linux-kernel - Re: [PATCH] Fix warning in mm/slub.c

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Message-ID: <84144f020710230052t3dc7e402ka2d8ede6db81618a@mail.gmail.com>
Date:	Tue, 23 Oct 2007 10:52:28 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Yasunori Goto" <y-goto@...fujitsu.com>
Cc:	"Olof Johansson" <olof@...om.net>, "Andrew Morton" <akpm@...l.org>,
	"Christoph Lameter" <clameter@....com>,
	"Linux Kernel ML" <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH] Fix warning in mm/slub.c

Hi,

On 10/23/07, Yasunori Goto <y-goto@...fujitsu.com> wrote:
> > "Make kmem_cache_node for SLUB on memory online to avoid panic" introduced
> > the following:
> >
> > mm/slub.c:2737: warning: passing argument 1 of 'atomic_read' from
> > incompatible pointer type
> >
> >
> > Signed-off-by: Olof Johansson <olof@...om.net>
> >
> >
> > diff --git a/mm/slub.c b/mm/slub.c
> > index aac1dd3..bcdb2c8 100644
> > --- a/mm/slub.c
> > +++ b/mm/slub.c
> > @@ -2734,7 +2734,7 @@ static void slab_mem_offline_callback(void *arg)
> >                        * and offline_pages() function shoudn't call this
> >                        * callback. So, we must fail.
> >                        */
> > -                     BUG_ON(atomic_read(&n->nr_slabs));
> > +                     BUG_ON(atomic_long_read(&n->nr_slabs));
> >
> >                       s->node[offline_node] = NULL;
> >                       kmem_cache_free(kmalloc_caches, n);
>
>
> Oops, yes. Thanks.
>
> Acked-by: Yasunori Goto <y-goto@...fujitsu.com>

Reviewed-by: Pekka Enberg <penberg@...helsinki.fi>
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