btrfs_drop_extents: handle BTRFS_INODE_REF_KEY types

It's possible "key.type == BTRFS_INODE_REF_KEY" and "key.offset >= end".

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

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 184bde1..bfa4149 100644 (file)
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -507,11 +507,12 @@ next_slot:
                slot = path->slots[0];
                ret = 0;
                btrfs_item_key_to_cpu(leaf, &key, slot);
-
-               if (key.offset >= end || key.objectid != inode->i_ino) {
+               if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY &&
+                   key.offset >= end) {
                        goto out;
                }
-               if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY) {
+               if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY ||
+                   key.objectid != inode->i_ino) {
                        goto out;
                }
                if (recow) {