diff mbox series

[11/20] Btrfs: drop useless LIST_HEAD

Message ID 1545555435-24576-12-git-send-email-Julia.Lawall@lip6.fr (mailing list archive)
State New, archived
Headers show
Series drop useless LIST_HEAD | expand

Commit Message

Julia Lawall Dec. 23, 2018, 8:57 a.m. UTC
Drop LIST_HEAD where the variable it declares is never used.

The uses were removed in 3fd0a5585eb9 ("Btrfs: Metadata ENOSPC
handling for balance"), but not the declaration.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier x;
@@
- LIST_HEAD(x);
  ... when != x
// </smpl>

Fixes: 3fd0a5585eb9 ("Btrfs: Metadata ENOSPC handling for balance")
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
Successfully 0-day tested on 151 configurations.

 fs/btrfs/relocation.c |    1 -
 1 file changed, 1 deletion(-)

Comments

David Sterba Jan. 2, 2019, 4:40 p.m. UTC | #1
On Sun, Dec 23, 2018 at 09:57:06AM +0100, Julia Lawall wrote:
> Drop LIST_HEAD where the variable it declares is never used.
> 
> The uses were removed in 3fd0a5585eb9 ("Btrfs: Metadata ENOSPC
> handling for balance"), but not the declaration.
> 
> The semantic patch that fixes this problem is as follows:
> (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> @@
> - LIST_HEAD(x);
>   ... when != x
> // </smpl>
> 
> Fixes: 3fd0a5585eb9 ("Btrfs: Metadata ENOSPC handling for balance")
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

Added to patch queue, thanks. I've dropepd the Fixes: line as it's not
really a fix that would need to go to stable. The original commit is
mentioned in the changelog which is IMHO sufficient.
diff mbox series

Patch

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 272b287f8cf0..de802ba35a34 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2128,7 +2128,6 @@  static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
 					       struct btrfs_root *root)
 {
 	struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;
-	LIST_HEAD(inode_list);
 	struct btrfs_key key;
 	struct btrfs_key next_key;
 	struct btrfs_trans_handle *trans = NULL;