linux-kernel - Re: [PATCH 08/20] xfs: xfs_buf: drop useless LIST

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Message-ID: <alpine.DEB.2.21.1812240732160.3054@hadrien>
Date:   Mon, 24 Dec 2018 07:32:33 +0100 (CET)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
cc:     kernel-janitors@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/20] xfs: xfs_buf: drop useless LIST_HEAD



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@...6.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@...cle.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;
> >
> >
>