[PATCH v3] btrfs: removed unused return variable

[PATCH v3] btrfs: removed unused return variable

[Aliasgar Surti]

From: Aliasgar Surti <aliasgar.surti500@gmail.com>

Removed unused return variable and replaced it with returning
the value directly. Also removed the unnecessary forward declaration.

Signed-off-by: Aliasgar Surti <aliasgar.surti500@gmail.com>
---
v2: Made btrfs_destroy_delayed_refs() as void and removed its declaration
v3: Reverted back the change where the function was made void from int
---
 fs/btrfs/disk-io.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 044981c..e381368 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -52,8 +52,6 @@
 static const struct extent_io_ops btree_extent_io_ops;
 static void end_workqueue_fn(struct btrfs_work *work);
 static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
-static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
-				      struct btrfs_fs_info *fs_info);
 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
 static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
 					struct extent_io_tree *dirty_pages,
@@ -4255,7 +4253,6 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 	struct rb_node *node;
 	struct btrfs_delayed_ref_root *delayed_refs;
 	struct btrfs_delayed_ref_node *ref;
-	int ret = 0;
 
 	delayed_refs = &trans->delayed_refs;
 
@@ -4263,7 +4260,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 	if (atomic_read(&delayed_refs->num_entries) == 0) {
 		spin_unlock(&delayed_refs->lock);
 		btrfs_info(fs_info, "delayed_refs has NO entry");
-		return ret;
+		return 0;
 	}
 
 	while ((node = rb_first_cached(&delayed_refs->href_root)) != NULL) {
@@ -4306,8 +4303,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 	}
 
 	spin_unlock(&delayed_refs->lock);
-
-	return ret;
+	return 0;
 }
 
 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root)
-- 
2.7.4