From: Li Zefan <lizf@cn.fujitsu.com>
To: Paul Jackson <pj@sgi.com>
Cc: akpm@linux-foundation.org, menage@google.com,
seto.hidetoshi@jp.fujitsu.com, laijs@cn.fujitsu.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] cpuset: clean up cpuset hierarchy traversal code
Date: Tue, 29 Jul 2008 09:44:09 +0800 [thread overview]
Message-ID: <488E75E9.9080202@cn.fujitsu.com> (raw)
In-Reply-To: <20080728001205.f3801aca.pj@sgi.com>
Paul Jackson wrote:
> pj wrote:
>> Can you figure out if we are holding any system wide lock, such as
>> cgroup_mutex, at this point?
>
> Nevermind ... this is in rebuild_sched_domains(), which must be
> called with cgroup_mutex held. So we danged well better be holding
> a system wide lock.
>
Yes, and even after Max's patch, the code playing with ->stack_list is
still protected by cgroup_mutex. :)
next prev parent reply other threads:[~2008-07-29 1:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-28 2:47 [PATCH 1/3] cpuset: clean up cpuset hierarchy traversal code Li Zefan
2008-07-28 4:37 ` Paul Jackson
2008-07-28 5:12 ` Paul Jackson
2008-07-29 1:44 ` Li Zefan [this message]
2008-07-28 6:01 ` Paul Jackson
2008-07-28 17:20 ` Max Krasnyansky
2008-07-29 1:25 ` Li Zefan
2008-07-30 10:12 ` Paul Jackson
2008-07-29 1:30 ` Li Zefan
2008-07-29 13:04 ` Paul Jackson
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