Btrfs: dirindex optimizations
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index b1629a5..0ee9945 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -92,6 +92,7 @@
int cow = mod != 0;
struct btrfs_disk_key *found_key;
struct btrfs_leaf *leaf;
+ u32 overflow;
key.objectid = dir;
key.flags = 0;
@@ -119,8 +120,10 @@
if (btrfs_match_dir_item_name(root, path, name, name_len))
return 0;
- if (btrfs_disk_key_overflow(found_key) == 0)
+ overflow = btrfs_disk_key_overflow(found_key);
+ if (overflow == 0)
return 1;
+ btrfs_set_key_overflow(&key, overflow - 1);
btrfs_release_path(root, path);
}
return 1;