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authorJosef Bacik <josef@redhat.com>2011-03-16 13:42:43 -0400
committerJosef Bacik <josef@redhat.com>2011-03-17 14:21:37 -0400
commita826d6dcb32d811b4c81df57a5ef1367516586b0 (patch)
tree4853d5acf6cde4dfb0eeb19f5c74dc3d7934359b /fs/btrfs/extent_io.h
parent850265335f792f5d39ab24e5fb7160bac28d77e5 (diff)
Btrfs: check items for correctness as we search
Currently if we have corrupted items things will blow up in spectacular ways. So as we read in blocks and they are leaves, check the entire leaf to make sure all of the items are correct and point to valid parts in the leaf for the item data the are responsible for. If the item is corrupt we will kick back EIO and not read any of the copies since they are likely to not be correct either. This will catch generic corruptions, it will be up to the individual callers of btrfs_search_slot to make sure their items are right. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 9318dfefd59..f62c5442835 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -31,6 +31,7 @@
#define EXTENT_BUFFER_UPTODATE 0
#define EXTENT_BUFFER_BLOCKING 1
#define EXTENT_BUFFER_DIRTY 2
+#define EXTENT_BUFFER_CORRUPT 3
/* these are flags for extent_clear_unlock_delalloc */
#define EXTENT_CLEAR_UNLOCK_PAGE 0x1