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 if (e2fsck_should_abort(ctx))
1390 block_buf = (char *)e2fsck_allocate_memory(ctx, ctx->fs->blocksize * 3,
1391 "block interate buffer");
1392 reserve_block_for_root_repair(ctx);
1393 reserve_block_for_lnf_repair(ctx);
1396 * If any extended attribute blocks' reference counts need to
1397 * be adjusted, either up (ctx->refcount_extra), or down
1398 * (ctx->refcount), then fix them.
1400 if (ctx->refcount) {
1401 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1402 ea_refcount_free(ctx->refcount);
1405 if (ctx->refcount_extra) {
1406 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1408 ea_refcount_free(ctx->refcount_extra);
1409 ctx->refcount_extra = 0;
1412 if (ctx->invalid_bitmaps)
1413 handle_fs_bad_blocks(ctx);
1415 /* We don't need the block_ea_map any more */
1416 if (ctx->block_ea_map) {
1417 ext2fs_free_block_bitmap(ctx->block_ea_map);
1418 ctx->block_ea_map = 0;
1421 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1422 struct ext2_inode *inode;
1423 int inode_size = EXT2_INODE_SIZE(fs->super);
1424 inode = e2fsck_allocate_memory(ctx, inode_size,
1427 clear_problem_context(&pctx);
1428 pctx.errcode = ext2fs_create_resize_inode(fs);
1430 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1432 ctx->flags |= E2F_FLAG_ABORT;
1433 ext2fs_free_mem(&inode);
1434 ext2fs_free_mem(&block_buf);
1439 if (!pctx.errcode) {
1440 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1442 inode->i_mtime = ctx->now;
1443 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1446 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1447 ext2fs_free_mem(&inode);
1450 if (ctx->flags & E2F_FLAG_RESTART) {
1451 ext2fs_free_mem(&block_buf);
1455 if (ctx->block_dup_map) {
1456 if (!(ctx->flags & E2F_FLAG_DUP_BLOCK)) {
1457 ext2fs_free_mem(&block_buf);
1460 if (ctx->options & E2F_OPT_PREEN) {
1461 clear_problem_context(&pctx);
1462 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1464 e2fsck_pass1_dupblocks(ctx, block_buf);
1465 ext2fs_free_mem(&block_buf);
1466 ctx->flags &= ~E2F_FLAG_DUP_BLOCK;
1469 ctx->flags |= E2F_FLAG_ALLOC_OK;
1473 void e2fsck_pass1_run(e2fsck_t ctx)
1476 ext2_filsys fs = ctx->fs;
1478 struct ext2_inode *inode = NULL;
1479 ext2_inode_scan scan = NULL;
1480 char *block_buf = NULL;
1481 #ifdef RESOURCE_TRACK
1482 struct resource_track rtrack;
1484 unsigned char frag, fsize;
1485 struct problem_context pctx;
1486 struct scan_callback_struct scan_struct;
1487 struct ext2_super_block *sb = ctx->fs->super;
1489 const char *eop_next_inode = _("getting next inode from scan");
1490 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1491 int low_dtime_check = 1;
1492 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1493 unsigned int bufsize;
1494 int failed_csum = 0;
1495 ext2_ino_t ino_threshold = 0;
1496 dgrp_t ra_group = 0;
1497 struct ea_quota ea_ibody_quota;
1498 struct process_inode_block *inodes_to_process;
1499 int process_inode_count;
1501 init_resource_track(&rtrack, ctx->fs->io);
1502 clear_problem_context(&pctx);
1504 pass1_readahead(ctx, &ra_group, &ino_threshold);
1505 if (ext2fs_has_feature_dir_index(fs->super) &&
1506 !(ctx->options & E2F_OPT_NO)) {
1507 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1508 ctx->dirs_to_hash = 0;
1512 mtrace_print("Pass 1");
1515 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1516 extent_fs = ext2fs_has_feature_extents(sb);
1517 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1518 casefold_fs = ext2fs_has_feature_casefold(sb);
1521 * Allocate bitmaps structures
1523 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1524 EXT2FS_BMAP64_RBTREE,
1526 &ctx->inode_used_map);
1529 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1530 ctx->flags |= E2F_FLAG_ABORT;
1533 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1534 _("directory inode map"),
1535 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1536 EXT2FS_BMAP64_AUTODIR,
1537 "inode_dir_map", &ctx->inode_dir_map);
1540 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1541 ctx->flags |= E2F_FLAG_ABORT;
1544 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1545 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1546 "inode_reg_map", &ctx->inode_reg_map);
1549 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1550 ctx->flags |= E2F_FLAG_ABORT;
1555 e2fsck_allocate_inode_bitmap(fs,
1556 _("inode casefold map"),
1557 EXT2FS_BMAP64_RBTREE,
1558 "inode_casefold_map",
1559 &ctx->inode_casefold_map);
1562 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1563 ctx->flags |= E2F_FLAG_ABORT;
1567 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1568 &ctx->inode_link_info);
1570 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1571 ctx->flags |= E2F_FLAG_ABORT;
1574 bufsize = inode_size;
1575 if (bufsize < sizeof(struct ext2_inode_large))
1576 bufsize = sizeof(struct ext2_inode_large);
1577 inode = (struct ext2_inode *)
1578 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1580 inodes_to_process = (struct process_inode_block *)
1581 e2fsck_allocate_memory(ctx,
1582 (ctx->process_inode_size *
1583 sizeof(struct process_inode_block)),
1584 "array of inodes to process");
1585 process_inode_count = 0;
1587 pctx.errcode = ext2fs_init_dblist(fs, 0);
1589 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1590 ctx->flags |= E2F_FLAG_ABORT;
1595 * If the last orphan field is set, clear it, since the pass1
1596 * processing will automatically find and clear the orphans.
1597 * In the future, we may want to try using the last_orphan
1598 * linked list ourselves, but for now, we clear it so that the
1599 * ext3 mount code won't get confused.
1601 if (!(ctx->options & E2F_OPT_READONLY)) {
1602 if (fs->super->s_last_orphan) {
1603 fs->super->s_last_orphan = 0;
1604 ext2fs_mark_super_dirty(fs);
1608 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1609 "block interate buffer");
1610 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1611 e2fsck_use_inode_shortcuts(ctx, 1);
1612 e2fsck_intercept_block_allocations(ctx);
1613 old_op = ehandler_operation(_("opening inode scan"));
1614 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1616 ehandler_operation(old_op);
1618 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1619 ctx->flags |= E2F_FLAG_ABORT;
1622 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1623 EXT2_SF_WARN_GARBAGE_INODES, 0);
1624 ctx->stashed_inode = inode;
1625 scan_struct.ctx = ctx;
1626 scan_struct.block_buf = block_buf;
1627 scan_struct.inodes_to_process = inodes_to_process;
1628 scan_struct.process_inode_count = &process_inode_count;
1629 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1630 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1631 ctx->fs->group_desc_count)))
1633 if ((fs->super->s_wtime &&
1634 fs->super->s_wtime < fs->super->s_inodes_count) ||
1635 (fs->super->s_mtime &&
1636 fs->super->s_mtime < fs->super->s_inodes_count) ||
1637 (fs->super->s_mkfs_time &&
1638 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1639 low_dtime_check = 0;
1641 /* Set up ctx->lost_and_found if possible */
1642 (void) e2fsck_get_lost_and_found(ctx, 0);
1645 if (ctx->global_ctx) {
1646 if (ctx->options & E2F_OPT_DEBUG &&
1647 ctx->options & E2F_OPT_MULTITHREAD)
1648 fprintf(stderr, "thread %d jumping to group %d\n",
1649 ctx->thread_info.et_thread_index,
1650 ctx->thread_info.et_group_start);
1651 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1652 ctx->thread_info.et_group_start);
1654 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1655 ctx->flags |= E2F_FLAG_ABORT;
1662 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1663 if (e2fsck_mmp_update(fs))
1664 fatal_error(ctx, 0);
1666 old_op = ehandler_operation(eop_next_inode);
1667 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1669 if (ino > ino_threshold)
1670 pass1_readahead(ctx, &ra_group, &ino_threshold);
1671 ehandler_operation(old_op);
1672 if (e2fsck_should_abort(ctx))
1674 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1676 * If badblocks says badblocks is bad, offer to clear
1677 * the list, update the in-core bb list, and restart
1680 if (ino == EXT2_BAD_INO &&
1681 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1685 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1686 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1687 ctx->fs->badblocks = NULL;
1688 err = ext2fs_read_bb_inode(ctx->fs,
1689 &ctx->fs->badblocks);
1691 fix_problem(ctx, PR_1_ISCAN_ERROR,
1693 ctx->flags |= E2F_FLAG_ABORT;
1695 ctx->flags |= E2F_FLAG_RESTART;
1698 if (!ctx->inode_bb_map)
1700 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1701 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1704 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1707 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1708 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1709 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1710 ctx->flags |= E2F_FLAG_ABORT;
1716 if (ctx->global_ctx)
1717 ctx->thread_info.et_inode_number++;
1721 ctx->stashed_ino = ino;
1723 /* Clear trashed inode? */
1724 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1725 inode->i_links_count > 0 &&
1726 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1728 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1730 failed_csum = pctx.errcode != 0;
1733 * Check for inodes who might have been part of the
1734 * orphaned list linked list. They should have gotten
1735 * dealt with by now, unless the list had somehow been
1738 * FIXME: In the future, inodes which are still in use
1739 * (and which are therefore) pending truncation should
1740 * be handled specially. Right now we just clear the
1741 * dtime field, and the normal e2fsck handling of
1742 * inodes where i_size and the inode blocks are
1743 * inconsistent is to fix i_size, instead of releasing
1744 * the extra blocks. This won't catch the inodes that
1745 * was at the end of the orphan list, but it's better
1746 * than nothing. The right answer is that there
1747 * shouldn't be any bugs in the orphan list handling. :-)
1749 if (inode->i_dtime && low_dtime_check &&
1750 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1751 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1752 inode->i_dtime = inode->i_links_count ?
1754 e2fsck_write_inode(ctx, ino, inode,
1760 if (inode->i_links_count) {
1761 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1762 ino, inode->i_links_count);
1764 pctx.num = inode->i_links_count;
1765 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1766 ctx->flags |= E2F_FLAG_ABORT;
1769 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1770 !quota_inum_is_reserved(fs, ino)) {
1771 if (!inode->i_dtime && inode->i_mode) {
1772 if (fix_problem(ctx,
1773 PR_1_ZERO_DTIME, &pctx)) {
1774 inode->i_dtime = ctx->now;
1775 e2fsck_write_inode(ctx, ino, inode,
1780 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1784 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1785 ((!LINUX_S_ISDIR(inode->i_mode) &&
1786 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1788 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1789 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1790 e2fsck_write_inode(ctx, ino, inode, "pass1");
1793 /* Conflicting inlinedata/extents inode flags? */
1794 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1795 (inode->i_flags & EXT4_EXTENTS_FL)) {
1796 int res = fix_inline_data_extents_file(ctx, ino, inode,
1800 /* skip FINISH_INODE_LOOP */
1805 /* Test for incorrect inline_data flags settings. */
1806 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1807 (ino >= EXT2_FIRST_INODE(fs->super))) {
1810 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1811 if (!pctx.errcode &&
1812 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1813 e2fsck_pass1_fix_lock(ctx);
1814 ext2fs_set_feature_inline_data(sb);
1815 ext2fs_mark_super_dirty(fs);
1816 e2fsck_pass1_fix_unlock(ctx);
1818 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1819 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1820 /* skip FINISH_INODE_LOOP */
1825 /* Test for inline data flag but no attr */
1826 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1827 (ino >= EXT2_FIRST_INODE(fs->super))) {
1834 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1835 err = get_inline_data_ea_size(fs, ino, &size);
1836 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1837 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1841 /* Everything is awesome... */
1843 case EXT2_ET_BAD_EA_BLOCK_NUM:
1844 case EXT2_ET_BAD_EA_HASH:
1845 case EXT2_ET_BAD_EA_HEADER:
1846 case EXT2_ET_EA_BAD_NAME_LEN:
1847 case EXT2_ET_EA_BAD_VALUE_SIZE:
1848 case EXT2_ET_EA_KEY_NOT_FOUND:
1849 case EXT2_ET_EA_NO_SPACE:
1850 case EXT2_ET_MISSING_EA_FEATURE:
1851 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1852 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1853 case EXT2_ET_INLINE_DATA_NO_SPACE:
1854 case EXT2_ET_NO_INLINE_DATA:
1855 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1856 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1857 case EXT2_ET_EA_INODE_CORRUPTED:
1858 /* broken EA or no system.data EA; truncate */
1859 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1861 err = ext2fs_inode_size_set(fs, inode, 0);
1864 ctx->flags |= E2F_FLAG_ABORT;
1867 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1868 memset(&inode->i_block, 0,
1869 sizeof(inode->i_block));
1870 e2fsck_write_inode(ctx, ino, inode,
1876 /* Some other kind of non-xattr error? */
1878 ctx->flags |= E2F_FLAG_ABORT;
1884 * Test for incorrect extent flag settings.
1886 * On big-endian machines we must be careful:
1887 * When the inode is read, the i_block array is not swapped
1888 * if the extent flag is set. Therefore if we are testing
1889 * for or fixing a wrongly-set flag, we must potentially
1890 * (un)swap before testing, or after fixing.
1894 * In this case the extents flag was set when read, so
1895 * extent_header_verify is ok. If the inode is cleared,
1896 * no need to swap... so no extra swapping here.
1898 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1899 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1900 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1901 if ((ext2fs_extent_header_verify(inode->i_block,
1902 sizeof(inode->i_block)) == 0) &&
1903 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1904 e2fsck_pass1_fix_lock(ctx);
1905 ext2fs_set_feature_extents(sb);
1906 ext2fs_mark_super_dirty(fs);
1908 e2fsck_pass1_fix_unlock(ctx);
1909 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1911 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1912 if (ino == EXT2_BAD_INO)
1913 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1915 /* skip FINISH_INODE_LOOP */
1921 * For big-endian machines:
1922 * If the inode didn't have the extents flag set when it
1923 * was read, then the i_blocks array was swapped. To test
1924 * as an extents header, we must swap it back first.
1925 * IF we then set the extents flag, the entire i_block
1926 * array must be un/re-swapped to make it proper extents data.
1928 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1929 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1930 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1931 (LINUX_S_ISREG(inode->i_mode) ||
1932 LINUX_S_ISDIR(inode->i_mode))) {
1934 #ifdef WORDS_BIGENDIAN
1935 __u32 tmp_block[EXT2_N_BLOCKS];
1937 for (i = 0; i < EXT2_N_BLOCKS; i++)
1938 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1941 ehp = inode->i_block;
1943 if ((ext2fs_extent_header_verify(ehp,
1944 sizeof(inode->i_block)) == 0) &&
1945 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1946 inode->i_flags |= EXT4_EXTENTS_FL;
1947 #ifdef WORDS_BIGENDIAN
1948 memcpy(inode->i_block, tmp_block,
1949 sizeof(inode->i_block));
1951 e2fsck_write_inode(ctx, ino, inode, "pass1");
1956 if (ino == EXT2_BAD_INO) {
1957 struct process_block_struct pb;
1959 if ((failed_csum || inode->i_mode || inode->i_uid ||
1960 inode->i_gid || inode->i_links_count ||
1961 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1962 inode->i_file_acl) &&
1963 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1964 memset(inode, 0, sizeof(struct ext2_inode));
1965 e2fsck_write_inode(ctx, ino, inode,
1970 e2fsck_pass1_block_map_r_lock(ctx);
1971 pctx.errcode = ext2fs_copy_bitmap(ctx->global_ctx ?
1972 ctx->global_ctx->block_found_map :
1973 ctx->block_found_map, &pb.fs_meta_blocks);
1974 e2fsck_pass1_block_map_r_unlock(ctx);
1977 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1978 ctx->flags |= E2F_FLAG_ABORT;
1981 pb.ino = EXT2_BAD_INO;
1982 pb.num_blocks = pb.last_block = 0;
1983 pb.last_db_block = -1;
1984 pb.num_illegal_blocks = 0;
1985 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1986 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1990 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1991 block_buf, process_bad_block, &pb);
1992 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1994 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1995 ctx->flags |= E2F_FLAG_ABORT;
1999 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
2000 ctx->flags |= E2F_FLAG_ABORT;
2003 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2004 clear_problem_context(&pctx);
2005 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2007 } else if (ino == EXT2_ROOT_INO) {
2009 * Make sure the root inode is a directory; if
2010 * not, offer to clear it. It will be
2011 * regenerated in pass #3.
2013 if (!LINUX_S_ISDIR(inode->i_mode)) {
2014 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
2018 * If dtime is set, offer to clear it. mke2fs
2019 * version 0.2b created filesystems with the
2020 * dtime field set for the root and lost+found
2021 * directories. We won't worry about
2022 * /lost+found, since that can be regenerated
2023 * easily. But we will fix the root directory
2024 * as a special case.
2026 if (inode->i_dtime && inode->i_links_count) {
2027 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
2029 e2fsck_write_inode(ctx, ino, inode,
2034 } else if (ino == EXT2_JOURNAL_INO) {
2035 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2036 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
2037 if (!LINUX_S_ISREG(inode->i_mode) &&
2038 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
2040 inode->i_mode = LINUX_S_IFREG;
2041 e2fsck_write_inode(ctx, ino, inode,
2045 check_blocks(ctx, &pctx, block_buf, NULL);
2046 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2049 if ((inode->i_links_count ||
2050 inode->i_blocks || inode->i_block[0]) &&
2051 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
2053 memset(inode, 0, inode_size);
2054 ext2fs_icount_store(ctx->inode_link_info,
2056 e2fsck_write_inode_full(ctx, ino, inode,
2057 inode_size, "pass1");
2060 } else if (quota_inum_is_reserved(fs, ino)) {
2061 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2062 if (ext2fs_has_feature_quota(fs->super) &&
2063 quota_inum_is_super(fs->super, ino)) {
2064 if (!LINUX_S_ISREG(inode->i_mode) &&
2065 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
2067 inode->i_mode = LINUX_S_IFREG;
2068 e2fsck_write_inode(ctx, ino, inode,
2072 check_blocks(ctx, &pctx, block_buf, NULL);
2073 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2076 if ((inode->i_links_count ||
2077 inode->i_blocks || inode->i_block[0]) &&
2078 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
2080 memset(inode, 0, inode_size);
2081 ext2fs_icount_store(ctx->inode_link_info,
2083 e2fsck_write_inode_full(ctx, ino, inode,
2084 inode_size, "pass1");
2087 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
2088 problem_t problem = 0;
2090 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2091 if (ino == EXT2_BOOT_LOADER_INO) {
2092 if (LINUX_S_ISDIR(inode->i_mode))
2093 problem = PR_1_RESERVED_BAD_MODE;
2094 } else if (ino == EXT2_RESIZE_INO) {
2095 if (inode->i_mode &&
2096 !LINUX_S_ISREG(inode->i_mode))
2097 problem = PR_1_RESERVED_BAD_MODE;
2099 if (inode->i_mode != 0)
2100 problem = PR_1_RESERVED_BAD_MODE;
2103 if (fix_problem(ctx, problem, &pctx)) {
2105 e2fsck_write_inode(ctx, ino, inode,
2110 check_blocks(ctx, &pctx, block_buf, NULL);
2111 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2115 if (!inode->i_links_count) {
2116 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2120 * n.b. 0.3c ext2fs code didn't clear i_links_count for
2121 * deleted files. Oops.
2123 * Since all new ext2 implementations get this right,
2124 * we now assume that the case of non-zero
2125 * i_links_count and non-zero dtime means that we
2126 * should keep the file, not delete it.
2129 if (inode->i_dtime) {
2130 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
2132 e2fsck_write_inode(ctx, ino, inode, "pass1");
2137 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
2138 switch (fs->super->s_creator_os) {
2140 frag = inode->osd2.hurd2.h_i_frag;
2141 fsize = inode->osd2.hurd2.h_i_fsize;
2147 if (inode->i_faddr || frag || fsize ||
2148 (!ext2fs_has_feature_largedir(fs->super) &&
2149 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
2150 mark_inode_bad(ctx, ino);
2151 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2152 !ext2fs_has_feature_64bit(fs->super) &&
2153 inode->osd2.linux2.l_i_file_acl_high != 0)
2154 mark_inode_bad(ctx, ino);
2155 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
2156 !ext2fs_has_feature_huge_file(fs->super) &&
2157 (inode->osd2.linux2.l_i_blocks_hi != 0))
2158 mark_inode_bad(ctx, ino);
2159 if (inode->i_flags & EXT2_IMAGIC_FL) {
2161 if (!ctx->inode_imagic_map)
2162 alloc_imagic_map(ctx);
2163 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
2166 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
2167 inode->i_flags &= ~EXT2_IMAGIC_FL;
2168 e2fsck_write_inode(ctx, ino,
2175 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
2176 check_is_really_dir(ctx, &pctx, block_buf);
2179 * ext2fs_inode_has_valid_blocks2 does not actually look
2180 * at i_block[] values, so not endian-sensitive here.
2182 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
2183 LINUX_S_ISLNK(inode->i_mode) &&
2184 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
2185 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
2186 inode->i_flags &= ~EXT4_EXTENTS_FL;
2187 e2fsck_write_inode(ctx, ino, inode, "pass1");
2191 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
2192 add_encrypted_file(ctx, &pctx) < 0)
2195 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
2196 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
2198 if (LINUX_S_ISDIR(inode->i_mode)) {
2199 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
2200 e2fsck_add_dir_info(ctx, ino, 0);
2201 ctx->fs_directory_count++;
2202 if (inode->i_flags & EXT4_CASEFOLD_FL)
2203 add_casefolded_dir(ctx, ino);
2204 } else if (LINUX_S_ISREG (inode->i_mode)) {
2205 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
2206 ctx->fs_regular_count++;
2207 } else if (LINUX_S_ISCHR (inode->i_mode) &&
2208 e2fsck_pass1_check_device_inode(fs, inode)) {
2209 check_extents_inlinedata(ctx, &pctx);
2210 check_immutable(ctx, &pctx);
2211 check_size(ctx, &pctx);
2212 ctx->fs_chardev_count++;
2213 } else if (LINUX_S_ISBLK (inode->i_mode) &&
2214 e2fsck_pass1_check_device_inode(fs, inode)) {
2215 check_extents_inlinedata(ctx, &pctx);
2216 check_immutable(ctx, &pctx);
2217 check_size(ctx, &pctx);
2218 ctx->fs_blockdev_count++;
2219 } else if (LINUX_S_ISLNK (inode->i_mode) &&
2220 e2fsck_pass1_check_symlink(fs, ino, inode,
2222 check_immutable(ctx, &pctx);
2223 ctx->fs_symlinks_count++;
2224 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
2225 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2227 } else if (ext2fs_is_fast_symlink(inode)) {
2228 ctx->fs_fast_symlinks_count++;
2229 check_blocks(ctx, &pctx, block_buf,
2231 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2235 else if (LINUX_S_ISFIFO (inode->i_mode) &&
2236 e2fsck_pass1_check_device_inode(fs, inode)) {
2237 check_extents_inlinedata(ctx, &pctx);
2238 check_immutable(ctx, &pctx);
2239 check_size(ctx, &pctx);
2240 ctx->fs_fifo_count++;
2241 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
2242 e2fsck_pass1_check_device_inode(fs, inode)) {
2243 check_extents_inlinedata(ctx, &pctx);
2244 check_immutable(ctx, &pctx);
2245 check_size(ctx, &pctx);
2246 ctx->fs_sockets_count++;
2248 mark_inode_bad(ctx, ino);
2249 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2250 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
2251 if (inode->i_block[EXT2_IND_BLOCK])
2252 ctx->fs_ind_count++;
2253 if (inode->i_block[EXT2_DIND_BLOCK])
2254 ctx->fs_dind_count++;
2255 if (inode->i_block[EXT2_TIND_BLOCK])
2256 ctx->fs_tind_count++;
2258 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2259 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
2260 (inode->i_block[EXT2_IND_BLOCK] ||
2261 inode->i_block[EXT2_DIND_BLOCK] ||
2262 inode->i_block[EXT2_TIND_BLOCK] ||
2263 ext2fs_file_acl_block(fs, inode))) {
2264 struct process_inode_block *itp;
2266 itp = &inodes_to_process[process_inode_count];
2268 itp->ea_ibody_quota = ea_ibody_quota;
2269 if (inode_size < sizeof(struct ext2_inode_large))
2270 memcpy(&itp->inode, inode, inode_size);
2272 memcpy(&itp->inode, inode, sizeof(itp->inode));
2273 process_inode_count++;
2275 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2277 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2279 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2282 if (process_inode_count >= ctx->process_inode_size) {
2283 process_inodes(ctx, block_buf, inodes_to_process,
2284 &process_inode_count);
2286 if (e2fsck_should_abort(ctx))
2290 process_inodes(ctx, block_buf, inodes_to_process,
2291 &process_inode_count);
2292 ext2fs_close_inode_scan(scan);
2295 if (ctx->ea_block_quota_blocks) {
2296 ea_refcount_free(ctx->ea_block_quota_blocks);
2297 ctx->ea_block_quota_blocks = 0;
2300 if (ctx->ea_block_quota_inodes) {
2301 ea_refcount_free(ctx->ea_block_quota_inodes);
2302 ctx->ea_block_quota_inodes = 0;
2305 /* We don't need the encryption policy => ID map any more */
2306 destroy_encryption_policy_map(ctx);
2308 if (ctx->flags & E2F_FLAG_RESTART) {
2310 * Only the master copy of the superblock and block
2311 * group descriptors are going to be written during a
2312 * restart, so set the superblock to be used to be the
2313 * master superblock.
2315 ctx->use_superblock = 0;
2319 if (ctx->large_dirs && !ext2fs_has_feature_largedir(ctx->fs->super)) {
2320 ext2_filsys fs = ctx->fs;
2322 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2323 ext2fs_set_feature_largedir(fs->super);
2324 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2325 ext2fs_mark_super_dirty(fs);
2327 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2328 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2329 ext2fs_update_dynamic_rev(fs);
2330 ext2fs_mark_super_dirty(fs);
2334 ctx->flags |= E2F_FLAG_ALLOC_OK;
2335 ext2fs_free_mem(&inodes_to_process);
2337 e2fsck_use_inode_shortcuts(ctx, 0);
2338 ext2fs_free_mem(&inodes_to_process);
2339 inodes_to_process = 0;
2342 ext2fs_close_inode_scan(scan);
2344 ext2fs_free_mem(&block_buf);
2346 ext2fs_free_mem(&inode);
2349 * The l+f inode may have been cleared, so zap it now and
2350 * later passes will recalculate it if necessary
2352 ctx->lost_and_found = 0;
2354 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2355 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2357 ctx->invalid_bitmaps++;
2361 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2362 ext2fs_generic_bitmap *dest)
2366 ret = ext2fs_copy_bitmap(*src, dest);
2375 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2378 ext2fs_free_generic_bmap(*bitmap);
2384 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2385 ext2fs_generic_bitmap *dest)
2390 if (*dest == NULL) {
2394 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2404 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2409 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2410 dest->inode_map = NULL;
2411 dest->block_map = NULL;
2412 dest->badblocks = NULL;
2414 dest->dblist->fs = dest;
2415 if (src->block_map) {
2416 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2421 if (src->inode_map) {
2422 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2428 if (src->badblocks) {
2429 retval = ext2fs_badblocks_copy(src->badblocks,
2435 /* disable it for now */
2436 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2437 retval = ext2fs_open_channel(dest, src_context->io_options,
2438 src_context->io_manager,
2439 src_context->openfs_flags,
2440 src->io->block_size);
2444 /* Block size might not be default */
2445 io_channel_set_blksize(dest->io, src->io->block_size);
2446 ehandler_init(dest->io);
2448 assert(dest->io->magic == src->io->magic);
2449 assert(dest->io->manager == src->io->manager);
2450 assert(strcmp(dest->io->name, src->io->name) == 0);
2451 assert(dest->io->block_size == src->io->block_size);
2452 assert(dest->io->read_error == src->io->read_error);
2453 assert(dest->io->write_error == src->io->write_error);
2454 assert(dest->io->refcount == src->io->refcount);
2455 assert(dest->io->flags == src->io->flags);
2456 assert(dest->io->app_data == dest);
2457 assert(src->io->app_data == src);
2458 assert(dest->io->align == src->io->align);
2460 /* The data should be written to disk immediately */
2461 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2462 /* icache will be rebuilt if needed, so do not copy from @src */
2467 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2469 struct ext2_inode_cache *icache = dest->icache;
2470 errcode_t retval = 0;
2472 io_channel dest_image_io;
2473 ext2fs_inode_bitmap inode_map;
2474 ext2fs_block_bitmap block_map;
2475 ext2_badblocks_list badblocks;
2478 e2fsck_t dest_ctx = dest->priv_data;
2481 dest_image_io = dest->image_io;
2482 inode_map = dest->inode_map;
2483 block_map = dest->block_map;
2484 badblocks = dest->badblocks;
2485 dblist = dest->dblist;
2486 flags = dest->flags;
2488 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2490 dest->image_io = dest_image_io;
2491 dest->icache = icache;
2492 dest->inode_map = inode_map;
2493 dest->block_map = block_map;
2494 dest->badblocks = badblocks;
2495 dest->dblist = dblist;
2496 dest->priv_data = dest_ctx;
2498 dest->dblist->fs = dest;
2499 dest->flags = src->flags | flags;
2500 if (!(src->flags & EXT2_FLAG_VALID) || !(flags & EXT2_FLAG_VALID))
2501 ext2fs_unmark_valid(dest);
2504 ext2fs_free_inode_cache(src->icache);
2508 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2513 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2520 retval = ext2fs_merge_dblist(src->dblist,
2525 dest->dblist = src->dblist;
2526 dest->dblist->fs = dest;
2531 if (src->badblocks) {
2532 if (dest->badblocks == NULL)
2533 retval = ext2fs_badblocks_copy(src->badblocks,
2536 retval = ext2fs_badblocks_merge(src->badblocks,
2540 io_channel_close(src->io);
2542 ext2fs_free_generic_bmap(src->inode_map);
2544 ext2fs_free_generic_bmap(src->block_map);
2546 ext2fs_badblocks_list_free(src->badblocks);
2548 ext2fs_free_dblist(src->dblist);
2553 static void e2fsck_pass1_copy_invalid_bitmaps(e2fsck_t global_ctx,
2554 e2fsck_t thread_ctx)
2557 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2558 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2559 dgrp_t total = grp_end - grp_start;
2561 thread_ctx->invalid_inode_bitmap_flag =
2562 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2563 "invalid_inode_bitmap");
2564 thread_ctx->invalid_block_bitmap_flag =
2565 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2566 "invalid_block_bitmap");
2567 thread_ctx->invalid_inode_table_flag =
2568 e2fsck_allocate_memory(global_ctx, sizeof(int) * total,
2569 "invalid_inode_table");
2571 memcpy(thread_ctx->invalid_block_bitmap_flag,
2572 &global_ctx->invalid_block_bitmap_flag[grp_start],
2573 total * sizeof(int));
2574 memcpy(thread_ctx->invalid_inode_bitmap_flag,
2575 &global_ctx->invalid_inode_bitmap_flag[grp_start],
2576 total * sizeof(int));
2577 memcpy(thread_ctx->invalid_inode_table_flag,
2578 &global_ctx->invalid_inode_table_flag[grp_start],
2579 total * sizeof(int));
2581 thread_ctx->invalid_bitmaps = 0;
2582 for (i = grp_start, j = 0; i < grp_end; i++, j++) {
2583 if (thread_ctx->invalid_block_bitmap_flag[j])
2584 thread_ctx->invalid_bitmaps++;
2585 if (thread_ctx->invalid_inode_bitmap_flag[j])
2586 thread_ctx->invalid_bitmaps++;
2587 if (thread_ctx->invalid_inode_table_flag[j])
2588 thread_ctx->invalid_bitmaps++;
2592 static void e2fsck_pass1_merge_invalid_bitmaps(e2fsck_t global_ctx,
2593 e2fsck_t thread_ctx)
2596 dgrp_t grp_start = thread_ctx->thread_info.et_group_start;
2597 dgrp_t grp_end = thread_ctx->thread_info.et_group_end;
2598 dgrp_t total = grp_end - grp_start;
2600 memcpy(&global_ctx->invalid_block_bitmap_flag[grp_start],
2601 thread_ctx->invalid_block_bitmap_flag, total * sizeof(int));
2602 memcpy(&global_ctx->invalid_inode_bitmap_flag[grp_start],
2603 thread_ctx->invalid_inode_bitmap_flag, total * sizeof(int));
2604 memcpy(&global_ctx->invalid_inode_table_flag[grp_start],
2605 thread_ctx->invalid_inode_table_flag, total * sizeof(int));
2606 global_ctx->invalid_bitmaps += thread_ctx->invalid_bitmaps;
2609 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2610 int thread_index, int num_threads,
2611 dgrp_t average_group)
2614 e2fsck_t thread_context;
2615 ext2_filsys thread_fs;
2616 ext2_filsys global_fs = global_ctx->fs;
2617 struct e2fsck_thread *tinfo;
2619 assert(global_ctx->inode_used_map == NULL);
2620 assert(global_ctx->inode_dir_map == NULL);
2621 assert(global_ctx->inode_bb_map == NULL);
2622 assert(global_ctx->inode_imagic_map == NULL);
2623 assert(global_ctx->inode_reg_map == NULL);
2624 assert(global_ctx->inodes_to_rebuild == NULL);
2626 assert(global_ctx->block_found_map != NULL);
2627 assert(global_ctx->block_metadata_map != NULL);
2628 assert(global_ctx->block_dup_map != NULL);
2629 assert(global_ctx->block_ea_map == NULL);
2630 assert(global_ctx->fs->dblist == NULL);
2632 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2634 com_err(global_ctx->program_name, retval, "while allocating memory");
2637 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2638 thread_context->block_dup_map = NULL;
2640 retval = e2fsck_allocate_block_bitmap(global_ctx->fs,
2641 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
2642 "block_found_map", &thread_context->block_found_map);
2646 thread_context->global_ctx = global_ctx;
2647 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2649 com_err(global_ctx->program_name, retval, "while allocating memory");
2653 io_channel_flush_cleanup(global_fs->io);
2654 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2656 com_err(global_ctx->program_name, retval, "while copying fs");
2659 thread_fs->priv_data = thread_context;
2661 thread_context->thread_info.et_thread_index = thread_index;
2662 set_up_logging(thread_context);
2664 tinfo = &thread_context->thread_info;
2665 tinfo->et_group_start = average_group * thread_index;
2666 if (thread_index == global_fs->fs_num_threads - 1)
2667 tinfo->et_group_end = thread_fs->group_desc_count;
2669 tinfo->et_group_end = average_group * (thread_index + 1);
2670 tinfo->et_group_next = tinfo->et_group_start;
2671 tinfo->et_inode_number = 0;
2672 tinfo->et_log_buf[0] = '\0';
2673 tinfo->et_log_length = 0;
2674 if (thread_context->options & E2F_OPT_MULTITHREAD)
2675 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2676 tinfo->et_group_start, tinfo->et_group_end);
2677 thread_context->fs = thread_fs;
2678 retval = quota_init_context(&thread_context->qctx, thread_fs, 0);
2680 com_err(global_ctx->program_name, retval,
2681 "while init quota context");
2684 *thread_ctx = thread_context;
2685 e2fsck_pass1_copy_invalid_bitmaps(global_ctx, thread_context);
2688 ext2fs_free_mem(&thread_fs);
2690 if (thread_context->block_found_map)
2691 ext2fs_free_mem(&thread_context->block_found_map);
2692 ext2fs_free_mem(&thread_context);
2696 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2698 if (thread_ctx->dir_info == NULL)
2701 if (global_ctx->dir_info == NULL) {
2702 global_ctx->dir_info = thread_ctx->dir_info;
2703 thread_ctx->dir_info = NULL;
2707 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2708 global_ctx->dir_info);
2711 static void e2fsck_pass1_merge_dx_dir(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2713 if (thread_ctx->dx_dir_info == NULL)
2716 if (global_ctx->dx_dir_info == NULL) {
2717 global_ctx->dx_dir_info = thread_ctx->dx_dir_info;
2718 global_ctx->dx_dir_info_size = thread_ctx->dx_dir_info_size;
2719 global_ctx->dx_dir_info_count = thread_ctx->dx_dir_info_count;
2720 thread_ctx->dx_dir_info = NULL;
2724 e2fsck_merge_dx_dir(global_ctx, thread_ctx);
2727 static inline errcode_t
2728 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2729 ext2_icount_t *src_icount)
2732 if (*dest_icount == NULL) {
2733 *dest_icount = *src_icount;
2738 ret = ext2fs_icount_merge(*src_icount,
2748 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2752 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2753 &thread_ctx->inode_count);
2756 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2757 &thread_ctx->inode_link_info);
2762 static errcode_t e2fsck_pass1_merge_dirs_to_hash(e2fsck_t global_ctx,
2763 e2fsck_t thread_ctx)
2765 errcode_t retval = 0;
2767 if (!thread_ctx->dirs_to_hash)
2770 if (!global_ctx->dirs_to_hash)
2771 retval = ext2fs_badblocks_copy(thread_ctx->dirs_to_hash,
2772 &global_ctx->dirs_to_hash);
2774 retval = ext2fs_badblocks_merge(thread_ctx->dirs_to_hash,
2775 global_ctx->dirs_to_hash);
2780 static errcode_t e2fsck_pass1_merge_ea_inode_refs(e2fsck_t global_ctx,
2781 e2fsck_t thread_ctx)
2787 if (!thread_ctx->ea_inode_refs)
2790 if (!global_ctx->ea_inode_refs) {
2791 global_ctx->ea_inode_refs = thread_ctx->ea_inode_refs;
2792 thread_ctx->ea_inode_refs = NULL;
2796 ea_refcount_intr_begin(thread_ctx->ea_inode_refs);
2798 if ((blk = ea_refcount_intr_next(thread_ctx->ea_inode_refs,
2801 if (!global_ctx->block_ea_map ||
2802 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2804 retval = ea_refcount_store(global_ctx->ea_inode_refs,
2814 static ea_value_t ea_refcount_usage(e2fsck_t ctx, blk64_t blk,
2817 ea_value_t count_cur;
2818 ea_value_t count_extra = 0;
2819 ea_value_t count_orig;
2821 ea_refcount_fetch(ctx->refcount_orig, blk, &count_orig);
2822 ea_refcount_fetch(ctx->refcount, blk, &count_cur);
2823 /* most of time this is not needed */
2824 if (ctx->refcount_extra && count_cur == 0)
2825 ea_refcount_fetch(ctx->refcount_extra, blk, &count_extra);
2832 return count_orig + count_extra - count_cur;
2835 static errcode_t e2fsck_pass1_merge_ea_refcount(e2fsck_t global_ctx,
2836 e2fsck_t thread_ctx)
2840 errcode_t retval = 0;
2842 if (!thread_ctx->refcount)
2845 if (!global_ctx->refcount) {
2846 global_ctx->refcount = thread_ctx->refcount;
2847 thread_ctx->refcount = NULL;
2848 global_ctx->refcount_extra = thread_ctx->refcount;
2849 thread_ctx->refcount_extra = NULL;
2853 ea_refcount_intr_begin(thread_ctx->refcount);
2855 if ((blk = ea_refcount_intr_next(thread_ctx->refcount,
2859 * this EA has never seen before, so just store its
2860 * refcount and refcount_extra into global_ctx if needed.
2862 if (!global_ctx->block_ea_map ||
2863 !ext2fs_fast_test_block_bitmap2(global_ctx->block_ea_map,
2867 retval = ea_refcount_store(global_ctx->refcount,
2872 if (count > 0 || !thread_ctx->refcount_extra)
2874 ea_refcount_fetch(thread_ctx->refcount_extra, blk,
2879 if (!global_ctx->refcount_extra) {
2880 retval = ea_refcount_create(0,
2881 &global_ctx->refcount_extra);
2885 retval = ea_refcount_store(global_ctx->refcount_extra,
2891 ea_value_t thread_usage;
2892 ea_value_t global_usage;
2895 thread_usage = ea_refcount_usage(thread_ctx,
2897 global_usage = ea_refcount_usage(global_ctx,
2899 if (thread_usage + global_usage <= orig) {
2900 new = orig - thread_usage - global_usage;
2901 retval = ea_refcount_store(global_ctx->refcount,
2907 /* update it is as zero */
2908 retval = ea_refcount_store(global_ctx->refcount,
2912 /* Ooops, this EA was referenced more than it stated */
2913 if (!global_ctx->refcount_extra) {
2914 retval = ea_refcount_create(0,
2915 &global_ctx->refcount_extra);
2919 new = global_usage + thread_usage - orig;
2920 retval = ea_refcount_store(global_ctx->refcount_extra,
2930 static errcode_t e2fsck_pass1_merge_context(e2fsck_t global_ctx,
2931 e2fsck_t thread_ctx)
2933 ext2_filsys global_fs = global_ctx->fs;
2937 global_ctx->fs_directory_count += thread_ctx->fs_directory_count;
2938 global_ctx->fs_regular_count += thread_ctx->fs_regular_count;
2939 global_ctx->fs_blockdev_count += thread_ctx->fs_blockdev_count;
2940 global_ctx->fs_chardev_count += thread_ctx->fs_chardev_count;
2941 global_ctx->fs_links_count += thread_ctx->fs_links_count;
2942 global_ctx->fs_symlinks_count += thread_ctx->fs_symlinks_count;
2943 global_ctx->fs_fast_symlinks_count += thread_ctx->fs_fast_symlinks_count;
2944 global_ctx->fs_fifo_count += thread_ctx->fs_fifo_count;
2945 global_ctx->fs_total_count += thread_ctx->fs_total_count;
2946 global_ctx->fs_badblocks_count += thread_ctx->fs_badblocks_count;
2947 global_ctx->fs_sockets_count += thread_ctx->fs_sockets_count;
2948 global_ctx->fs_ind_count += thread_ctx->fs_ind_count;
2949 global_ctx->fs_dind_count += thread_ctx->fs_dind_count;
2950 global_ctx->fs_tind_count += thread_ctx->fs_tind_count;
2951 global_ctx->fs_fragmented += thread_ctx->fs_fragmented;
2952 global_ctx->fs_fragmented_dir += thread_ctx->fs_fragmented_dir;
2953 global_ctx->large_files += thread_ctx->large_files;
2954 /* threads might enable E2F_OPT_YES */
2955 global_ctx->options |= thread_ctx->options;
2956 global_ctx->flags |= thread_ctx->flags;
2958 * The l+f inode may have been cleared, so zap it now and
2959 * later passes will recalculate it if necessary
2961 global_ctx->lost_and_found = 0;
2962 /* merge extent depth count */
2963 for (i = 0; i < MAX_EXTENT_DEPTH_COUNT; i++)
2964 global_ctx->extent_depth_count[i] +=
2965 thread_ctx->extent_depth_count[i];
2967 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2968 e2fsck_pass1_merge_dx_dir(global_ctx, thread_ctx);
2970 retval = e2fsck_pass1_merge_fs(global_ctx->fs, thread_ctx->fs);
2972 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2975 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2977 com_err(global_ctx->program_name, 0,
2978 _("while merging icounts\n"));
2982 retval = e2fsck_pass1_merge_dirs_to_hash(global_ctx, thread_ctx);
2984 com_err(global_ctx->program_name, 0,
2985 _("while merging dirs to hash\n"));
2989 e2fsck_pass1_merge_ea_inode_refs(global_ctx, thread_ctx);
2990 e2fsck_pass1_merge_ea_refcount(global_ctx, thread_ctx);
2991 retval = quota_merge_and_update_usage(global_ctx->qctx,
2996 e2fsck_pass1_merge_invalid_bitmaps(global_ctx, thread_ctx);
2998 retval = e2fsck_pass1_merge_bitmap(global_fs,
2999 &thread_ctx->inode_used_map,
3000 &global_ctx->inode_used_map);
3004 retval = e2fsck_pass1_merge_bitmap(global_fs,
3005 &thread_ctx->inode_bad_map,
3006 &global_ctx->inode_bad_map);
3009 retval = e2fsck_pass1_merge_bitmap(global_fs,
3010 &thread_ctx->inode_dir_map,
3011 &global_ctx->inode_dir_map);
3014 retval = e2fsck_pass1_merge_bitmap(global_fs,
3015 &thread_ctx->inode_bb_map,
3016 &global_ctx->inode_bb_map);
3019 retval = e2fsck_pass1_merge_bitmap(global_fs,
3020 &thread_ctx->inode_imagic_map,
3021 &global_ctx->inode_imagic_map);
3024 retval = e2fsck_pass1_merge_bitmap(global_fs,
3025 &thread_ctx->inode_reg_map,
3026 &global_ctx->inode_reg_map);
3029 retval = e2fsck_pass1_merge_bitmap(global_fs,
3030 &thread_ctx->inodes_to_rebuild,
3031 &global_ctx->inodes_to_rebuild);
3034 retval = e2fsck_pass1_merge_bitmap(global_fs,
3035 &thread_ctx->block_ea_map,
3036 &global_ctx->block_ea_map);
3040 if (ext2fs_has_feature_shared_blocks(global_fs->super) &&
3041 !(global_ctx->options & E2F_OPT_UNSHARE_BLOCKS))
3044 * This need be done after merging block_ea_map
3045 * because ea block might be shared, we need exclude
3046 * them from dup blocks.
3048 e2fsck_pass1_block_map_w_lock(thread_ctx);
3049 retval = ext2fs_merge_bitmap(thread_ctx->block_found_map,
3050 global_ctx->block_found_map,
3051 global_ctx->block_dup_map,
3052 global_ctx->block_ea_map);
3053 e2fsck_pass1_block_map_w_unlock(thread_ctx);
3054 if (retval == EEXIST)
3055 global_ctx->flags |= E2F_FLAG_DUP_BLOCK;
3060 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
3064 retval = e2fsck_pass1_merge_context(global_ctx, thread_ctx);
3065 ext2fs_free_mem(&thread_ctx->fs);
3066 if (thread_ctx->logf)
3067 fclose(thread_ctx->logf);
3068 if (thread_ctx->problem_logf) {
3069 fputs("</problem_log>\n", thread_ctx->problem_logf);
3070 fclose(thread_ctx->problem_logf);
3072 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
3073 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
3074 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
3075 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
3076 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
3077 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
3078 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
3079 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
3080 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
3081 if (thread_ctx->refcount)
3082 ea_refcount_free(thread_ctx->refcount);
3083 if (thread_ctx->refcount_extra)
3084 ea_refcount_free(thread_ctx->refcount_extra);
3085 if (thread_ctx->ea_inode_refs)
3086 ea_refcount_free(thread_ctx->ea_inode_refs);
3087 if (thread_ctx->refcount_orig)
3088 ea_refcount_free(thread_ctx->refcount_orig);
3089 e2fsck_free_dir_info(thread_ctx);
3090 ext2fs_free_icount(thread_ctx->inode_count);
3091 ext2fs_free_icount(thread_ctx->inode_link_info);
3092 if (thread_ctx->dirs_to_hash)
3093 ext2fs_badblocks_list_free(thread_ctx->dirs_to_hash);
3094 quota_release_context(&thread_ctx->qctx);
3095 ext2fs_free_mem(&thread_ctx->invalid_block_bitmap_flag);
3096 ext2fs_free_mem(&thread_ctx->invalid_inode_bitmap_flag);
3097 ext2fs_free_mem(&thread_ctx->invalid_inode_table_flag);
3098 ext2fs_free_mem(&thread_ctx);
3103 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
3104 e2fsck_t global_ctx)
3109 struct e2fsck_thread_info *pinfo;
3110 int num_threads = global_ctx->fs_num_threads;
3112 /* merge invalid bitmaps will recalculate it */
3113 global_ctx->invalid_bitmaps = 0;
3114 for (i = 0; i < num_threads; i++) {
3117 if (!pinfo->eti_started)
3120 rc = pthread_join(pinfo->eti_thread_id, NULL);
3122 com_err(global_ctx->program_name, rc,
3123 _("while joining thread\n"));
3127 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
3129 com_err(global_ctx->program_name, rc,
3130 _("while joining pass1 thread\n"));
3140 static void *e2fsck_pass1_thread(void *arg)
3142 struct e2fsck_thread_info *info = arg;
3143 e2fsck_t thread_ctx = info->eti_thread_ctx;
3144 #ifdef DEBUG_THREADS
3145 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
3148 #ifdef DEBUG_THREADS
3149 pthread_mutex_lock(&thread_debug->etd_mutex);
3150 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
3151 pthread_cond_wait(&thread_debug->etd_cond,
3152 &thread_debug->etd_mutex);
3154 pthread_mutex_unlock(&thread_debug->etd_mutex);
3157 #ifdef HAVE_SETJMP_H
3159 * When fatal_error() happens, jump to here. The thread
3160 * context's flags will be saved, but its abort_loc will
3161 * be overwritten by original jump buffer for the later
3164 if (setjmp(thread_ctx->abort_loc)) {
3165 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
3168 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
3171 e2fsck_pass1_run(thread_ctx);
3174 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
3176 _("Scanned group range [%lu, %lu), inodes %lu\n"),
3177 thread_ctx->thread_info.et_group_start,
3178 thread_ctx->thread_info.et_group_end,
3179 thread_ctx->thread_info.et_inode_number);
3181 #ifdef DEBUG_THREADS
3182 pthread_mutex_lock(&thread_debug->etd_mutex);
3183 thread_debug->etd_finished_threads++;
3184 pthread_cond_broadcast(&thread_debug->etd_cond);
3185 pthread_mutex_unlock(&thread_debug->etd_mutex);
3191 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
3192 e2fsck_t global_ctx)
3194 struct e2fsck_thread_info *infos;
3195 pthread_attr_t attr;
3198 struct e2fsck_thread_info *tmp_pinfo;
3200 e2fsck_t thread_ctx;
3201 dgrp_t average_group;
3202 int num_threads = global_ctx->fs_num_threads;
3203 #ifdef DEBUG_THREADS
3204 struct e2fsck_thread_debug thread_debug =
3205 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
3207 thread_debug.etd_finished_threads = 0;
3210 retval = pthread_attr_init(&attr);
3212 com_err(global_ctx->program_name, retval,
3213 _("while setting pthread attribute\n"));
3217 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
3218 if (infos == NULL) {
3220 com_err(global_ctx->program_name, retval,
3221 _("while allocating memory for threads\n"));
3222 pthread_attr_destroy(&attr);
3226 average_group = ext2fs_get_avg_group(global_ctx->fs);
3227 for (i = 0; i < num_threads; i++) {
3228 tmp_pinfo = &infos[i];
3229 tmp_pinfo->eti_thread_index = i;
3230 #ifdef DEBUG_THREADS
3231 tmp_pinfo->eti_debug = &thread_debug;
3233 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
3237 com_err(global_ctx->program_name, retval,
3238 _("while preparing pass1 thread\n"));
3241 tmp_pinfo->eti_thread_ctx = thread_ctx;
3243 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
3244 &e2fsck_pass1_thread, tmp_pinfo);
3246 com_err(global_ctx->program_name, retval,
3247 _("while creating thread\n"));
3248 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
3252 tmp_pinfo->eti_started = 1;
3255 /* destroy the thread attribute object, since it is no longer needed */
3256 ret = pthread_attr_destroy(&attr);
3258 com_err(global_ctx->program_name, ret,
3259 _("while destroying thread attribute\n"));
3265 e2fsck_pass1_threads_join(infos, global_ctx);
3272 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
3274 struct e2fsck_thread_info *infos = NULL;
3277 retval = e2fsck_pass1_threads_start(&infos, global_ctx);
3279 com_err(global_ctx->program_name, retval,
3280 _("while starting pass1 threads\n"));
3284 retval = e2fsck_pass1_threads_join(infos, global_ctx);
3286 com_err(global_ctx->program_name, retval,
3287 _("while joining pass1 threads\n"));
3292 global_ctx->flags |= E2F_FLAG_ABORT;
3297 void e2fsck_pass1(e2fsck_t ctx)
3300 int need_single = 1;
3302 retval = e2fsck_pass1_prepare(ctx);
3306 if (ctx->fs_num_threads > 1 ||
3307 ctx->options & E2F_OPT_MULTITHREAD) {
3309 e2fsck_pass1_multithread(ctx);
3313 e2fsck_pass1_run(ctx);
3314 e2fsck_pass1_post(ctx);
3317 #undef FINISH_INODE_LOOP
3320 * When the inode_scan routines call this callback at the end of the
3321 * glock group, call process_inodes.
3323 static errcode_t scan_callback(ext2_filsys fs,
3324 ext2_inode_scan scan EXT2FS_ATTR((unused)),
3325 dgrp_t group, void * priv_data)
3327 struct scan_callback_struct *scan_struct;
3329 struct e2fsck_thread *tinfo;
3331 scan_struct = (struct scan_callback_struct *) priv_data;
3332 ctx = scan_struct->ctx;
3334 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
3335 scan_struct->inodes_to_process,
3336 scan_struct->process_inode_count);
3339 if ((ctx->progress)(ctx, 1, group+1,
3340 ctx->fs->group_desc_count))
3341 return EXT2_ET_CANCEL_REQUESTED;
3344 if (ctx->global_ctx) {
3345 tinfo = &ctx->thread_info;
3346 tinfo->et_group_next++;
3347 if (ctx->options & E2F_OPT_DEBUG &&
3348 ctx->options & E2F_OPT_MULTITHREAD)
3349 log_out(ctx, _("group %d finished\n"),
3350 tinfo->et_group_next);
3351 if (tinfo->et_group_next >= tinfo->et_group_end)
3352 return EXT2_ET_SCAN_FINISHED;
3360 * Process the inodes in the "inodes to process" list.
3362 static void process_inodes(e2fsck_t ctx, char *block_buf,
3363 struct process_inode_block *inodes_to_process,
3364 int *process_inode_count)
3367 struct ext2_inode *old_stashed_inode;
3368 ext2_ino_t old_stashed_ino;
3369 const char *old_operation;
3371 struct problem_context pctx;
3374 printf("begin process_inodes: ");
3376 if (*process_inode_count == 0)
3378 old_operation = ehandler_operation(0);
3379 old_stashed_inode = ctx->stashed_inode;
3380 old_stashed_ino = ctx->stashed_ino;
3381 qsort(inodes_to_process, *process_inode_count,
3382 sizeof(struct process_inode_block), process_inode_cmp);
3383 clear_problem_context(&pctx);
3384 for (i=0; i < *process_inode_count; i++) {
3385 pctx.inode = ctx->stashed_inode =
3386 (struct ext2_inode *) &inodes_to_process[i].inode;
3387 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
3390 printf("%u ", pctx.ino);
3392 sprintf(buf, _("reading indirect blocks of inode %u"),
3394 ehandler_operation(buf);
3395 check_blocks(ctx, &pctx, block_buf,
3396 &inodes_to_process[i].ea_ibody_quota);
3397 if (e2fsck_should_abort(ctx))
3400 ctx->stashed_inode = old_stashed_inode;
3401 ctx->stashed_ino = old_stashed_ino;
3402 *process_inode_count = 0;
3404 printf("end process inodes\n");
3406 ehandler_operation(old_operation);
3409 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
3411 const struct process_inode_block *ib_a =
3412 (const struct process_inode_block *) a;
3413 const struct process_inode_block *ib_b =
3414 (const struct process_inode_block *) b;
3417 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
3418 ib_b->inode.i_block[EXT2_IND_BLOCK]);
3421 * We only call process_inodes() for non-extent
3422 * inodes, so it's OK to pass NULL to
3423 * ext2fs_file_acl_block() here.
3425 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
3426 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
3428 ret = ib_a->ino - ib_b->ino;
3433 * Mark an inode as being bad in some what
3435 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
3437 struct problem_context pctx;
3439 if (!ctx->inode_bad_map) {
3440 clear_problem_context(&pctx);
3442 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3443 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3444 "inode_bad_map", &ctx->inode_bad_map);
3447 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3448 /* Should never get here */
3449 ctx->flags |= E2F_FLAG_ABORT;
3453 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3456 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
3458 struct problem_context pctx;
3460 if (!ctx->casefolded_dirs) {
3461 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3465 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3466 if (pctx.errcode == 0)
3469 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3470 /* Should never get here */
3471 ctx->flags |= E2F_FLAG_ABORT;
3475 * This procedure will allocate the inode "bb" (badblock) map table
3477 static void alloc_bb_map(e2fsck_t ctx)
3479 struct problem_context pctx;
3481 clear_problem_context(&pctx);
3482 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3483 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3484 "inode_bb_map", &ctx->inode_bb_map);
3487 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3488 /* Should never get here */
3489 ctx->flags |= E2F_FLAG_ABORT;
3495 * This procedure will allocate the inode imagic table
3497 static void alloc_imagic_map(e2fsck_t ctx)
3499 struct problem_context pctx;
3501 clear_problem_context(&pctx);
3502 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3503 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3504 "inode_imagic_map", &ctx->inode_imagic_map);
3507 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3508 /* Should never get here */
3509 ctx->flags |= E2F_FLAG_ABORT;
3515 * Marks a block as in use, setting the dup_map if it's been set
3516 * already. Called by process_block and process_bad_block.
3518 * WARNING: Assumes checks have already been done to make sure block
3519 * is valid. This is true in both process_block and process_bad_block.
3521 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3523 struct problem_context pctx;
3524 e2fsck_t global_ctx = ctx->global_ctx ? ctx->global_ctx : ctx;
3526 clear_problem_context(&pctx);
3528 if (is_blocks_used(ctx, block, 1)) {
3529 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3530 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3533 ctx->flags |= E2F_FLAG_DUP_BLOCK;
3534 e2fsck_pass1_block_map_w_lock(ctx);
3535 ext2fs_fast_mark_block_bitmap2(global_ctx->block_dup_map, block);
3536 e2fsck_pass1_block_map_w_unlock(ctx);
3538 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3543 * When cluster size is greater than one block, it is caller's responsibility
3544 * to make sure block parameter starts at a cluster boundary.
3546 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3549 if (!is_blocks_used(ctx, block, num)) {
3550 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3554 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3555 mark_block_used(ctx, block + i);
3559 static errcode_t _INLINE_ e2fsck_write_ext_attr3(e2fsck_t ctx, blk64_t block,
3560 void *inbuf, ext2_ino_t inum)
3563 ext2_filsys fs = ctx->fs;
3565 e2fsck_pass1_fix_lock(ctx);
3566 retval = ext2fs_write_ext_attr3(fs, block, inbuf, inum);
3567 e2fsck_pass1_fix_unlock(ctx);
3572 * Adjust the extended attribute block's reference counts at the end
3573 * of pass 1, either by subtracting out references for EA blocks that
3574 * are still referenced in ctx->refcount, or by adding references for
3575 * EA blocks that had extra references as accounted for in
3576 * ctx->refcount_extra.
3578 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3579 char *block_buf, int adjust_sign)
3581 struct ext2_ext_attr_header *header;
3582 struct problem_context pctx;
3583 ext2_filsys fs = ctx->fs;
3588 clear_problem_context(&pctx);
3590 ea_refcount_intr_begin(refcount);
3592 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3595 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3598 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3601 header = (struct ext2_ext_attr_header *) block_buf;
3602 pctx.blkcount = header->h_refcount;
3603 should_be = header->h_refcount + adjust_sign * (int)count;
3604 pctx.num = should_be;
3605 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3606 header->h_refcount = should_be;
3607 pctx.errcode = e2fsck_write_ext_attr3(ctx, blk,
3611 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3620 * Handle processing the extended attribute blocks
3622 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3623 char *block_buf, struct ea_quota *ea_block_quota)
3625 ext2_filsys fs = ctx->fs;
3626 ext2_ino_t ino = pctx->ino;
3627 struct ext2_inode *inode = pctx->inode;
3630 struct ext2_ext_attr_header *header;
3631 struct ext2_ext_attr_entry *first, *entry;
3632 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3633 __u64 quota_inodes = 0;
3634 region_t region = 0;
3635 int failed_csum = 0;
3637 ea_block_quota->blocks = 0;
3638 ea_block_quota->inodes = 0;
3640 blk = ext2fs_file_acl_block(fs, inode);
3645 * If the Extended attribute flag isn't set, then a non-zero
3646 * file acl means that the inode is corrupted.
3648 * Or if the extended attribute block is an invalid block,
3649 * then the inode is also corrupted.
3651 if (!ext2fs_has_feature_xattr(fs->super) ||
3652 (blk < fs->super->s_first_data_block) ||
3653 (blk >= ext2fs_blocks_count(fs->super))) {
3654 mark_inode_bad(ctx, ino);
3658 /* If ea bitmap hasn't been allocated, create it */
3659 if (!ctx->block_ea_map) {
3660 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3661 _("ext attr block map"),
3662 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3663 &ctx->block_ea_map);
3664 if (pctx->errcode) {
3666 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3667 ctx->flags |= E2F_FLAG_ABORT;
3672 /* Create the EA refcount structure if necessary */
3673 if (!ctx->refcount) {
3674 pctx->errcode = ea_refcount_create(0,
3675 &ctx->refcount_orig);
3676 if (pctx->errcode) {
3678 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3679 ctx->flags |= E2F_FLAG_ABORT;
3683 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3684 if (pctx->errcode) {
3686 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3687 ctx->flags |= E2F_FLAG_ABORT;
3693 /* Debugging text */
3694 printf("Inode %u has EA block %u\n", ino, blk);
3697 /* Have we seen this EA block before? */
3698 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3699 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3700 ea_block_quota->inodes = 0;
3702 if (ctx->ea_block_quota_blocks) {
3703 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3706 ea_block_quota->blocks = quota_blocks;
3709 if (ctx->ea_block_quota_inodes)
3710 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3711 &ea_block_quota->inodes);
3713 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3715 /* Ooops, this EA was referenced more than it stated */
3716 if (!ctx->refcount_extra) {
3717 pctx->errcode = ea_refcount_create(0,
3718 &ctx->refcount_extra);
3719 if (pctx->errcode) {
3721 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3722 ctx->flags |= E2F_FLAG_ABORT;
3726 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3731 * OK, we haven't seen this EA block yet. So we need to
3735 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3736 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3739 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3742 if (pctx->errcode &&
3743 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3747 header = (struct ext2_ext_attr_header *) block_buf;
3748 pctx->blk = ext2fs_file_acl_block(fs, inode);
3749 if (((ctx->ext_attr_ver == 1) &&
3750 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3751 ((ctx->ext_attr_ver == 2) &&
3752 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3753 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3757 if (header->h_blocks != 1) {
3758 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3762 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3765 region = region_create(0, fs->blocksize);
3767 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3768 ctx->flags |= E2F_FLAG_ABORT;
3771 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3772 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3776 first = (struct ext2_ext_attr_entry *)(header+1);
3777 end = block_buf + fs->blocksize;
3779 while ((char *)entry < end && *(__u32 *)entry) {
3782 if (region_allocate(region, (char *)entry - (char *)header,
3783 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3784 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3788 if ((ctx->ext_attr_ver == 1 &&
3789 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3790 (ctx->ext_attr_ver == 2 &&
3791 entry->e_name_index == 0)) {
3792 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3796 if (entry->e_value_inum == 0) {
3797 if (entry->e_value_offs + entry->e_value_size >
3799 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3803 if (entry->e_value_size &&
3804 region_allocate(region, entry->e_value_offs,
3805 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3806 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3811 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3812 entry->e_value_offs);
3814 if (entry->e_hash != hash) {
3815 pctx->num = entry->e_hash;
3816 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3818 entry->e_hash = hash;
3822 blk64_t entry_quota_blocks;
3824 problem = check_large_ea_inode(ctx, entry, pctx,
3825 &entry_quota_blocks);
3826 if (problem && fix_problem(ctx, problem, pctx))
3829 quota_blocks += entry_quota_blocks;
3833 entry = EXT2_EXT_ATTR_NEXT(entry);
3835 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3836 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3839 region_free(region);
3842 * We only get here if there was no other errors that were fixed.
3843 * If there was a checksum fail, ask to correct it.
3846 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3847 pctx->errcode = e2fsck_write_ext_attr3(ctx, blk, block_buf,
3853 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3854 if (!ctx->ea_block_quota_blocks) {
3855 pctx->errcode = ea_refcount_create(0,
3856 &ctx->ea_block_quota_blocks);
3857 if (pctx->errcode) {
3862 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3867 if (!ctx->ea_block_quota_inodes) {
3868 pctx->errcode = ea_refcount_create(0,
3869 &ctx->ea_block_quota_inodes);
3870 if (pctx->errcode) {
3873 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3874 ctx->flags |= E2F_FLAG_ABORT;
3879 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3882 ea_block_quota->blocks = quota_blocks;
3883 ea_block_quota->inodes = quota_inodes;
3885 inc_ea_inode_refs(ctx, pctx, first, end);
3886 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3887 ea_refcount_store(ctx->refcount_orig, blk, header->h_refcount);
3889 * It might be racy that this block has been merged in the
3892 if (!is_blocks_used(ctx, blk, 1))
3893 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, blk);
3894 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3899 region_free(region);
3900 ext2fs_file_acl_block_set(fs, inode, 0);
3901 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3905 /* Returns 1 if bad htree, 0 if OK */
3906 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3907 ext2_ino_t ino, struct ext2_inode *inode,
3910 struct ext2_dx_root_info *root;
3911 ext2_filsys fs = ctx->fs;
3915 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3916 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3917 (!ext2fs_has_feature_dir_index(fs->super) &&
3918 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3921 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3923 if ((pctx->errcode) ||
3925 (blk < fs->super->s_first_data_block) ||
3926 (blk >= ext2fs_blocks_count(fs->super))) {
3927 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3933 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3934 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3937 /* XXX should check that beginning matches a directory */
3938 root = (struct ext2_dx_root_info *) (block_buf + 24);
3940 if ((root->reserved_zero || root->info_length < 8) &&
3941 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3944 pctx->num = root->hash_version;
3945 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3946 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3947 (root->hash_version != EXT2_HASH_TEA) &&
3948 (root->hash_version != EXT2_HASH_SIPHASH) &&
3949 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3952 if (ext4_hash_in_dirent(inode)) {
3953 if (root->hash_version != EXT2_HASH_SIPHASH &&
3954 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3957 if (root->hash_version == EXT2_HASH_SIPHASH &&
3958 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3962 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3963 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3966 pctx->num = root->indirect_levels;
3967 /* if htree level is clearly too high, consider it to be broken */
3968 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3969 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3972 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3973 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3974 !ext2fs_has_feature_largedir(fs->super)) {
3975 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3976 int idx_pb = 1 << (blockbits - 3);
3978 /* compare inode size/blocks vs. max-sized 2-level htree */
3979 if (EXT2_I_SIZE(pctx->inode) <
3980 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3981 pctx->inode->i_blocks <
3982 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3983 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3987 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3988 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3994 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3995 struct ext2_inode *inode, int restart_flag,
3999 inode->i_links_count = 0;
4000 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
4001 inode->i_dtime = ctx->now;
4004 * If a special inode has such rotten block mappings that we
4005 * want to clear the whole inode, be sure to actually zap
4006 * the block maps because i_links_count isn't checked for
4007 * special inodes, and we'll end up right back here the next
4010 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
4011 memset(inode->i_block, 0, sizeof(inode->i_block));
4013 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
4014 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
4015 if (ctx->inode_reg_map)
4016 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
4017 if (ctx->inode_bad_map)
4018 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
4021 * If the inode was partially accounted for before processing
4022 * was aborted, we need to restart the pass 1 scan.
4024 ctx->flags |= restart_flag;
4026 if (ino == EXT2_BAD_INO)
4027 memset(inode, 0, sizeof(struct ext2_inode));
4029 e2fsck_write_inode(ctx, ino, inode, source);
4033 * Use the multiple-blocks reclamation code to fix alignment problems in
4034 * a bigalloc filesystem. We want a logical cluster to map to *only* one
4035 * physical cluster, and we want the block offsets within that cluster to
4038 static int has_unaligned_cluster_map(e2fsck_t ctx,
4039 blk64_t last_pblk, blk64_t last_lblk,
4040 blk64_t pblk, blk64_t lblk)
4042 blk64_t cluster_mask;
4044 if (!ctx->fs->cluster_ratio_bits)
4046 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
4049 * If the block in the logical cluster doesn't align with the block in
4050 * the physical cluster...
4052 if ((lblk & cluster_mask) != (pblk & cluster_mask))
4056 * If we cross a physical cluster boundary within a logical cluster...
4058 if (last_pblk && (lblk & cluster_mask) != 0 &&
4059 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
4060 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
4066 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
4067 struct process_block_struct *pb,
4068 blk64_t start_block, blk64_t end_block,
4070 ext2_extent_handle_t ehandle,
4073 struct ext2fs_extent extent;
4074 blk64_t blk, last_lblk;
4076 int is_dir, is_leaf;
4078 struct ext2_extent_info info;
4079 int failed_csum = 0;
4081 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
4084 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
4087 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
4088 !pb->eti.force_rebuild) {
4089 struct extent_tree_level *etl;
4091 etl = pb->eti.ext_info + info.curr_level;
4092 etl->num_extents += info.num_entries;
4093 etl->max_extents += info.max_entries;
4095 * Implementation wart: Splitting extent blocks when appending
4096 * will leave the old block with one free entry. Therefore
4097 * unless the node is totally full, pretend that a non-root
4098 * extent block can hold one fewer entry than it actually does,
4099 * so that we don't repeatedly rebuild the extent tree.
4101 if (info.curr_level && info.num_entries < info.max_entries)
4105 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
4107 while ((pctx->errcode == 0 ||
4108 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
4109 info.num_entries-- > 0) {
4110 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
4111 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
4112 last_lblk = extent.e_lblk + extent.e_len - 1;
4115 pctx->blk = extent.e_pblk;
4116 pctx->blk2 = extent.e_lblk;
4117 pctx->num = extent.e_len;
4118 pctx->blkcount = extent.e_lblk + extent.e_len;
4120 if (extent.e_pblk == 0 ||
4121 extent.e_pblk < ctx->fs->super->s_first_data_block ||
4122 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
4123 problem = PR_1_EXTENT_BAD_START_BLK;
4124 else if (extent.e_lblk < start_block)
4125 problem = PR_1_OUT_OF_ORDER_EXTENTS;
4126 else if ((end_block && last_lblk > end_block) &&
4127 !(last_lblk > eof_block &&
4128 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
4129 (pctx->inode->i_flags & EXT4_VERITY_FL))))
4130 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
4131 else if (is_leaf && extent.e_len == 0)
4132 problem = PR_1_EXTENT_LENGTH_ZERO;
4134 (extent.e_pblk + extent.e_len) >
4135 ext2fs_blocks_count(ctx->fs->super))
4136 problem = PR_1_EXTENT_ENDS_BEYOND;
4137 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
4138 !ext2fs_has_feature_largedir(ctx->fs->super) &&
4139 ((extent.e_lblk + extent.e_len) >
4140 (1U << (21 - ctx->fs->super->s_log_block_size))))
4141 problem = PR_1_TOOBIG_DIR;
4143 if (is_leaf && problem == 0 && extent.e_len > 0) {
4145 printf("extent_region(ino=%u, expect=%llu, "
4146 "lblk=%llu, len=%u)\n", pb->ino,
4147 (unsigned long long) pb->next_lblock,
4148 (unsigned long long) extent.e_lblk,
4151 if (extent.e_lblk < pb->next_lblock)
4152 problem = PR_1_EXTENT_COLLISION;
4153 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
4154 pb->next_lblock = extent.e_lblk + extent.e_len;
4158 * Uninitialized blocks in a directory? Clear the flag and
4159 * we'll interpret the blocks later.
4161 if (try_repairs && is_dir && problem == 0 &&
4162 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4163 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
4164 e2fsck_pass1_fix_lock(ctx);
4165 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4166 pb->inode_modified = 1;
4167 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4169 e2fsck_pass1_fix_unlock(ctx);
4174 #ifdef CONFIG_DEVELOPER_FEATURES
4175 if (try_repairs && !is_dir && problem == 0 &&
4176 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
4177 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
4178 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
4179 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
4180 pb->inode_modified = 1;
4181 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
4188 if (try_repairs && problem) {
4190 if (fix_problem(ctx, problem, pctx)) {
4191 if (ctx->invalid_bitmaps) {
4193 * If fsck knows the bitmaps are bad,
4194 * skip to the next extent and
4195 * try to clear this extent again
4196 * after fixing the bitmaps, by
4199 pctx->errcode = ext2fs_extent_get(
4201 EXT2_EXTENT_NEXT_SIB,
4203 ctx->flags |= E2F_FLAG_RESTART_LATER;
4204 if (pctx->errcode ==
4205 EXT2_ET_NO_CURRENT_NODE) {
4211 e2fsck_pass1_fix_lock(ctx);
4212 e2fsck_read_bitmaps(ctx);
4213 pb->inode_modified = 1;
4215 ext2fs_extent_delete(ehandle, 0);
4216 e2fsck_pass1_fix_unlock(ctx);
4217 if (pctx->errcode) {
4218 pctx->str = "ext2fs_extent_delete";
4221 e2fsck_pass1_fix_lock(ctx);
4222 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4223 e2fsck_pass1_fix_unlock(ctx);
4224 if (pctx->errcode &&
4225 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
4226 pctx->str = "ext2fs_extent_fix_parents";
4229 pctx->errcode = ext2fs_extent_get(ehandle,
4230 EXT2_EXTENT_CURRENT,
4232 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
4243 blk64_t lblk = extent.e_lblk;
4244 int next_try_repairs = 1;
4246 blk = extent.e_pblk;
4249 * If this lower extent block collides with critical
4250 * metadata, don't try to repair the damage. Pass 1b
4251 * will reallocate the block; then we can try again.
4253 if (pb->ino != EXT2_RESIZE_INO &&
4254 extent.e_pblk < ctx->fs->super->s_blocks_count &&
4255 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4257 next_try_repairs = 0;
4260 PR_1_CRITICAL_METADATA_COLLISION,
4262 if ((ctx->options & E2F_OPT_NO) == 0)
4263 ctx->flags |= E2F_FLAG_RESTART_LATER;
4265 pctx->errcode = ext2fs_extent_get(ehandle,
4266 EXT2_EXTENT_DOWN, &extent);
4267 if (pctx->errcode &&
4268 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
4269 pctx->str = "EXT2_EXTENT_DOWN";
4270 problem = PR_1_EXTENT_HEADER_INVALID;
4271 if (!next_try_repairs)
4273 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
4274 goto report_problem;
4277 /* The next extent should match this index's logical start */
4278 if (extent.e_lblk != lblk) {
4279 struct ext2_extent_info e_info;
4281 pctx->errcode = ext2fs_extent_get_info(ehandle,
4283 if (pctx->errcode) {
4284 pctx->str = "ext2fs_extent_get_info";
4288 pctx->blk2 = extent.e_lblk;
4289 pctx->num = e_info.curr_level - 1;
4290 problem = PR_1_EXTENT_INDEX_START_INVALID;
4291 if (fix_problem(ctx, problem, pctx)) {
4292 e2fsck_pass1_fix_lock(ctx);
4293 pb->inode_modified = 1;
4295 ext2fs_extent_fix_parents(ehandle);
4296 e2fsck_pass1_fix_unlock(ctx);
4297 if (pctx->errcode) {
4298 pctx->str = "ext2fs_extent_fix_parents";
4303 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
4304 last_lblk, eof_block, ehandle,
4308 pctx->errcode = ext2fs_extent_get(ehandle,
4309 EXT2_EXTENT_UP, &extent);
4310 if (pctx->errcode) {
4311 pctx->str = "EXT2_EXTENT_UP";
4314 mark_block_used(ctx, blk);
4319 if ((pb->previous_block != 0) &&
4320 (pb->previous_block+1 != extent.e_pblk)) {
4321 if (ctx->options & E2F_OPT_FRAGCHECK) {
4326 else if (pb->is_reg)
4329 printf(("%6lu(%c): expecting %6lu "
4331 "phys %6lu log %lu len %lu\n"),
4332 (unsigned long) pctx->ino, type,
4333 (unsigned long) pb->previous_block+1,
4334 (unsigned long) extent.e_pblk,
4335 (unsigned long) extent.e_lblk,
4336 (unsigned long) extent.e_len);
4341 * If we notice a gap in the logical block mappings of an
4342 * extent-mapped directory, offer to close the hole by
4343 * moving the logical block down, otherwise we'll go mad in
4344 * pass 3 allocating empty directory blocks to fill the hole.
4346 if (try_repairs && is_dir &&
4347 pb->last_block + 1 < extent.e_lblk) {
4350 new_lblk = pb->last_block + 1;
4351 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
4352 new_lblk = ((new_lblk +
4353 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
4354 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
4356 EXT2FS_CLUSTER_MASK(ctx->fs));
4357 pctx->blk = extent.e_lblk;
4358 pctx->blk2 = new_lblk;
4359 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
4360 e2fsck_pass1_fix_lock(ctx);
4361 extent.e_lblk = new_lblk;
4362 pb->inode_modified = 1;
4363 pctx->errcode = ext2fs_extent_replace(ehandle,
4365 e2fsck_pass1_fix_unlock(ctx);
4366 if (pctx->errcode) {
4370 e2fsck_pass1_fix_lock(ctx);
4371 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4372 e2fsck_pass1_fix_unlock(ctx);
4374 goto failed_add_dir_block;
4375 pctx->errcode = ext2fs_extent_goto(ehandle,
4378 goto failed_add_dir_block;
4379 last_lblk = extent.e_lblk + extent.e_len - 1;
4385 while (++pb->last_db_block <
4386 (e2_blkcnt_t) extent.e_lblk) {
4387 pctx->errcode = ext2fs_add_dir_block2(
4391 if (pctx->errcode) {
4393 pctx->num = pb->last_db_block;
4394 goto failed_add_dir_block;
4398 for (i = 0; i < extent.e_len; i++) {
4399 pctx->errcode = ext2fs_add_dir_block2(
4404 if (pctx->errcode) {
4405 pctx->blk = extent.e_pblk + i;
4406 pctx->num = extent.e_lblk + i;
4407 failed_add_dir_block:
4408 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4409 /* Should never get here */
4410 ctx->flags |= E2F_FLAG_ABORT;
4414 if (extent.e_len > 0)
4415 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
4417 if (has_unaligned_cluster_map(ctx, pb->previous_block,
4421 for (i = 0; i < extent.e_len; i++) {
4422 pctx->blk = extent.e_lblk + i;
4423 pctx->blk2 = extent.e_pblk + i;
4424 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4425 mark_block_used(ctx, extent.e_pblk + i);
4426 mark_block_used(ctx, extent.e_pblk + i);
4431 * Check whether first cluster got marked in previous iteration.
4433 if (ctx->fs->cluster_ratio_bits &&
4434 pb->previous_block &&
4435 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
4436 EXT2FS_B2C(ctx->fs, pb->previous_block)))
4437 /* Set blk to the beginning of next cluster. */
4440 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
4442 /* Set blk to the beginning of current cluster. */
4443 blk = EXT2FS_C2B(ctx->fs,
4444 EXT2FS_B2C(ctx->fs, extent.e_pblk));
4446 if (blk < extent.e_pblk + extent.e_len) {
4447 mark_blocks_used(ctx, blk,
4448 extent.e_pblk + extent.e_len - blk);
4449 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
4450 EXT2FS_CLUSTER_RATIO(ctx->fs));
4451 pb->num_blocks += n;
4453 pb->last_block = extent.e_lblk + extent.e_len - 1;
4454 pb->previous_block = extent.e_pblk + extent.e_len - 1;
4455 start_block = pb->last_block = last_lblk;
4456 if (is_leaf && !is_dir &&
4457 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
4458 pb->last_init_lblock = last_lblk;
4460 pctx->errcode = ext2fs_extent_get(ehandle,
4461 EXT2_EXTENT_NEXT_SIB,
4465 /* Failed csum but passes checks? Ask to fix checksum. */
4467 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
4468 e2fsck_pass1_fix_lock(ctx);
4469 pb->inode_modified = 1;
4470 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4471 e2fsck_pass1_fix_unlock(ctx);
4476 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4480 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4481 struct process_block_struct *pb)
4483 struct ext2_extent_info info;
4484 struct ext2_inode *inode = pctx->inode;
4485 ext2_extent_handle_t ehandle;
4486 ext2_filsys fs = ctx->fs;
4487 ext2_ino_t ino = pctx->ino;
4490 struct ext3_extent_header *eh;
4492 /* Check for a proper extent header... */
4493 eh = (struct ext3_extent_header *) &inode->i_block[0];
4494 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4496 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4497 e2fsck_clear_inode(ctx, ino, inode, 0,
4498 "check_blocks_extents");
4503 /* ...since this function doesn't fail if i_block is zeroed. */
4504 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4505 if (pctx->errcode) {
4506 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4507 e2fsck_clear_inode(ctx, ino, inode, 0,
4508 "check_blocks_extents");
4513 retval = ext2fs_extent_get_info(ehandle, &info);
4515 int max_depth = info.max_depth;
4517 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4518 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4519 ctx->extent_depth_count[max_depth]++;
4522 /* Check maximum extent depth */
4523 pctx->blk = info.max_depth;
4524 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4525 if (pctx->blk2 < pctx->blk &&
4526 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4527 pb->eti.force_rebuild = 1;
4529 /* Can we collect extent tree level stats? */
4530 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4531 if (pctx->blk2 > pctx->blk)
4532 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4533 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4534 pb->eti.ino = pb->ino;
4536 pb->next_lblock = 0;
4538 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4539 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4540 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4541 if (pctx->errcode &&
4542 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4544 inode->i_blocks = 0;
4545 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4546 "check_blocks_extents");
4549 ext2fs_extent_free(ehandle);
4551 /* Rebuild unless it's a dir and we're rehashing it */
4552 if (LINUX_S_ISDIR(inode->i_mode) &&
4553 e2fsck_dir_will_be_rehashed(ctx, ino))
4556 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4557 e2fsck_rebuild_extents_later(ctx, ino);
4559 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4563 * In fact we don't need to check blocks for an inode with inline data
4564 * because this inode doesn't have any blocks. In this function all
4565 * we need to do is add this inode into dblist when it is a directory.
4567 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4568 struct process_block_struct *pb)
4571 size_t inline_data_size = 0;
4578 /* Process the dirents in i_block[] as the "first" block. */
4579 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4583 /* Process the dirents in the EA as a "second" block. */
4584 flags = ctx->fs->flags;
4585 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4586 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4588 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4589 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4590 if (pctx->errcode) {
4595 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4598 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4606 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4607 ctx->flags |= E2F_FLAG_ABORT;
4611 * This subroutine is called on each inode to account for all of the
4612 * blocks used by that inode.
4614 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4615 char *block_buf, const struct ea_quota *ea_ibody_quota)
4617 ext2_filsys fs = ctx->fs;
4618 struct process_block_struct pb;
4619 ext2_ino_t ino = pctx->ino;
4620 struct ext2_inode *inode = pctx->inode;
4621 unsigned bad_size = 0;
4622 int dirty_inode = 0;
4626 struct ea_quota ea_block_quota;
4629 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4630 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4632 pb.last_init_lblock = -1;
4633 pb.last_db_block = -1;
4634 pb.num_illegal_blocks = 0;
4635 pb.suppress = 0; pb.clear = 0;
4638 pb.previous_block = 0;
4639 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4640 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4641 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4645 pb.inode_modified = 0;
4646 pb.eti.force_rebuild = 0;
4650 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4651 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4653 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4654 if (e2fsck_should_abort(ctx))
4656 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4659 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4660 check_blocks_inline_data(ctx, pctx, &pb);
4661 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4662 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4663 check_blocks_extents(ctx, pctx, &pb);
4667 * If we've modified the inode, write it out before
4668 * iterate() tries to use it.
4671 e2fsck_write_inode(ctx, ino, inode,
4676 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4677 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4678 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4679 block_buf, process_block, &pb);
4681 * We do not have uninitialized extents in non extent
4684 pb.last_init_lblock = pb.last_block;
4686 * If iterate() changed a block mapping, we have to
4687 * re-read the inode. If we decide to clear the
4688 * inode after clearing some stuff, we'll re-write the
4689 * bad mappings into the inode!
4691 if (pb.inode_modified)
4692 e2fsck_read_inode(ctx, ino, inode,
4694 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4695 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4697 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4699 printf("bmap rebuild ino=%d\n", ino);
4701 if (!LINUX_S_ISDIR(inode->i_mode) ||
4702 !e2fsck_dir_will_be_rehashed(ctx, ino))
4703 e2fsck_rebuild_extents_later(ctx, ino);
4707 end_problem_latch(ctx, PR_LATCH_BLOCK);
4708 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4709 if (e2fsck_should_abort(ctx))
4712 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4714 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4715 if (LINUX_S_ISDIR(inode->i_mode))
4716 ctx->fs_fragmented_dir++;
4718 ctx->fs_fragmented++;
4722 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4727 if (inode->i_flags & EXT2_INDEX_FL) {
4728 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4729 inode->i_flags &= ~EXT2_INDEX_FL;
4732 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4736 if (!pb.num_blocks && pb.is_dir &&
4737 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4738 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4739 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4740 ctx->fs_directory_count--;
4745 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4746 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4747 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4748 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4750 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4751 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4752 ino, (ea_ibody_quota ?
4753 ea_ibody_quota->inodes : 0) +
4754 ea_block_quota.inodes + 1);
4757 if (!ext2fs_has_feature_huge_file(fs->super) ||
4758 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4759 pb.num_blocks *= (fs->blocksize / 512);
4760 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4762 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4763 ino, inode->i_size, (unsigned long long) pb.last_block,
4764 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4765 (unsigned long long) pb.num_blocks);
4767 size = EXT2_I_SIZE(inode);
4769 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4770 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4775 flags = ctx->fs->flags;
4776 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4777 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4779 ctx->fs->flags = (flags &
4780 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4782 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4783 if (err || sz != size) {
4787 } else if (size & (fs->blocksize - 1))
4789 else if (nblock > (pb.last_block + 1))
4791 else if (nblock < (pb.last_block + 1)) {
4792 if (((pb.last_block + 1) - nblock) >
4793 fs->super->s_prealloc_dir_blocks)
4797 if ((pb.last_init_lblock >= 0) &&
4798 /* Do not allow initialized allocated blocks past i_size*/
4799 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4800 !(inode->i_flags & EXT4_VERITY_FL))
4802 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4803 size > ext2_max_sizes[fs->super->s_log_block_size])
4804 /* too big for a direct/indirect-mapped file */
4806 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4808 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4809 /* too big for an extent-based file - 32bit ee_block */
4812 /* i_size for symlinks is checked elsewhere */
4813 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4814 /* Did inline_data set pctx->num earlier? */
4816 pctx->num = (pb.last_block + 1) * fs->blocksize;
4817 pctx->group = bad_size;
4818 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4819 ext2fs_inode_size_set(fs, inode, pctx->num);
4820 if (EXT2_I_SIZE(inode) == 0 &&
4821 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4822 memset(inode->i_block, 0,
4823 sizeof(inode->i_block));
4824 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4830 if (LINUX_S_ISREG(inode->i_mode) &&
4831 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4833 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4834 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4835 (ext2fs_has_feature_huge_file(fs->super) &&
4836 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4837 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4838 pctx->num = pb.num_blocks;
4839 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4840 inode->i_blocks = pb.num_blocks;
4841 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4848 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4849 * a block mapped file, so rebuild it as an extent file. We can skip
4850 * symlinks because they're never rewritten.
4852 if (ext2fs_has_feature_bigalloc(fs->super) &&
4853 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4854 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4855 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4856 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4857 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4858 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4863 if (ctx->dirs_to_hash && pb.is_dir &&
4864 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4865 !(inode->i_flags & EXT2_INDEX_FL) &&
4866 ((inode->i_size / fs->blocksize) >= 3))
4867 e2fsck_rehash_dir_later(ctx, ino);
4871 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4876 * Helper function called by process block when an illegal block is
4877 * found. It returns a description about why the block is illegal
4879 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4883 static char problem[80];
4885 super = fs->super->s_first_data_block;
4886 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4887 if (block < super) {
4888 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4890 } else if (block >= ext2fs_blocks_count(fs->super)) {
4891 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4894 for (i = 0; i < fs->group_desc_count; i++) {
4895 if (block == super) {
4896 sprintf(problem, "is the superblock in group %d", i);
4899 if (block > super &&
4900 block <= (super + fs->desc_blocks)) {
4901 sprintf(problem, "is in the group descriptors "
4905 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4906 sprintf(problem, "is the block bitmap of group %d", i);
4909 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4910 sprintf(problem, "is the inode bitmap of group %d", i);
4913 if (block >= ext2fs_inode_table_loc(fs, i) &&
4914 (block < ext2fs_inode_table_loc(fs, i)
4915 + fs->inode_blocks_per_group)) {
4916 sprintf(problem, "is in the inode table of group %d",
4920 super += fs->super->s_blocks_per_group;
4927 * This is a helper function for check_blocks().
4929 static int process_block(ext2_filsys fs,
4931 e2_blkcnt_t blockcnt,
4932 blk64_t ref_block EXT2FS_ATTR((unused)),
4933 int ref_offset EXT2FS_ATTR((unused)),
4936 struct process_block_struct *p;
4937 struct problem_context *pctx;
4938 blk64_t blk = *block_nr;
4940 problem_t problem = 0;
4943 p = (struct process_block_struct *) priv_data;
4948 * For a directory, add logical block zero for processing even if it's
4949 * not mapped or we'll be perennially stuck with broken "." and ".."
4952 if (p->is_dir && blockcnt == 0 && blk == 0) {
4953 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4954 if (pctx->errcode) {
4956 pctx->num = blockcnt;
4957 goto failed_add_dir_block;
4966 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4971 * Simplistic fragmentation check. We merely require that the
4972 * file be contiguous. (Which can never be true for really
4973 * big files that are greater than a block group.)
4975 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4976 if (p->previous_block+1 != blk) {
4977 if (ctx->options & E2F_OPT_FRAGCHECK) {
4985 printf(_("%6lu(%c): expecting %6lu "
4986 "got phys %6lu (blkcnt %lld)\n"),
4987 (unsigned long) pctx->ino, type,
4988 (unsigned long) p->previous_block+1,
4989 (unsigned long) blk,
4990 (long long) blockcnt);
4996 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4997 !pctx->inode->i_size_high &&
4998 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4999 problem = PR_1_TOOBIG_DIR;
5000 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
5001 problem = PR_1_TOOBIG_DIR;
5002 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
5003 problem = PR_1_TOOBIG_REG;
5004 if (!p->is_dir && !p->is_reg && blockcnt > 0)
5005 problem = PR_1_TOOBIG_SYMLINK;
5007 if (blk < fs->super->s_first_data_block ||
5008 blk >= ext2fs_blocks_count(fs->super))
5009 problem = PR_1_ILLEGAL_BLOCK_NUM;
5012 * If this IND/DIND/TIND block is squatting atop some critical metadata
5013 * (group descriptors, superblock, bitmap, inode table), any write to
5014 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
5015 * fix that and restart fsck.
5018 p->ino != EXT2_RESIZE_INO &&
5019 blk < ctx->fs->super->s_blocks_count &&
5020 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
5022 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
5023 if ((ctx->options & E2F_OPT_NO) == 0)
5024 ctx->flags |= E2F_FLAG_RESTART_LATER;
5028 p->num_illegal_blocks++;
5030 * A bit of subterfuge here -- we're trying to fix a block
5031 * mapping, but the IND/DIND/TIND block could have collided
5032 * with some critical metadata. So, fix the in-core mapping so
5033 * iterate won't go insane, but return 0 instead of
5034 * BLOCK_CHANGED so that it won't write the remapping out to
5035 * our multiply linked block.
5037 * Even if we previously determined that an *IND block
5038 * conflicts with critical metadata, we must still try to
5039 * iterate the *IND block as if it is an *IND block to find and
5040 * mark the blocks it points to. Better to be overly cautious
5041 * with the used_blocks map so that we don't move the *IND
5042 * block to a block that's really in use!
5044 if (p->ino != EXT2_RESIZE_INO &&
5046 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
5051 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
5052 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
5056 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
5058 set_latch_flags(PR_LATCH_BLOCK,
5063 pctx->blkcount = blockcnt;
5064 if (fix_problem(ctx, problem, pctx)) {
5065 blk = *block_nr = 0;
5066 ret_code = BLOCK_CHANGED;
5067 p->inode_modified = 1;
5069 * If the directory block is too big and is beyond the
5070 * end of the FS, don't bother trying to add it for
5071 * processing -- the kernel would never have created a
5072 * directory this large, and we risk an ENOMEM abort.
5073 * In any case, the toobig handler for extent-based
5074 * directories also doesn't feed toobig blocks to
5077 if (problem == PR_1_TOOBIG_DIR)
5084 if (p->ino == EXT2_RESIZE_INO) {
5086 * The resize inode has already be sanity checked
5087 * during pass #0 (the superblock checks). All we
5088 * have to do is mark the double indirect block as
5089 * being in use; all of the other blocks are handled
5090 * by mark_table_blocks()).
5092 if (blockcnt == BLOCK_COUNT_DIND)
5093 mark_block_used(ctx, blk);
5095 } else if (!(ctx->fs->cluster_ratio_bits &&
5096 p->previous_block &&
5097 (EXT2FS_B2C(ctx->fs, blk) ==
5098 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
5099 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
5100 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
5101 mark_block_used(ctx, blk);
5103 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
5104 p->last_block, blk, blockcnt)) {
5105 pctx->blk = blockcnt;
5107 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
5108 mark_block_used(ctx, blk);
5109 mark_block_used(ctx, blk);
5112 p->last_block = blockcnt;
5113 p->previous_block = blk;
5115 if (p->is_dir && (blockcnt >= 0)) {
5116 while (++p->last_db_block < blockcnt) {
5117 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
5120 if (pctx->errcode) {
5122 pctx->num = p->last_db_block;
5123 goto failed_add_dir_block;
5126 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
5128 if (pctx->errcode) {
5130 pctx->num = blockcnt;
5131 failed_add_dir_block:
5132 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
5133 /* Should never get here */
5134 ctx->flags |= E2F_FLAG_ABORT;
5141 static int process_bad_block(ext2_filsys fs,
5143 e2_blkcnt_t blockcnt,
5144 blk64_t ref_block EXT2FS_ATTR((unused)),
5145 int ref_offset EXT2FS_ATTR((unused)),
5148 struct process_block_struct *p;
5149 blk64_t blk = *block_nr;
5150 blk64_t first_block;
5152 struct problem_context *pctx;
5158 p = (struct process_block_struct *) priv_data;
5162 pctx->ino = EXT2_BAD_INO;
5164 pctx->blkcount = blockcnt;
5166 if ((blk < fs->super->s_first_data_block) ||
5167 (blk >= ext2fs_blocks_count(fs->super))) {
5168 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
5170 return BLOCK_CHANGED;
5176 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
5178 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
5180 return BLOCK_CHANGED;
5182 } else if (is_blocks_used(ctx, blk, 1)) {
5184 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
5187 return BLOCK_CHANGED;
5189 if (e2fsck_should_abort(ctx))
5192 mark_block_used(ctx, blk);
5197 printf ("DEBUG: Marking %u as bad.\n", blk);
5199 ctx->fs_badblocks_count++;
5201 * If the block is not used, then mark it as used and return.
5202 * If it is already marked as found, this must mean that
5203 * there's an overlap between the filesystem table blocks
5204 * (bitmaps and inode table) and the bad block list.
5206 if (!is_blocks_used(ctx, blk, 1)) {
5207 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5211 * Try to find the where the filesystem block was used...
5213 first_block = fs->super->s_first_data_block;
5215 for (i = 0; i < fs->group_desc_count; i++ ) {
5218 if (!ext2fs_bg_has_super(fs, i))
5220 if (blk == first_block) {
5222 if (fix_problem(ctx,
5223 PR_1_BAD_PRIMARY_SUPERBLOCK,
5226 return BLOCK_CHANGED;
5230 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
5233 if ((blk > first_block) &&
5234 (blk <= first_block + fs->desc_blocks)) {
5236 pctx->blk = *block_nr;
5237 if (fix_problem(ctx,
5238 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
5240 return BLOCK_CHANGED;
5244 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
5248 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
5249 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
5250 ctx->invalid_block_bitmap_flag[i]++;
5251 ctx->invalid_bitmaps++;
5255 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
5256 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
5257 ctx->invalid_inode_bitmap_flag[i]++;
5258 ctx->invalid_bitmaps++;
5262 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
5263 (blk < (ext2fs_inode_table_loc(fs, i) +
5264 fs->inode_blocks_per_group))) {
5266 * If there are bad blocks in the inode table,
5267 * the inode scan code will try to do
5268 * something reasonable automatically.
5272 first_block += fs->super->s_blocks_per_group;
5275 * If we've gotten to this point, then the only
5276 * possibility is that the bad block inode meta data
5277 * is using a bad block.
5279 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
5280 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
5281 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
5283 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
5285 return BLOCK_CHANGED;
5287 if (e2fsck_should_abort(ctx))
5294 /* Warn user that the block wasn't claimed */
5295 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
5300 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
5301 const char *name, int num, blk64_t *new_block)
5303 ext2_filsys fs = ctx->fs;
5305 blk64_t old_block = *new_block;
5308 unsigned flexbg_size;
5311 struct problem_context pctx;
5313 clear_problem_context(&pctx);
5316 pctx.blk = old_block;
5320 * For flex_bg filesystems, first try to allocate the metadata
5321 * within the flex_bg, and if that fails then try finding the
5322 * space anywhere in the filesystem.
5324 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
5326 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
5327 flexbg = group / flexbg_size;
5328 first_block = ext2fs_group_first_block2(fs,
5329 flexbg_size * flexbg);
5330 last_grp = group | (flexbg_size - 1);
5331 if (last_grp >= fs->group_desc_count)
5332 last_grp = fs->group_desc_count - 1;
5333 last_block = ext2fs_group_last_block2(fs, last_grp);
5335 last_block = ext2fs_group_last_block2(fs, group);
5336 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
5337 num, ctx->block_found_map,
5339 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
5340 pctx.errcode = ext2fs_get_free_blocks2(fs,
5341 fs->super->s_first_data_block,
5342 ext2fs_blocks_count(fs->super),
5343 num, ctx->block_found_map, new_block);
5346 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
5347 ext2fs_unmark_valid(fs);
5348 ctx->flags |= E2F_FLAG_ABORT;
5351 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
5353 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
5354 ext2fs_unmark_valid(fs);
5355 ctx->flags |= E2F_FLAG_ABORT;
5358 ext2fs_mark_super_dirty(fs);
5359 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
5360 pctx.blk2 = *new_block;
5361 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
5362 PR_1_RELOC_TO), &pctx);
5364 for (i = 0; i < num; i++) {
5366 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
5368 pctx.errcode = io_channel_read_blk64(fs->io,
5369 old_block + i, 1, buf);
5371 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
5372 pctx.blk = (*new_block) + i;
5373 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
5376 pctx.blk = (*new_block) + i;
5377 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
5382 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
5384 ext2fs_free_mem(&buf);
5388 * This routine gets called at the end of pass 1 if bad blocks are
5389 * detected in the superblock, group descriptors, inode_bitmaps, or
5390 * block bitmaps. At this point, all of the blocks have been mapped
5391 * out, so we can try to allocate new block(s) to replace the bad
5394 static void handle_fs_bad_blocks(e2fsck_t ctx)
5396 ext2_filsys fs = ctx->fs;
5398 blk64_t first_block;
5401 for (i = 0; i < fs->group_desc_count; i++) {
5402 first_block = ext2fs_group_first_block2(fs, i);
5404 if (ctx->invalid_block_bitmap_flag[i]) {
5405 new_blk = ext2fs_block_bitmap_loc(fs, i);
5406 new_table_block(ctx, first_block, i, _("block bitmap"),
5408 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
5410 if (ctx->invalid_inode_bitmap_flag[i]) {
5411 new_blk = ext2fs_inode_bitmap_loc(fs, i);
5412 new_table_block(ctx, first_block, i, _("inode bitmap"),
5414 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
5416 if (ctx->invalid_inode_table_flag[i]) {
5417 new_blk = ext2fs_inode_table_loc(fs, i);
5418 new_table_block(ctx, first_block, i, _("inode table"),
5419 fs->inode_blocks_per_group,
5421 ext2fs_inode_table_loc_set(fs, i, new_blk);
5422 ctx->flags |= E2F_FLAG_RESTART;
5425 ctx->invalid_bitmaps = 0;
5429 * This routine marks all blocks which are used by the superblock,
5430 * group descriptors, inode bitmaps, and block bitmaps.
5432 static void mark_table_blocks(e2fsck_t ctx)
5434 ext2_filsys fs = ctx->fs;
5438 struct problem_context pctx;
5440 clear_problem_context(&pctx);
5442 for (i = 0; i < fs->group_desc_count; i++) {
5445 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
5446 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
5449 * Mark the blocks used for the inode table
5451 if (ext2fs_inode_table_loc(fs, i)) {
5452 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
5453 j < fs->inode_blocks_per_group;
5455 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5458 if (!ctx->invalid_inode_table_flag[i] &&
5460 PR_1_ITABLE_CONFLICT, &pctx)) {
5461 ctx->invalid_inode_table_flag[i]++;
5462 ctx->invalid_bitmaps++;
5465 ext2fs_mark_block_bitmap2(
5466 ctx->block_found_map, b);
5467 ext2fs_mark_block_bitmap2(
5468 ctx->block_metadata_map, b);
5474 * Mark block used for the block bitmap
5476 if (ext2fs_block_bitmap_loc(fs, i)) {
5477 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5478 ext2fs_block_bitmap_loc(fs, i))) {
5479 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5480 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5481 ctx->invalid_block_bitmap_flag[i]++;
5482 ctx->invalid_bitmaps++;
5485 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5486 ext2fs_block_bitmap_loc(fs, i));
5487 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5488 ext2fs_block_bitmap_loc(fs, i));
5492 * Mark block used for the inode bitmap
5494 if (ext2fs_inode_bitmap_loc(fs, i)) {
5495 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5496 ext2fs_inode_bitmap_loc(fs, i))) {
5497 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5498 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5499 ctx->invalid_inode_bitmap_flag[i]++;
5500 ctx->invalid_bitmaps++;
5503 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5504 ext2fs_inode_bitmap_loc(fs, i));
5505 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5506 ext2fs_inode_bitmap_loc(fs, i));
5513 * These subroutines short circuits ext2fs_get_blocks and
5514 * ext2fs_check_directory; we use them since we already have the inode
5515 * structure, so there's no point in letting the ext2fs library read
5518 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5521 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5524 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5525 return EXT2_ET_CALLBACK_NOTHANDLED;
5527 for (i=0; i < EXT2_N_BLOCKS; i++)
5528 blocks[i] = ctx->stashed_inode->i_block[i];
5532 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5533 struct ext2_inode *inode)
5535 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5537 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5538 return EXT2_ET_CALLBACK_NOTHANDLED;
5539 *inode = *ctx->stashed_inode;
5543 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5544 struct ext2_inode *inode)
5546 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5548 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5549 (inode != ctx->stashed_inode))
5550 *ctx->stashed_inode = *inode;
5551 return EXT2_ET_CALLBACK_NOTHANDLED;
5554 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5556 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5558 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5559 return EXT2_ET_CALLBACK_NOTHANDLED;
5561 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5562 return EXT2_ET_NO_DIRECTORY;
5566 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5569 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5573 if (ctx->block_found_map) {
5574 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5578 if (fs->block_map) {
5579 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5580 ext2fs_mark_bb_dirty(fs);
5583 if (!fs->block_map) {
5584 retval = ext2fs_read_block_bitmap(fs);
5589 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5598 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5599 blk64_t len, blk64_t *pblk, blk64_t *plen)
5601 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5604 if (ctx->block_found_map)
5605 return ext2fs_new_range(fs, flags, goal, len,
5606 ctx->block_found_map, pblk, plen);
5608 if (!fs->block_map) {
5609 retval = ext2fs_read_block_bitmap(fs);
5614 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5618 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5620 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5622 /* Never free a critical metadata block */
5623 if (ctx->block_found_map &&
5624 ctx->block_metadata_map &&
5626 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5629 if (ctx->block_found_map) {
5631 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5633 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5637 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5638 blk_t num, int inuse)
5640 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5642 /* Never free a critical metadata block */
5643 if (ctx->block_found_map &&
5644 ctx->block_metadata_map &&
5646 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5649 if (ctx->block_found_map) {
5651 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5654 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5659 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5661 ext2_filsys fs = ctx->fs;
5663 if (use_shortcuts) {
5664 fs->get_blocks = pass1_get_blocks;
5665 fs->check_directory = pass1_check_directory;
5666 fs->read_inode = pass1_read_inode;
5667 fs->write_inode = pass1_write_inode;
5668 ctx->stashed_ino = 0;
5671 fs->check_directory = 0;
5673 fs->write_inode = 0;
5677 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5679 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5680 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5681 e2fsck_block_alloc_stats, 0);
5682 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5683 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5684 e2fsck_block_alloc_stats_range, NULL);