diff mbox series

[08/20] xfs: xfs_buf: drop useless LIST_HEAD

Message ID 1545555435-24576-9-git-send-email-Julia.Lawall@lip6.fr (mailing list archive)
State Accepted
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 has never
been used.

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

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

Fixes: 26f1fe858f274 ("xfs: reduce lock hold times in buffer writeback")
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

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

 fs/xfs/xfs_buf.c |    1 -
 1 file changed, 1 deletion(-)

Comments

Darrick J. Wong Dec. 23, 2018, 10:51 p.m. UTC | #1
On Sun, Dec 23, 2018 at 09:57:03AM +0100, Julia Lawall wrote:
> Drop LIST_HEAD where the variable it declares has never
> been used.
> 
> The semantic patch that fixes this problem is as follows:
> (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> identifier x;
> @@
> - LIST_HEAD(x);
>   ... when != x
> // </smpl>
> 
> Fixes: 26f1fe858f274 ("xfs: reduce lock hold times in buffer writeback")
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

Looks ok; are you planning to push this whole series directly to Linus
or do you want me to take the two xfs patches through?

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> 
> ---
> Successfully 0-day tested on 151 configurations.
> 
>  fs/xfs/xfs_buf.c |    1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> index b21ea2ba768d..eedc5e0156ff 100644
> --- a/fs/xfs/xfs_buf.c
> +++ b/fs/xfs/xfs_buf.c
> @@ -1992,7 +1992,6 @@ xfs_buf_delwri_submit_buffers(
>  	struct list_head	*wait_list)
>  {
>  	struct xfs_buf		*bp, *n;
> -	LIST_HEAD		(submit_list);
>  	int			pinned = 0;
>  	struct blk_plug		plug;
>  
>
Julia Lawall Dec. 24, 2018, 6:32 a.m. UTC | #2
On Sun, 23 Dec 2018, Darrick J. Wong wrote:

> On Sun, Dec 23, 2018 at 09:57:03AM +0100, Julia Lawall wrote:
> > Drop LIST_HEAD where the variable it declares has never
> > been used.
> >
> > The semantic patch that fixes this problem is as follows:
> > (http://coccinelle.lip6.fr/)
> >
> > // <smpl>
> > @@
> > identifier x;
> > @@
> > - LIST_HEAD(x);
> >   ... when != x
> > // </smpl>
> >
> > Fixes: 26f1fe858f274 ("xfs: reduce lock hold times in buffer writeback")
> > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
>
> Looks ok; are you planning to push this whole series directly to Linus
> or do you want me to take the two xfs patches through?

Please take them.  Thanks.

julia

>
> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
>
> --D
>
> >
> > ---
> > Successfully 0-day tested on 151 configurations.
> >
> >  fs/xfs/xfs_buf.c |    1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
> > index b21ea2ba768d..eedc5e0156ff 100644
> > --- a/fs/xfs/xfs_buf.c
> > +++ b/fs/xfs/xfs_buf.c
> > @@ -1992,7 +1992,6 @@ xfs_buf_delwri_submit_buffers(
> >  	struct list_head	*wait_list)
> >  {
> >  	struct xfs_buf		*bp, *n;
> > -	LIST_HEAD		(submit_list);
> >  	int			pinned = 0;
> >  	struct blk_plug		plug;
> >
> >
>
diff mbox series

Patch

diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index b21ea2ba768d..eedc5e0156ff 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1992,7 +1992,6 @@  xfs_buf_delwri_submit_buffers(
 	struct list_head	*wait_list)
 {
 	struct xfs_buf		*bp, *n;
-	LIST_HEAD		(submit_list);
 	int			pinned = 0;
 	struct blk_plug		plug;