From: Vladimir Davydov <vdavydov@virtuozzo.com>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH v2 1/5] mm: memcontrol: generalize locking for the page->mem_cgroup binding
Date: Tue, 2 Feb 2016 17:18:25 +0300 [thread overview]
Message-ID: <20160202141825.GB21016@esperanza> (raw)
In-Reply-To: <1454090047-1790-2-git-send-email-hannes@cmpxchg.org>
On Fri, Jan 29, 2016 at 12:54:03PM -0500, Johannes Weiner wrote:
> So far the only sites that needed to exclude charge migration to
> stabilize page->mem_cgroup have been per-cgroup page statistics, hence
> the name mem_cgroup_begin_page_stat(). But per-cgroup thrash detection
> will add another site that needs to ensure page->mem_cgroup lifetime.
>
> Rename these locking functions to the more generic lock_page_memcg()
> and unlock_page_memcg(). Since charge migration is a cgroup1 feature
> only, we might be able to delete it at some point, and these now easy
> to identify locking sites along with it.
>
> Suggested-by: Vladimir Davydov <vdavydov@virtuozzo.com>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com>
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next prev parent reply other threads:[~2016-02-02 14:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-29 17:54 [PATCH v2 0/5] mm: workingset: per-cgroup thrash detection Johannes Weiner
2016-01-29 17:54 ` [PATCH v2 1/5] mm: memcontrol: generalize locking for the page->mem_cgroup binding Johannes Weiner
2016-02-02 14:18 ` Vladimir Davydov [this message]
2016-01-29 17:54 ` [PATCH v2 2/5] mm: workingset: #define radix entry eviction mask Johannes Weiner
2016-01-29 17:54 ` [PATCH v2 3/5] mm: workingset: separate shadow unpacking and refault calculation Johannes Weiner
2016-01-29 17:54 ` [PATCH v2 4/5] mm: workingset: eviction buckets for bigmem/lowbit machines Johannes Weiner
2016-01-29 17:54 ` [PATCH v2 5/5] mm: workingset: per-cgroup cache thrash detection Johannes Weiner
2016-02-02 14:34 ` Vladimir Davydov
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