Btrfs: use correct key when repeating search for extent item
diff mbox

Message ID 1398348929-1827-1-git-send-email-fdmanana@gmail.com
State Accepted
Headers show

Commit Message

Filipe Manana April 24, 2014, 2:15 p.m. UTC
If skinny metadata is enabled and our first tree search fails to find a
skinny extent item, we may repeat a tree search for a "fat" extent item
(if the previous item in the leaf is not the "fat" extent we're looking
for). However we were not setting the new key's objectid to the right
value, as we previously used the same key variable to peek at the previous
item in the leaf, which has a different objectid. So just set the right
objectid to avoid modifying/deleting a wrong item if we repeat the tree
search.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
---
 fs/btrfs/extent-tree.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
diff mbox

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 1306487..678cb35 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1542,6 +1542,7 @@  again:
 				ret = 0;
 		}
 		if (ret) {
+			key.objectid = bytenr;
 			key.type = BTRFS_EXTENT_ITEM_KEY;
 			key.offset = num_bytes;
 			btrfs_release_path(path);
@@ -5719,6 +5720,7 @@  static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 
 			if (ret > 0 && skinny_metadata) {
 				skinny_metadata = false;
+				key.objectid = bytenr;
 				key.type = BTRFS_EXTENT_ITEM_KEY;
 				key.offset = num_bytes;
 				btrfs_release_path(path);