx->invalid_block_bitmap_flag[i]++;
5476 ctx->invalid_bitmaps++;
5479 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5480 ext2fs_block_bitmap_loc(fs, i));
5481 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5482 ext2fs_block_bitmap_loc(fs, i));
5486 * Mark block used for the inode bitmap
5488 if (ext2fs_inode_bitmap_loc(fs, i)) {
5489 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5490 ext2fs_inode_bitmap_loc(fs, i))) {
5491 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5492 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5493 ctx->invalid_inode_bitmap_flag[i]++;
5494 ctx->invalid_bitmaps++;
5497 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5498 ext2fs_inode_bitmap_loc(fs, i));
5499 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5500 ext2fs_inode_bitmap_loc(fs, i));
5507 * These subroutines short circuits ext2fs_get_blocks and
5508 * ext2fs_check_directory; we use them since we already have the inode
5509 * structure, so there's no point in letting the ext2fs library read
5512 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5515 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5518 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5519 return EXT2_ET_CALLBACK_NOTHANDLED;
5521 for (i=0; i < EXT2_N_BLOCKS; i++)
5522 blocks[i] = ctx->stashed_inode->i_block[i];
5526 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5527 struct ext2_inode *inode)
5529 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5531 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5532 return EXT2_ET_CALLBACK_NOTHANDLED;
5533 *inode = *ctx->stashed_inode;
5537 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5538 struct ext2_inode *inode)
5540 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5542 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5543 (inode != ctx->stashed_inode))
5544 *ctx->stashed_inode = *inode;
5545 return EXT2_ET_CALLBACK_NOTHANDLED;
5548 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5550 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5552 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5553 return EXT2_ET_CALLBACK_NOTHANDLED;
5555 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5556 return EXT2_ET_NO_DIRECTORY;
5560 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5563 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5567 if (ctx->block_found_map) {
5568 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5572 if (fs->block_map) {
5573 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5574 ext2fs_mark_bb_dirty(fs);
5577 if (!fs->block_map) {
5578 retval = ext2fs_read_block_bitmap(fs);
5583 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5592 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5593 blk64_t len, blk64_t *pblk, blk64_t *plen)
5595 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5598 if (ctx->block_found_map)
5599 return ext2fs_new_range(fs, flags, goal, len,
5600 ctx->block_found_map, pblk, plen);
5602 if (!fs->block_map) {
5603 retval = ext2fs_read_block_bitmap(fs);
5608 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5612 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5614 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5616 /* Never free a critical metadata block */
5617 if (ctx->block_found_map &&
5618 ctx->block_metadata_map &&
5620 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5623 if (ctx->block_found_map) {
5625 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5627 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5631 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5632 blk_t num, int inuse)
5634 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5636 /* Never free a critical metadata block */
5637 if (ctx->block_found_map &&
5638 ctx->block_metadata_map &&
5640 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5643 if (ctx->block_found_map) {
5645 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5648 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5653 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5655 ext2_filsys fs = ctx->fs;
5657 if (use_shortcuts) {
5658 fs->get_blocks = pass1_get_blocks;
5659 fs->check_directory = pass1_check_directory;
5660 fs->read_inode = pass1_read_inode;
5661 fs->write_inode = pass1_write_inode;
5662 ctx->stashed_ino = 0;
5665 fs->check_directory = 0;
5667 fs->write_inode = 0;
5671 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5673 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5674 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5675 e2fsck_block_alloc_stats, 0);
5676 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5677 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5678 e2fsck_block_alloc_stats_range, NULL);