btrfs: send: remove indirect callback parameter for changed_cb

There's a custom callback passed to btrfs_compare_trees which happens to
be named exactly same as the existing function implementing it. This is
confusing and the indirection is not necessary for our needs. Compiler
is clever enough to call it directly so there's effectively no change.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index d9813a5b075aca670d53ae985fbce041befc34b0..7c7c09fc65e8e5329169d078c07dbedc8cb714c5 100644 (file)
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -278,11 +278,6 @@ enum btrfs_compare_tree_result {
        BTRFS_COMPARE_TREE_CHANGED,
        BTRFS_COMPARE_TREE_SAME,
 };
-typedef int (*btrfs_changed_cb_t)(struct btrfs_path *left_path,
-                                 struct btrfs_path *right_path,
-                                 struct btrfs_key *key,
-                                 enum btrfs_compare_tree_result result,
-                                 void *ctx);
 
 __cold
 static void inconsistent_snapshot_error(struct send_ctx *sctx,
@@ -6692,8 +6687,7 @@ static int tree_compare_item(struct btrfs_path *left_path,
  * If it detects a change, it aborts immediately.
  */
 static int btrfs_compare_trees(struct btrfs_root *left_root,
-                       struct btrfs_root *right_root,
-                       btrfs_changed_cb_t changed_cb, void *ctx)
+                       struct btrfs_root *right_root, void *ctx)
 {
        struct btrfs_fs_info *fs_info = left_root->fs_info;
        int ret;
@@ -6960,8 +6954,7 @@ static int send_subvol(struct send_ctx *sctx)
                goto out;
 
        if (sctx->parent_root) {
-               ret = btrfs_compare_trees(sctx->send_root, sctx->parent_root,
-                               changed_cb, sctx);
+               ret = btrfs_compare_trees(sctx->send_root, sctx->parent_root, sctx);
                if (ret < 0)
                        goto out;
                ret = finish_inode_if_needed(sctx, 1);