2014-01-01 05:21:12

by Michal Nazarewicz

[permalink] [raw]
Subject: [PATCH RESEND] btrfs: remove dead code

[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 <[email protected]>
Reviewed-By: Filipe David Borba Manana <[email protected]>
---
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


2014-01-01 15:01:39

by Filipe Manana

[permalink] [raw]
Subject: Re: [PATCH RESEND] btrfs: remove dead code

On Wed, Jan 1, 2014 at 5:19 AM, Michal Nazarewicz <[email protected]> wrote:
> [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 <[email protected]>
> Reviewed-By: Filipe David Borba Manana <[email protected]>
> ---
> 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

Hi Michal,

Josef already added this patch to btrfs-next weeks ago:

http://git.kernel.org/cgit/linux/kernel/git/josef/btrfs-next.git/commit/?id=c4a886e433dce2b902324a54ef2d13691a760312

regards,

>
> --
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--
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."

2014-01-02 15:24:17

by David Sterba

[permalink] [raw]
Subject: Re: [PATCH RESEND] btrfs: remove dead code

On Wed, Jan 01, 2014 at 05:22:18PM +0100, Michal Nazarewicz wrote:
> > On Wed, Jan 1, 2014 at 5:19 AM, Michal Nazarewicz <[email protected]> wrote:
> >> [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.
>
> On Wed, Jan 01 2014, Filipe David Manana wrote:
> > Josef already added this patch to btrfs-next weeks ago:
> >
> > http://git.kernel.org/cgit/linux/kernel/git/josef/btrfs-next.git/commit/?id=c4a886e433dce2b902324a54ef2d13691a760312
>
> Ah, sorry for the spam then.
>
> The original thread did not mention it and this commit was not included
> in linux-next's master branch.

FYI, the patches get merged to btrfs-next without confirmations to the
mailiglist, the linux-next tree does not merge the development branches,
only when Chris publishes a branch named 'next'.
(http://linux.f-seidel.de/linux-next/pmwiki/pmwiki.php?n=Linux-next.IncludedTrees)

david