From: Vladimir Davydov <vdavydov@virtuozzo.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Tejun Heo <tj@kernel.org>,
Mel Gorman <mgorman@techsingularity.net>,
cgroups@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: memcontrol: avoid unused function warning
Date: Wed, 24 Aug 2016 12:18:39 +0300 [thread overview]
Message-ID: <20160824091839.GE1863@esperanza> (raw)
In-Reply-To: <20160824082301.632345-1-arnd@arndb.de>
On Wed, Aug 24, 2016 at 10:22:43AM +0200, Arnd Bergmann wrote:
> A bugfix in v4.8-rc2 introduced a harmless warning when CONFIG_MEMCG_SWAP
> is disabled but CONFIG_MEMCG is enabled:
>
> mm/memcontrol.c:4085:27: error: 'mem_cgroup_id_get_online' defined but not used [-Werror=unused-function]
> static struct mem_cgroup *mem_cgroup_id_get_online(struct mem_cgroup *memcg)
>
> This adds an extra #ifdef that matches the one around the caller to
> avoid the warning.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Fixes: 1f47b61fb407 ("mm: memcontrol: fix swap counter leak on swapout from offline cgroup")
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
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prev parent reply other threads:[~2016-08-24 9:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-24 8:22 Arnd Bergmann
2016-08-24 8:41 ` Michal Hocko
2016-08-24 9:18 ` Vladimir Davydov [this message]
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