Btrfs: properly reset block cache on free

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 21f39b40469785f0be48a2a3771053e86eab3395..7f156d9b7089f505deb688a1ffeb4ff77fe22108 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -182,7 +182,7 @@ static int __free_extent(struct btrfs_root *root, u64 blocknr, u64 num_blocks)
                }
                ret = btrfs_del_item(extent_root, &path);
                if (root != extent_root &&
-                   extent_root->last_insert.objectid < blocknr)
+                   extent_root->last_insert.objectid > blocknr)
                        extent_root->last_insert.objectid = blocknr;
                if (ret)
                        BUG();