linux-kernel - Re: [PATCH] btrfs: remove dead code

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Date:	Fri, 29 Nov 2013 20:00:42 +0000
From:	Filipe David Manana <fdmanana@...il.com>
To:	Michal Nazarewicz <mpn@...gle.com>
Cc:	Chris Mason <chris.mason@...ionio.com>,
	"linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] btrfs: remove dead code

On Fri, Nov 29, 2013 at 5:01 PM, Michal Nazarewicz <mpn@...gle.com> wrote:
> From: Michal Nazarewicz <mina86@...a86.com>
>
> [commit 8185554d: fix incorrect inode acl reset] introduced a dead
> code by adding a condition which can never be true to an else
> branch.  The condition can never be true because it is already
> checked by a previous if statement which causes function to return.
>
> Signed-off-by: Michal Nazarewicz <mina86@...a86.com>

Reviewed-By: Filipe David Borba Manana <fdmanana@...il.com>

> ---
>  fs/btrfs/acl.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
> index 0890c83..460f36b 100644
> --- a/fs/btrfs/acl.c
> +++ b/fs/btrfs/acl.c
> @@ -225,13 +225,8 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans,
>                 ret = posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
>                 if (ret < 0)
>                         return ret;
> -
> -               if (ret > 0) {
> -                       /* we need an acl */
> +               if (ret > 0) /* we need an acl */
>                         ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
> -               } else if (ret < 0) {
> -                       cache_no_acl(inode);
> -               }
>         } else {
>                 cache_no_acl(inode);
>         }
> --
> 1.8.4.1
>



-- 
Filipe David Manana,

"Reasonable men adapt themselves to the world.
 Unreasonable men adapt the world to themselves.
 That's why all progress depends on unreasonable men."
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