Btrfs: Properly update right_nritems in push_leaf_left

The codes that fixup the right leaf and the codes that dirty the
extnet buffer use the variable 'right_nritems' ,  both of them expect
'right_nritems' is the number of items in right leaf after the push.

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

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 1b47fe71e0b4..3b16051b121b 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1717,11 +1717,10 @@ static int push_leaf_left(struct btrfs_trans_handle *trans, struct btrfs_root
                               btrfs_item_nr_offset(push_items),
                              (btrfs_header_nritems(right) - push_items) *
                              sizeof(struct btrfs_item));
-
         }
-        btrfs_set_header_nritems(right, right_nritems - push_items);
+        right_nritems -= push_items;
+        btrfs_set_header_nritems(right, right_nritems);
         push_space = BTRFS_LEAF_DATA_SIZE(root);
-
         for (i = 0; i < right_nritems; i++) {
                 item = btrfs_item_nr(right, i);