From: Andrew Morton <akpm@linux-foundation.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: Li Zefan <lizf@cn.fujitsu.com>,
linux-mm@kvack.org,
"bsingharora@gmail.com" <bsingharora@gmail.com>,
Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Cgroups <cgroups@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Kirill A. Shutemov" <kirill@shutemov.name>
Subject: Re: [PATCH] memcg: fix compile warning on non-numa systems
Date: Thu, 26 Jan 2012 00:55:21 -0800 [thread overview]
Message-ID: <20120126005521.07ac0faf.akpm@linux-foundation.org> (raw)
In-Reply-To: <20120116084715.GA1639@tiehlicka.suse.cz>
On Mon, 16 Jan 2012 09:47:15 +0100 Michal Hocko <mhocko@suse.cz> wrote:
> On Mon 16-01-12 14:04:53, Li Zefan wrote:
> > Fix this warning:
> >
> > CC mm/memcontrol.o
> > mm/memcontrol.c: In function 'memcg_check_events':
> > mm/memcontrol.c:779:22: warning: unused variable 'do_numainfo'
>
> This has been already posted by Kirill and I didn't like the solution
> (https://lkml.org/lkml/2011/12/27/86). He then reposted with a different
> version (https://lkml.org/lkml/2012/1/6/281).
> The later one looks better but I still think this is not worth
> complicate the code just to get rid of this warning.
This?
--- a/mm/memcontrol.c~a
+++ a/mm/memcontrol.c
@@ -776,7 +776,8 @@ static void memcg_check_events(struct me
/* threshold event is triggered in finer grain than soft limit */
if (unlikely(mem_cgroup_event_ratelimit(memcg,
MEM_CGROUP_TARGET_THRESH))) {
- bool do_softlimit, do_numainfo;
+ bool do_softlimit;
+ bool do_numainfo __maybe_unused;
do_softlimit = mem_cgroup_event_ratelimit(memcg,
MEM_CGROUP_TARGET_SOFTLIMIT);
_
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next prev parent reply other threads:[~2012-01-26 8:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-16 6:04 [PATCH] memcg: fix compile warning on non-numa systems Li Zefan
2012-01-16 8:47 ` Michal Hocko
2012-01-26 8:55 ` Andrew Morton [this message]
2012-01-26 8:54 ` Kirill A. Shutemov
2012-01-26 9:01 ` Michal Hocko
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