From: Li Zefan <lizefan@huawei.com>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] cpuset: Add missing rcu read locks
Date: Mon, 3 Mar 2014 16:32:46 +0800 [thread overview]
Message-ID: <53143E2E.6010302@huawei.com> (raw)
In-Reply-To: <1393510855-8771-1-git-send-email-sasha.levin@oracle.com>
On 2014/2/27 22:20, Sasha Levin wrote:
> We call task_cs() which ends up going into cgroup code without having rcu
> read lock. Fix it by grabbing the lock before retrival of task_cs() and usage
> of the result.
>
Thanks for the patch.
Fengguang already reported it, and I've made a patch for it, but I was fixing
two bugs for 3.14 and then waiting for them to be applied.
There're other places that rcu_read_lock() should be used, and we need to
remove task_lock().
prev parent reply other threads:[~2014-03-03 8:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 14:20 [PATCH] cpuset: Add missing rcu read locks Sasha Levin
2014-03-03 8:32 ` Li Zefan [this message]
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