btrfs: get fs_info from trans in push_node_left

We can read fs_info from the transaction and can drop it from the
parameters.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 0998e7f..7d2223c 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -21,7 +21,6 @@ static int split_leaf(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                      const struct btrfs_key *ins_key, struct btrfs_path *path,
                      int data_size, int extend);
 static int push_node_left(struct btrfs_trans_handle *trans,
-                         struct btrfs_fs_info *fs_info,
                          struct extent_buffer *dst,
                          struct extent_buffer *src, int empty);
 static int balance_node_right(struct btrfs_trans_handle *trans,
@@ -1935,7 +1934,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
        /* first, try to make some room in the middle buffer */
        if (left) {
                orig_slot += btrfs_header_nritems(left);
-               wret = push_node_left(trans, fs_info, left, mid, 1);
+               wret = push_node_left(trans, left, mid, 1);
                if (wret < 0)
                        ret = wret;
        }
@@ -1944,7 +1943,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
         * then try to empty the right most buffer into the middle
         */
        if (right) {
-               wret = push_node_left(trans, fs_info, mid, right, 1);
+               wret = push_node_left(trans, mid, right, 1);
                if (wret < 0 && wret != -ENOSPC)
                        ret = wret;
                if (btrfs_header_nritems(right) == 0) {
@@ -1986,7 +1985,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
                        goto enospc;
                }
                if (wret == 1) {
-                       wret = push_node_left(trans, fs_info, left, mid, 1);
+                       wret = push_node_left(trans, left, mid, 1);
                        if (wret < 0)
                                ret = wret;
                }
@@ -2097,8 +2096,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans,
                        if (ret)
                                wret = 1;
                        else {
-                               wret = push_node_left(trans, fs_info,
-                                                     left, mid, 0);
+                               wret = push_node_left(trans, left, mid, 0);
                        }
                }
                if (wret < 0)
@@ -3211,10 +3209,10 @@ void btrfs_set_item_key_safe(struct btrfs_fs_info *fs_info,
  * error, and > 0 if there was no room in the left hand block.
  */
 static int push_node_left(struct btrfs_trans_handle *trans,
-                         struct btrfs_fs_info *fs_info,
                          struct extent_buffer *dst,
                          struct extent_buffer *src, int empty)
 {
+       struct btrfs_fs_info *fs_info = trans->fs_info;
        int push_items = 0;
        int src_nritems;
        int dst_nritems;