From: Aristeu Rozanski <aris-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Jerry Snitselaar
<jerry.snitselaar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] device_cgroup: don't grab mutex in rcu callback
Date: Wed, 23 Jan 2013 13:39:12 -0500 [thread overview]
Message-ID: <20130123183911.GK17632@redhat.com> (raw)
In-Reply-To: <1358961426-8482-1-git-send-email-jerry.snitselaar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
On Wed, Jan 23, 2013 at 10:17:06AM -0700, Jerry Snitselaar wrote:
> commit 103a197 "security/device_cgroup: lock assert fails in
> dev_exception_clean()" grabs devcgroup_mutex to fix assert failure,
> but mutex can't be grabbed in rcu callback. Since there shouldn't be
> any other references when css_free is called, mutex isn't needed for
> list cleanup in devcgroup_css_free().
Acked-by: Aristeu Rozanski <aris-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
--
Aristeu
next prev parent reply other threads:[~2013-01-23 18:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-23 17:17 [PATCH] device_cgroup: don't grab mutex in rcu callback Jerry Snitselaar
[not found] ` <1358961426-8482-1-git-send-email-jerry.snitselaar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2013-01-23 17:18 ` Tejun Heo
2013-01-23 18:39 ` Aristeu Rozanski [this message]
-- strict thread matches above, loose matches on Subject: below --
2013-01-23 18:00 Jerry Snitselaar
2013-02-14 16:46 Jerry Snitselaar
2013-02-14 16:46 ` Jerry Snitselaar
[not found] ` <1360860363-2879-1-git-send-email-jerry.snitselaar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2013-02-14 16:48 ` Tejun Heo
2013-02-14 16:48 ` Tejun Heo
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