Date: Tue, 26 May 2015 20:34:07 -0400
From: Tejun Heo <tj@kernel.org>
To: lizefan@huawei.com
Cc: cgroups@vger.kernel.org, mingo@redhat.com, peterz@infradead.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCHSET] cgroup, sched: restructure threadgroup locking and
 replace it with a percpu_rwsem
Message-ID: <20150527003407.GM7099@htj.duckdns.org>
References: <1431549318-16756-1-git-send-email-tj@kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1431549318-16756-1-git-send-email-tj@kernel.org>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 727
Lines: 19

On Wed, May 13, 2015 at 04:35:15PM -0400, Tejun Heo wrote:
> threadgroup locking was added because cgroup needs threadgroups to
> stay stable across attach operations.  It was implemented as a
> per-signal_struct generic locking mechanism so that other users which
> require threadgroups stable across blocking operations can use it too;
> however, it hasn't grown any other use cases and still conditionalized
> on CONFIG_CGROUPS.

Applying to cgroups/for-4.2.

Thanks.

-- 
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/