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Btrfs: add checks to verify dir items are correct

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We need to make sure the dir items we get are valid dir items.  So any time we
try and read one check it with verify_dir_item, which will do various sanity
checks to make sure it looks sane.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
This commit is contained in:
Josef Bacik
2011-03-16 16:47:17 -04:00
parent 41415730a1
commit 22a94d44bd
5 changed files with 50 additions and 0 deletions
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3
fs/btrfs/ctree.h
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@@ -2393,6 +2393,9 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
struct btrfs_path *path, u64 dir,
const char *name, u16 name_len,
int mod);
int verify_dir_item(struct btrfs_root *root,
struct extent_buffer *leaf,
struct btrfs_dir_item *dir_item);
/* orphan.c */
int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,