/*
* pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
- *
+ *
* Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
- *
+ *
* Pass 1 of e2fsck iterates over all the inodes in the filesystems,
* and applies the following tests to each inode:
*
#endif
static int process_block(ext2_filsys fs, blk_t *blocknr,
- e2_blkcnt_t blockcnt, blk_t ref_blk,
+ e2_blkcnt_t blockcnt, blk_t ref_blk,
int ref_offset, void *priv_data);
static int process_bad_block(ext2_filsys fs, blk_t *block_nr,
e2_blkcnt_t blockcnt, blk_t ref_blk,
static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
dgrp_t group, void * priv_data);
-static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
+static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
char *block_buf, int adjust_sign);
/* static char *describe_illegal_block(ext2_filsys fs, blk_t block); */
*
* Note: this routine is now also used to check FIFO's and Sockets,
* since they have the same requirement; the i_block fields should be
- * zero.
+ * zero.
*/
-int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
+int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
struct ext2_inode *inode)
{
int i;
* the kernel has been fixed we can change this...
*/
if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
- for (i=4; i < EXT2_N_BLOCKS; i++)
+ for (i=4; i < EXT2_N_BLOCKS; i++)
if (inode->i_block[i])
return 0;
}
* Check to make sure a symlink inode is real. Returns 1 if the symlink
* checks out, 0 if not.
*/
-int e2fsck_pass1_check_symlink(ext2_filsys fs, struct ext2_inode *inode,
- char *buf)
+int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
+ struct ext2_inode *inode, char *buf)
{
unsigned int len;
int i;
blk_t blocks;
+ ext2_extent_handle_t handle;
+ struct ext2_extent_info info;
+ struct ext2fs_extent extent;
if ((inode->i_size_high || inode->i_size == 0) ||
(inode->i_flags & EXT2_INDEX_FL))
return 0;
+ if (inode->i_flags & EXT4_EXTENTS_FL) {
+ if (inode->i_size > fs->blocksize)
+ return 0;
+ if (ext2fs_extent_open2(fs, ino, inode, &handle))
+ return 0;
+ i = 0;
+ if (ext2fs_extent_get_info(handle, &info) ||
+ (info.num_entries != 1) ||
+ (info.max_depth != 0))
+ goto exit_extent;
+ if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
+ (extent.e_lblk != 0) ||
+ (extent.e_len != 1) ||
+ (extent.e_pblk < fs->super->s_first_data_block) ||
+ (extent.e_pblk >= fs->super->s_blocks_count))
+ goto exit_extent;
+ i = 1;
+ exit_extent:
+ ext2fs_extent_free(handle);
+ return i;
+ }
+
blocks = ext2fs_inode_data_blocks(fs, inode);
if (blocks) {
if ((inode->i_size >= fs->blocksize) ||
static void check_size(e2fsck_t ctx, struct problem_context *pctx)
{
struct ext2_inode *inode = pctx->inode;
-
+
if ((inode->i_size == 0) && (inode->i_size_high == 0))
return;
-
+
if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
return;
-
+
inode->i_size = 0;
inode->i_size_high = 0;
e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
}
-
+
static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
{
struct ext2_super_block *sb = ctx->fs->super;
/* scan all entry's headers first */
/* take finish entry 0UL into account */
- remain = storage_size - sizeof(__u32);
+ remain = storage_size - sizeof(__u32);
while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ __u32 hash;
/* header eats this space */
remain -= sizeof(struct ext2_ext_attr_entry);
-
+
/* is attribute name valid? */
if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
pctx->num = entry->e_name_len;
problem = PR_1_ATTR_VALUE_BLOCK;
goto fix;
}
-
- /* e_hash must be 0 in inode's ea */
- if (entry->e_hash != 0) {
+
+ hash = ext2fs_ext_attr_hash_entry(entry,
+ start + entry->e_value_offs);
+
+ /* e_hash may be 0 in older inode's ea */
+ if (entry->e_hash != 0 && entry->e_hash != hash) {
pctx->num = entry->e_hash;
problem = PR_1_ATTR_HASH;
goto fix;
* it seems like a corruption. it's very unlikely we could repair
* EA(s) in automatic fashion -bzzz
*/
-#if 0
- problem = PR_1_ATTR_HASH;
-#endif
if (problem == 0 || !fix_problem(ctx, problem, pctx))
return;
- /* simple remove all possible EA(s) */
+ /* simply remove all possible EA(s) */
*((__u32 *)start) = 0UL;
e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
EXT2_INODE_SIZE(sb), "pass1");
#if 0
printf("inode #%u, i_extra_size %d\n", pctx->ino,
inode->i_extra_isize);
-#endif
+#endif
/* i_extra_isize must cover i_extra_isize + i_pad1 at least */
min = sizeof(inode->i_extra_isize) + sizeof(inode->i_pad1);
max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
- /*
+ /*
* For now we will allow i_extra_isize to be 0, but really
* implementations should never allow i_extra_isize to be 0
*/
}
}
-/*
+/*
* Check to see if the inode might really be a directory, despite i_mode
*
* This is a lot of complexity for something for which I'm not really
const char *old_op;
errcode_t retval;
blk_t blk;
- int i, not_device = 0;
+ unsigned int i, rec_len, not_device = 0;
if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
return; /* Invalid block, can't be dir */
}
- if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
+ if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
(inode->i_links_count == 1) && !not_device)
return;
return;
dirent = (struct ext2_dir_entry *) buf;
+ retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
+ if (retval)
+ return;
if (((dirent->name_len & 0xFF) != 1) ||
(dirent->name[0] != '.') ||
(dirent->inode != pctx->ino) ||
- (dirent->rec_len < 12) ||
- (dirent->rec_len % 4) ||
- (dirent->rec_len >= ctx->fs->blocksize - 12))
+ (rec_len < 12) ||
+ (rec_len % 4) ||
+ (rec_len >= ctx->fs->blocksize - 12))
return;
- dirent = (struct ext2_dir_entry *) (buf + dirent->rec_len);
+ dirent = (struct ext2_dir_entry *) (buf + rec_len);
+ retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
+ if (retval)
+ return;
if (((dirent->name_len & 0xFF) != 2) ||
(dirent->name[0] != '.') ||
(dirent->name[1] != '.') ||
- (dirent->rec_len < 12) ||
- (dirent->rec_len % 4))
+ (rec_len < 12) ||
+ (rec_len % 4))
return;
if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
- e2fsck_write_inode_full(ctx, pctx->ino, inode,
- EXT2_INODE_SIZE(ctx->fs->super),
+ e2fsck_write_inode_full(ctx, pctx->ino, inode,
+ EXT2_INODE_SIZE(ctx->fs->super),
"check_is_really_dir");
}
}
-extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
+extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
ext2_icount_t *ret)
{
unsigned int threshold;
struct scan_callback_struct scan_struct;
struct ext2_super_block *sb = ctx->fs->super;
const char *old_op;
- int imagic_fs;
+ int imagic_fs, extent_fs;
int busted_fs_time = 0;
int inode_size;
-
-#ifdef RESOURCE_TRACK
+
init_resource_track(&rtrack, ctx->fs->io);
-#endif
clear_problem_context(&pctx);
if (!(ctx->options & E2F_OPT_PREEN))
#undef EXT2_BPP
imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
+ extent_fs = (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS);
/*
* Allocate bitmaps structures
"block interate buffer");
e2fsck_use_inode_shortcuts(ctx, 1);
old_op = ehandler_operation(_("opening inode scan"));
- pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
+ pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
&scan);
ehandler_operation(old_op);
if (pctx.errcode) {
while (1) {
old_op = ehandler_operation(_("getting next inode from scan"));
- pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
+ pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
inode, inode_size);
ehandler_operation(old_op);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
pctx.inode = inode;
ctx->stashed_ino = ino;
if (inode->i_links_count) {
- pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
+ pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
ino, inode->i_links_count);
if (pctx.errcode) {
pctx.num = inode->i_links_count;
return;
}
}
+
+ /*
+ * Test for incorrect extent flag settings.
+ *
+ * On big-endian machines we must be careful:
+ * When the inode is read, the i_block array is not swapped
+ * if the extent flag is set. Therefore if we are testing
+ * for or fixing a wrongly-set flag, we must potentially
+ * (un)swap before testing, or after fixing.
+ */
+
+ /*
+ * In this case the extents flag was set when read, so
+ * extent_header_verify is ok. If the inode is cleared,
+ * no need to swap... so no extra swapping here.
+ */
+ if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
+ (inode->i_links_count || (ino == EXT2_BAD_INO) ||
+ (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
+ if ((ext2fs_extent_header_verify(inode->i_block,
+ sizeof(inode->i_block)) == 0) &&
+ fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
+ sb->s_feature_incompat |= EXT3_FEATURE_INCOMPAT_EXTENTS;
+ ext2fs_mark_super_dirty(fs);
+ extent_fs = 1;
+ } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
+ clear_inode:
+ e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
+ if (ino == EXT2_BAD_INO)
+ ext2fs_mark_inode_bitmap(ctx->inode_used_map,
+ ino);
+ continue;
+ }
+ }
+
+ /*
+ * For big-endian machines:
+ * If the inode didn't have the extents flag set when it
+ * was read, then the i_blocks array was swapped. To test
+ * as an extents header, we must swap it back first.
+ * IF we then set the extents flag, the entire i_block
+ * array must be un/re-swapped to make it proper extents data.
+ */
+ if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
+ (inode->i_links_count || (ino == EXT2_BAD_INO) ||
+ (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
+ (LINUX_S_ISREG(inode->i_mode) ||
+ LINUX_S_ISDIR(inode->i_mode))) {
+ void *ehp;
+#ifdef WORDS_BIGENDIAN
+ __u32 tmp_block[EXT2_N_BLOCKS];
+
+ for (i = 0; i < EXT2_N_BLOCKS; i++)
+ tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
+ ehp = tmp_block;
+#else
+ ehp = inode->i_block;
+#endif
+ if ((ext2fs_extent_header_verify(ehp,
+ sizeof(inode->i_block)) == 0) &&
+ (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
+ inode->i_flags |= EXT4_EXTENTS_FL;
+#ifdef WORDS_BIGENDIAN
+ memcpy(inode->i_block, tmp_block,
+ sizeof(inode->i_block));
+#endif
+ e2fsck_write_inode(ctx, ino, inode, "pass1");
+ }
+ }
+
if (ino == EXT2_BAD_INO) {
struct process_block_struct pb;
-
+
pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
&pb.fs_meta_blocks);
if (pctx.errcode) {
pb.inode = inode;
pb.pctx = &pctx;
pb.ctx = ctx;
- pctx.errcode = ext2fs_block_iterate2(fs, ino, 0,
+ pctx.errcode = ext2fs_block_iterate2(fs, ino, 0,
block_buf, process_bad_block, &pb);
ext2fs_free_block_bitmap(pb.fs_meta_blocks);
if (pctx.errcode) {
* regnerated in pass #3.
*/
if (!LINUX_S_ISDIR(inode->i_mode)) {
- if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx)) {
- e2fsck_clear_inode(ctx, ino, inode,
- 0, "pass1");
- }
+ if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
+ goto clear_inode;
}
/*
* If dtime is set, offer to clear it. mke2fs
}
if ((inode->i_links_count || inode->i_blocks ||
inode->i_blocks || inode->i_block[0]) &&
- fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
+ fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
&pctx)) {
memset(inode, 0, inode_size);
ext2fs_icount_store(ctx->inode_link_info,
ino, 0);
- e2fsck_write_inode_full(ctx, ino, inode,
+ e2fsck_write_inode_full(ctx, ino, inode,
inode_size, "pass1");
}
} else if (ino < EXT2_FIRST_INODE(fs->super)) {
int problem = 0;
-
+
ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
if (ino == EXT2_BOOT_LOADER_INO) {
if (LINUX_S_ISDIR(inode->i_mode))
* orphaned list linked list. They should have gotten
* dealt with by now, unless the list had somehow been
* corrupted.
- *
+ *
* FIXME: In the future, inodes which are still in use
* (and which are therefore) pending truncation should
* be handled specially. Right now we just clear the
"pass1");
}
}
-
+
/*
* This code assumes that deleted inodes have
- * i_links_count set to 0.
+ * i_links_count set to 0.
*/
if (!inode->i_links_count) {
if (!inode->i_dtime && inode->i_mode) {
* we now assume that the case of non-zero
* i_links_count and non-zero dtime means that we
* should keep the file, not delete it.
- *
+ *
*/
if (inode->i_dtime) {
if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
e2fsck_write_inode(ctx, ino, inode, "pass1");
}
}
-
+
ext2fs_mark_inode_bitmap(ctx->inode_used_map, ino);
switch (fs->super->s_creator_os) {
case EXT2_OS_HURD:
default:
frag = fsize = 0;
}
-
+
if (inode->i_faddr || frag || fsize ||
(LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
mark_inode_bad(ctx, ino);
+ if (!(fs->super->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_64BIT) &&
+ inode->osd2.linux2.l_i_file_acl_high != 0)
+ mark_inode_bad(ctx, ino);
if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
- !(fs->super->s_feature_ro_compat &
+ !(fs->super->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
(inode->osd2.linux2.l_i_blocks_hi != 0))
mark_inode_bad(ctx, ino);
check_inode_extra_space(ctx, &pctx);
check_is_really_dir(ctx, &pctx, block_buf);
+ /*
+ * ext2fs_inode_has_valid_blocks does not actually look
+ * at i_block[] values, so not endian-sensitive here.
+ */
+ if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
+ LINUX_S_ISLNK(inode->i_mode) &&
+ !ext2fs_inode_has_valid_blocks(inode) &&
+ fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
+ inode->i_flags &= ~EXT4_EXTENTS_FL;
+ e2fsck_write_inode(ctx, ino, inode, "pass1");
+ }
+
if (LINUX_S_ISDIR(inode->i_mode)) {
ext2fs_mark_inode_bitmap(ctx->inode_dir_map, ino);
e2fsck_add_dir_info(ctx, ino, 0);
check_size(ctx, &pctx);
ctx->fs_blockdev_count++;
} else if (LINUX_S_ISLNK (inode->i_mode) &&
- e2fsck_pass1_check_symlink(fs, inode, block_buf)) {
+ e2fsck_pass1_check_symlink(fs, ino, inode,
+ block_buf)) {
check_immutable(ctx, &pctx);
ctx->fs_symlinks_count++;
if (ext2fs_inode_data_blocks(fs, inode) == 0) {
ctx->fs_sockets_count++;
} else
mark_inode_bad(ctx, ino);
- if (inode->i_block[EXT2_IND_BLOCK])
- ctx->fs_ind_count++;
- if (inode->i_block[EXT2_DIND_BLOCK])
- ctx->fs_dind_count++;
- if (inode->i_block[EXT2_TIND_BLOCK])
- ctx->fs_tind_count++;
- if (inode->i_block[EXT2_IND_BLOCK] ||
- inode->i_block[EXT2_DIND_BLOCK] ||
- inode->i_block[EXT2_TIND_BLOCK] ||
- inode->i_file_acl) {
+ if (!(inode->i_flags & EXT4_EXTENTS_FL)) {
+ if (inode->i_block[EXT2_IND_BLOCK])
+ ctx->fs_ind_count++;
+ if (inode->i_block[EXT2_DIND_BLOCK])
+ ctx->fs_dind_count++;
+ if (inode->i_block[EXT2_TIND_BLOCK])
+ ctx->fs_tind_count++;
+ }
+ if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+ (inode->i_block[EXT2_IND_BLOCK] ||
+ inode->i_block[EXT2_DIND_BLOCK] ||
+ inode->i_block[EXT2_TIND_BLOCK] ||
+ inode->i_file_acl)) {
inodes_to_process[process_inode_count].ino = ino;
inodes_to_process[process_inode_count].inode = *inode;
process_inode_count++;
ea_refcount_free(ctx->refcount_extra);
ctx->refcount_extra = 0;
}
-
+
if (ctx->invalid_bitmaps)
handle_fs_bad_blocks(ctx);
e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
"recreate inode");
inode->i_mtime = ctx->now;
- e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
+ e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
"recreate inode");
fs->block_map = save_bmap;
ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
}
-
+
if (ctx->flags & E2F_FLAG_RESTART) {
/*
* Only the master copy of the superblock and block
ext2fs_free_mem(&inodes_to_process);
endit:
e2fsck_use_inode_shortcuts(ctx, 0);
-
+
ext2fs_free_mem(&block_buf);
ext2fs_free_mem(&inode);
-#ifdef RESOURCE_TRACK
- if (ctx->options & E2F_OPT_TIME2) {
- e2fsck_clear_progbar(ctx);
- print_resource_track(_("Pass 1"), &rtrack, ctx->fs->io);
- }
-#endif
+ print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
}
/*
* When the inode_scan routines call this callback at the end of the
* glock group, call process_inodes.
*/
-static errcode_t scan_callback(ext2_filsys fs,
+static errcode_t scan_callback(ext2_filsys fs,
ext2_inode_scan scan EXT2FS_ATTR((unused)),
dgrp_t group, void * priv_data)
{
scan_struct = (struct scan_callback_struct *) priv_data;
ctx = scan_struct->ctx;
-
+
process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
if (ctx->progress)
const char *old_operation;
char buf[80];
struct problem_context pctx;
-
+
#if 0
printf("begin process_inodes: ");
#endif
for (i=0; i < process_inode_count; i++) {
pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
-
+
#if 0
printf("%u ", pctx.ino);
#endif
const struct process_inode_block *ib_b =
(const struct process_inode_block *) b;
int ret;
-
+
ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
ib_b->inode.i_block[EXT2_IND_BLOCK]);
if (ret == 0)
ret = ib_a->inode.i_file_acl - ib_b->inode.i_file_acl;
+ if (ret == 0)
+ ret = ib_a->ino - ib_b->ino;
return ret;
}
if (!ctx->inode_bad_map) {
clear_problem_context(&pctx);
-
+
pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
_("bad inode map"), &ctx->inode_bad_map);
if (pctx.errcode) {
static void alloc_bb_map(e2fsck_t ctx)
{
struct problem_context pctx;
-
+
clear_problem_context(&pctx);
pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
_("inode in bad block map"),
static void alloc_imagic_map(e2fsck_t ctx)
{
struct problem_context pctx;
-
+
clear_problem_context(&pctx);
pctx.errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
_("imagic inode map"),
static _INLINE_ void mark_block_used(e2fsck_t ctx, blk_t block)
{
struct problem_context pctx;
-
+
clear_problem_context(&pctx);
-
+
if (ext2fs_fast_test_block_bitmap(ctx->block_found_map, block)) {
if (!ctx->block_dup_map) {
pctx.errcode = ext2fs_allocate_block_bitmap(ctx->fs,
&ctx->block_dup_map);
if (pctx.errcode) {
pctx.num = 3;
- fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
+ fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
&pctx);
/* Should never get here */
ctx->flags |= E2F_FLAG_ABORT;
* EA blocks that had extra references as accounted for in
* ctx->refcount_extra.
*/
-static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
+static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
char *block_buf, int adjust_sign)
{
struct ext2_ext_attr_header *header;
int count;
clear_problem_context(&pctx);
-
+
ea_refcount_intr_begin(refcount);
while (1) {
if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
entry = (struct ext2_ext_attr_entry *)(header+1);
end = block_buf + fs->blocksize;
while ((char *)entry < end && *(__u32 *)entry) {
+ __u32 hash;
+
if (region_allocate(region, (char *)entry - (char *)header,
EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
goto clear_extattr;
+ break;
}
if ((ctx->ext_attr_ver == 1 &&
(entry->e_name_len == 0 || entry->e_name_index != 0)) ||
entry->e_name_index == 0)) {
if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
goto clear_extattr;
+ break;
}
if (entry->e_value_block != 0) {
if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
goto clear_extattr;
}
+
+ hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
+ entry->e_value_offs);
+
+ if (entry->e_hash != hash) {
+ pctx->num = entry->e_hash;
+ if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
+ goto clear_extattr;
+ entry->e_hash = hash;
+ }
+
entry = EXT2_EXT_ATTR_NEXT(entry);
}
if (region_allocate(region, (char *)entry - (char *)header, 4)) {
/* Returns 1 if bad htree, 0 if OK */
static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
- ext2_ino_t ino EXT2FS_ATTR((unused)),
- struct ext2_inode *inode,
+ ext2_ino_t ino, struct ext2_inode *inode,
char *block_buf)
{
struct ext2_dx_root_info *root;
fix_problem(ctx, PR_1_HTREE_SET, pctx)))
return 1;
- blk = inode->i_block[0];
- if (((blk == 0) ||
- (blk < fs->super->s_first_data_block) ||
- (blk >= fs->super->s_blocks_count)) &&
- fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
- return 1;
+ pctx->errcode = ext2fs_bmap(fs, ino, inode, 0, 0, 0, &blk);
+
+ if ((pctx->errcode) ||
+ (blk == 0) ||
+ (blk < fs->super->s_first_data_block) ||
+ (blk >= fs->super->s_blocks_count)) {
+ if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
+ return 1;
+ else
+ return 0;
+ }
retval = io_channel_read_blk(fs->io, blk, 1, block_buf);
if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
return 1;
-
+
/* XXX should check that beginning matches a directory */
root = (struct ext2_dx_root_info *) (block_buf + 24);
(root->hash_version != EXT2_HASH_TEA) &&
fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
return 1;
-
+
if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
return 1;
if ((root->indirect_levels > 1) &&
fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
return 1;
-
+
return 0;
}
struct ext2_inode *inode, int restart_flag,
const char *source)
{
-
+ inode->i_flags = 0;
inode->i_links_count = 0;
ext2fs_icount_store(ctx->inode_link_info, ino, 0);
inode->i_dtime = ctx->now;
e2fsck_write_inode(ctx, ino, inode, source);
}
+static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
+ struct process_block_struct *pb,
+ blk64_t start_block,
+ ext2_extent_handle_t ehandle)
+{
+ struct ext2fs_extent extent;
+ blk_t blk;
+ e2_blkcnt_t blockcnt;
+ unsigned int i;
+ int is_dir, is_leaf;
+ errcode_t problem;
+ struct ext2_extent_info info;
+
+ pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
+ if (pctx->errcode)
+ return;
+
+ pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
+ &extent);
+ while (!pctx->errcode && info.num_entries-- > 0) {
+ is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
+ is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
+
+ problem = 0;
+ if (extent.e_pblk < ctx->fs->super->s_first_data_block ||
+ extent.e_pblk >= ctx->fs->super->s_blocks_count)
+ problem = PR_1_EXTENT_BAD_START_BLK;
+ else if (extent.e_lblk < start_block)
+ problem = PR_1_OUT_OF_ORDER_EXTENTS;
+ else if (is_leaf &&
+ (extent.e_pblk + extent.e_len) >
+ ctx->fs->super->s_blocks_count)
+ problem = PR_1_EXTENT_ENDS_BEYOND;
+
+ if (problem) {
+ report_problem:
+ pctx->blk = extent.e_pblk;
+ pctx->blk2 = extent.e_lblk;
+ pctx->num = extent.e_len;
+ if (fix_problem(ctx, problem, pctx)) {
+ pctx->errcode =
+ ext2fs_extent_delete(ehandle, 0);
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_extent_delete";
+ return;
+ }
+ pctx->errcode = ext2fs_extent_get(ehandle,
+ EXT2_EXTENT_CURRENT,
+ &extent);
+ if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
+ pctx->errcode = 0;
+ break;
+ }
+ continue;
+ }
+ goto next;
+ }
+
+ if (!is_leaf) {
+ blk = extent.e_pblk;
+ pctx->errcode = ext2fs_extent_get(ehandle,
+ EXT2_EXTENT_DOWN, &extent);
+ if (pctx->errcode) {
+ pctx->str = "EXT2_EXTENT_DOWN";
+ problem = PR_1_EXTENT_HEADER_INVALID;
+ if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
+ goto report_problem;
+ return;
+ }
+ scan_extent_node(ctx, pctx, pb, extent.e_lblk, ehandle);
+ if (pctx->errcode)
+ return;
+ pctx->errcode = ext2fs_extent_get(ehandle,
+ EXT2_EXTENT_UP, &extent);
+ if (pctx->errcode) {
+ pctx->str = "EXT2_EXTENT_UP";
+ return;
+ }
+ mark_block_used(ctx, blk);
+ pb->num_blocks++;
+ goto next;
+ }
+
+ if ((pb->previous_block != 0) &&
+ (pb->previous_block+1 != extent.e_pblk)) {
+ if (ctx->options & E2F_OPT_FRAGCHECK) {
+ char type = '?';
+
+ if (pb->is_dir)
+ type = 'd';
+ else if (pb->is_reg)
+ type = 'f';
+
+ printf(("%6lu(%c): expecting %6lu "
+ "actual extent "
+ "phys %6lu log %lu len %lu\n"),
+ (unsigned long) pctx->ino, type,
+ (unsigned long) pb->previous_block+1,
+ (unsigned long) extent.e_pblk,
+ (unsigned long) extent.e_lblk,
+ (unsigned long) extent.e_len);
+ }
+ pb->fragmented = 1;
+ }
+ for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
+ i < extent.e_len;
+ blk++, blockcnt++, i++) {
+ mark_block_used(ctx, blk);
+
+ if (is_dir) {
+ pctx->errcode = ext2fs_add_dir_block(ctx->fs->dblist, pctx->ino, blk, blockcnt);
+ if (pctx->errcode) {
+ pctx->blk = blk;
+ pctx->num = blockcnt;
+ fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ return;
+ }
+ }
+ }
+ pb->num_blocks += extent.e_len;
+ pb->previous_block = extent.e_pblk + extent.e_len - 1;
+ start_block = extent.e_lblk + extent.e_len - 1;
+ if (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
+ pb->last_block = start_block;
+ next:
+ pctx->errcode = ext2fs_extent_get(ehandle,
+ EXT2_EXTENT_NEXT_SIB,
+ &extent);
+ }
+ if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
+ pctx->errcode = 0;
+}
+
+static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
+ struct process_block_struct *pb)
+{
+ struct ext2_extent_info info;
+ struct ext2_inode *inode = pctx->inode;
+ ext2_extent_handle_t ehandle;
+ ext2_filsys fs = ctx->fs;
+ ext2_ino_t ino = pctx->ino;
+ errcode_t retval;
+
+ pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
+ if (pctx->errcode) {
+ if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
+ e2fsck_clear_inode(ctx, ino, inode, 0,
+ "check_blocks_extents");
+ pctx->errcode = 0;
+ return;
+ }
+
+ retval = ext2fs_extent_get_info(ehandle, &info);
+ if (retval == 0) {
+ if (info.max_depth >= MAX_EXTENT_DEPTH_COUNT)
+ info.max_depth = MAX_EXTENT_DEPTH_COUNT-1;
+ ctx->extent_depth_count[info.max_depth]++;
+ }
+
+ scan_extent_node(ctx, pctx, pb, 0, ehandle);
+ if (pctx->errcode &&
+ fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
+ pb->num_blocks = 0;
+ inode->i_blocks = 0;
+ e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
+ "check_blocks_extents");
+ pctx->errcode = 0;
+ }
+ ext2fs_extent_free(ehandle);
+}
+
/*
* This subroutine is called on each inode to account for all of the
* blocks used by that inode.
struct ext2_inode *inode = pctx->inode;
int bad_size = 0;
int dirty_inode = 0;
+ int extent_fs;
__u64 size;
-
+
pb.ino = ino;
pb.num_blocks = 0;
pb.last_block = -1;
pctx->ino = ino;
pctx->errcode = 0;
+ extent_fs = (ctx->fs->super->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_EXTENTS);
+
if (inode->i_flags & EXT2_COMPRBLK_FL) {
if (fs->super->s_feature_incompat &
EXT2_FEATURE_INCOMPAT_COMPRESSION)
}
}
- if (inode->i_file_acl && check_ext_attr(ctx, pctx, block_buf))
+ if (inode->i_file_acl && check_ext_attr(ctx, pctx, block_buf)) {
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ goto out;
pb.num_blocks++;
+ }
- if (ext2fs_inode_has_valid_blocks(inode))
- pctx->errcode = ext2fs_block_iterate2(fs, ino,
- pb.is_dir ? BLOCK_FLAG_HOLE : 0,
- block_buf, process_block, &pb);
+ if (ext2fs_inode_has_valid_blocks(inode)) {
+ if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
+ check_blocks_extents(ctx, pctx, &pb);
+ else
+ pctx->errcode = ext2fs_block_iterate2(fs, ino,
+ pb.is_dir ? BLOCK_FLAG_HOLE : 0,
+ block_buf, process_block, &pb);
+ }
end_problem_latch(ctx, PR_LATCH_BLOCK);
end_problem_latch(ctx, PR_LATCH_TOOBIG);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
if (pctx->errcode)
fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
- if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group)
- ctx->fs_fragmented++;
+ if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
+ if (LINUX_S_ISDIR(inode->i_mode))
+ ctx->fs_fragmented_dir++;
+ else
+ ctx->fs_fragmented++;
+ }
if (pb.clear) {
e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
"check_blocks");
return;
}
-
+
+ if (pb.is_dir) {
+ while (1) {
+ struct ext2_db_entry *entry;
+
+ if (ext2fs_dblist_get_last(fs->dblist, &entry) ||
+ (entry->ino != ino) ||
+ (entry->blk != 0) ||
+ (entry->blockcnt == 0))
+ break;
+ /* printf("Dropping ino %lu blk %lu blockcnt %d\n",
+ entry->ino, entry->blk, entry->blockcnt); */
+ ext2fs_dblist_drop_last(fs->dblist);
+ if (ext2fs_dblist_get_last(fs->dblist, &entry) ||
+ (entry->ino != ino))
+ pb.last_block--;
+ else
+ pb.last_block = entry->blockcnt;
+ }
+ }
+
if (inode->i_flags & EXT2_INDEX_FL) {
if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
inode->i_flags &= ~EXT2_INDEX_FL;
!(inode->i_flags & EXT2_INDEX_FL) &&
((inode->i_size / fs->blocksize) >= 3))
ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
-
+
if (!pb.num_blocks && pb.is_dir) {
if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
}
}
- pb.num_blocks *= (fs->blocksize / 512);
+ if (!(fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
+ !(inode->i_flags & EXT4_HUGE_FILE_FL))
+ pb.num_blocks *= (fs->blocksize / 512);
#if 0
printf("inode %u, i_size = %lu, last_block = %lld, i_blocks=%lu, num_blocks = %lu\n",
ino, inode->i_size, pb.last_block, inode->i_blocks,
#endif
if (pb.is_dir) {
int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
- if (nblock > (pb.last_block + 1))
+ if (inode->i_size & (fs->blocksize - 1))
+ bad_size = 5;
+ else if (nblock > (pb.last_block + 1))
bad_size = 1;
else if (nblock < (pb.last_block + 1)) {
if (((pb.last_block + 1) - nblock) >
(pb.last_block / blkpg * blkpg != pb.last_block ||
size < (__u64)(pb.last_block & ~(blkpg-1)) *fs->blocksize))
bad_size = 3;
- else if (size > ext2_max_sizes[fs->super->s_log_block_size])
+ else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
+ size > ext2_max_sizes[fs->super->s_log_block_size])
+ /* too big for a direct/indirect-mapped file */
bad_size = 4;
+ else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
+ size >
+ ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
+ /* too big for an extent-based file - 32bit ee_block */
+ bad_size = 6;
}
/* i_size for symlinks is checked elsewhere */
if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
pctx->num = (pb.last_block+1) * fs->blocksize;
+ pctx->group = bad_size;
if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
inode->i_size = pctx->num;
if (!LINUX_S_ISDIR(inode->i_mode))
if (LINUX_S_ISREG(inode->i_mode) &&
(inode->i_size_high || inode->i_size & 0x80000000UL))
ctx->large_files++;
- if (pb.num_blocks != inode->i_blocks) {
+ if ((pb.num_blocks != inode->i_blocks) ||
+ ((fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
+ (inode->i_flags & EXT4_HUGE_FILE_FL) &&
+ (inode->osd2.linux2.l_i_blocks_hi != 0))) {
pctx->num = pb.num_blocks;
if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
inode->i_blocks = pb.num_blocks;
+ inode->osd2.linux2.l_i_blocks_hi = 0;
dirty_inode++;
}
pctx->num = 0;
printf("Missing block (#%d) in directory inode %lu!\n",
blockcnt, p->ino);
#endif
+ p->last_block = blockcnt;
goto mark_dir;
}
return 0;
printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
blockcnt);
#endif
-
+
/*
* Simplistic fragmentation check. We merely require that the
* file be contiguous. (Which can never be true for really
* big files that are greater than a block group.)
*/
- if (!HOLE_BLKADDR(p->previous_block)) {
- if (p->previous_block+1 != blk)
+ if (!HOLE_BLKADDR(p->previous_block) && p->ino != EXT2_RESIZE_INO) {
+ if (p->previous_block+1 != blk) {
+ if (ctx->options & E2F_OPT_FRAGCHECK) {
+ char type = '?';
+
+ if (p->is_dir)
+ type = 'd';
+ else if (p->is_reg)
+ type = 'f';
+
+ printf(_("%6lu(%c): expecting %6lu "
+ "got phys %6lu (blkcnt %lld)\n"),
+ (unsigned long) pctx->ino, type,
+ (unsigned long) p->previous_block+1,
+ (unsigned long) blk,
+ blockcnt);
+ }
p->fragmented = 1;
+ }
}
p->previous_block = blk;
problem = PR_1_TOOBIG_REG;
if (!p->is_dir && !p->is_reg && blockcnt > 0)
problem = PR_1_TOOBIG_SYMLINK;
-
+
if (blk < fs->super->s_first_data_block ||
blk >= fs->super->s_blocks_count)
problem = PR_1_ILLEGAL_BLOCK_NUM;
}
if (p->ino == EXT2_RESIZE_INO) {
- /*
+ /*
* The resize inode has already be sanity checked
* during pass #0 (the superblock checks). All we
* have to do is mark the double indirect block as
if (!blk)
return 0;
-
+
p = (struct process_block_struct *) priv_data;
ctx = p->ctx;
pctx = p->pctx;
-
+
pctx->ino = EXT2_BAD_INO;
pctx->blk = blk;
pctx->blkcount = blockcnt;
*block_nr = 0;
return BLOCK_CHANGED;
}
- } else if (ext2fs_test_block_bitmap(ctx->block_found_map,
+ } else if (ext2fs_test_block_bitmap(ctx->block_found_map,
blk)) {
p->bbcheck = 1;
- if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
+ if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
pctx)) {
*block_nr = 0;
return BLOCK_CHANGED;
mark_block_used(ctx, blk);
return 0;
}
-#if 0
+#if 0
printf ("DEBUG: Marking %u as bad.\n", blk);
#endif
ctx->fs_badblocks_count++;
* Try to find the where the filesystem block was used...
*/
first_block = fs->super->s_first_data_block;
-
+
for (i = 0; i < fs->group_desc_count; i++ ) {
pctx->group = i;
pctx->blk = blk;
return 0;
}
-static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
+static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
const char *name, int num, blk_t *new_block)
{
ext2_filsys fs = ctx->fs;
}
if (ctx->invalid_inode_table_flag[i]) {
new_table_block(ctx, first_block, i, _("inode table"),
- fs->inode_blocks_per_group,
+ fs->inode_blocks_per_group,
&fs->group_desc[i].bg_inode_table);
ctx->flags |= E2F_FLAG_RESTART;
}
dgrp_t i;
int j;
struct problem_context pctx;
-
+
clear_problem_context(&pctx);
-
+
for (i = 0; i < fs->group_desc_count; i++) {
pctx.group = i;
}
}
}
-
+
/*
- * Mark block used for the block bitmap
+ * Mark block used for the block bitmap
*/
if (fs->group_desc[i].bg_block_bitmap) {
if (ext2fs_test_block_bitmap(ctx->block_found_map,
ext2fs_mark_block_bitmap(ctx->block_found_map,
fs->group_desc[i].bg_block_bitmap);
}
-
+
}
/*
- * Mark block used for the inode bitmap
+ * Mark block used for the inode bitmap
*/
if (fs->group_desc[i].bg_inode_bitmap) {
if (ext2fs_test_block_bitmap(ctx->block_found_map,
if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
ctx->invalid_inode_bitmap_flag[i]++;
ctx->invalid_bitmaps++;
- }
+ }
} else {
ext2fs_mark_block_bitmap(ctx->block_found_map,
fs->group_desc[i].bg_inode_bitmap);
}
}
}
-
+
/*
* Thes subroutines short circuits ext2fs_get_blocks and
* ext2fs_check_directory; we use them since we already have the inode
{
e2fsck_t ctx = (e2fsck_t) fs->priv_data;
int i;
-
+
if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
return EXT2_ET_CALLBACK_NOTHANDLED;
return 0;
}
+static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
+ blk64_t *ret)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+ errcode_t retval;
+ blk_t new_block;
+
+ if (ctx->block_found_map) {
+ retval = ext2fs_new_block(fs, (blk_t) goal,
+ ctx->block_found_map, &new_block);
+ if (retval)
+ return retval;
+ } else {
+ if (!fs->block_map) {
+ retval = ext2fs_read_block_bitmap(fs);
+ if (retval)
+ return retval;
+ }
+
+ retval = ext2fs_new_block(fs, (blk_t) goal, 0, &new_block);
+ if (retval)
+ return retval;
+ }
+
+ *ret = new_block;
+ return (0);
+}
+
+static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+
+ if (ctx->block_found_map) {
+ if (inuse > 0)
+ ext2fs_mark_block_bitmap(ctx->block_found_map,
+ (blk_t) blk);
+ else
+ ext2fs_unmark_block_bitmap(ctx->block_found_map,
+ (blk_t) blk);
+ }
+}
+
void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool)
{
ext2_filsys fs = ctx->fs;
fs->read_inode = pass1_read_inode;
fs->write_inode = pass1_write_inode;
ctx->stashed_ino = 0;
+ ext2fs_set_alloc_block_callback(fs, e2fsck_get_alloc_block,
+ 0);
+ ext2fs_set_block_alloc_stats_callback(fs,
+ e2fsck_block_alloc_stats,
+ 0);
} else {
fs->get_blocks = 0;
fs->check_directory = 0;
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff