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From: Tejun Heo <tj@kernel.org>
To: Glauber Costa <glommer@parallels.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	cgroups@vger.kernel.org, linux-mm@kvack.org, devel@openvz.org,
	kamezawa.hiroyu@jp.fujitsu.com, netdev@vger.kernel.org,
	Li Zefan <lizefan@huawei.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.cz>
Subject: Re: [PATCH v5 2/2] decrement static keys on real destroy time
Date: Thu, 17 May 2012 08:19:47 -0700	[thread overview]
Message-ID: <20120517151947.GI21275@google.com> (raw)
In-Reply-To: <4FB4CA4D.50608@parallels.com>

On Thu, May 17, 2012 at 01:52:13PM +0400, Glauber Costa wrote:
> Andrew is right. It seems we will need that mutex after all. Just
> this is not a race, and neither something that should belong in the
> static_branch interface.

Yeah, with a completely different comment.  It just needs to wrap
->activated alteration and static key inc/dec, right?

Thanks.

-- 
tejun

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  parent reply	other threads:[~2012-05-17 15:19 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-11 20:11 [PATCH v5 0/2] fix static_key disabling problem in memcg Glauber Costa
2012-05-11 20:11 ` Glauber Costa
2012-05-11 20:11 ` [PATCH v5 1/2] Always free struct memcg through schedule_work() Glauber Costa
2012-05-11 20:11   ` Glauber Costa
2012-05-11 20:11   ` Glauber Costa
     [not found]   ` <1336767077-25351-2-git-send-email-glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-14  0:56     ` KAMEZAWA Hiroyuki
2012-05-14  0:56       ` KAMEZAWA Hiroyuki
2012-05-11 20:11 ` [PATCH v5 2/2] decrement static keys on real destroy time Glauber Costa
2012-05-11 20:11   ` Glauber Costa
2012-05-11 20:11   ` Glauber Costa
     [not found]   ` <1336767077-25351-3-git-send-email-glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-14  0:59     ` KAMEZAWA Hiroyuki
2012-05-14  0:59       ` KAMEZAWA Hiroyuki
     [not found]       ` <4FB058D8.6060707-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2012-05-16  6:03         ` Glauber Costa
2012-05-16  6:03           ` Glauber Costa
2012-05-16  6:03           ` Glauber Costa
     [not found]           ` <4FB3431C.3050402-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-16  7:04             ` Glauber Costa
2012-05-16  7:04               ` Glauber Costa
2012-05-16  7:04               ` Glauber Costa
     [not found]               ` <4FB3518B.3090205-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-16  8:28                 ` KAMEZAWA Hiroyuki
2012-05-16  8:28                   ` KAMEZAWA Hiroyuki
     [not found]                   ` <4FB3652D.2040909-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2012-05-16  8:30                     ` Glauber Costa
2012-05-16  8:30                       ` Glauber Costa
2012-05-16  8:30                       ` Glauber Costa
2012-05-16  8:37                     ` Glauber Costa
2012-05-16  8:37                       ` Glauber Costa
2012-05-16  8:37                       ` Glauber Costa
2012-05-14  1:38     ` Li Zefan
2012-05-14  1:38       ` Li Zefan
     [not found]       ` <4FB0621C.3010604-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2012-05-16  7:03         ` Glauber Costa
2012-05-16  7:03           ` Glauber Costa
2012-05-16  7:03           ` Glauber Costa
2012-05-16 20:57           ` Andrew Morton
2012-05-16 20:57             ` Andrew Morton
2012-05-14 18:12     ` Tejun Heo
2012-05-14 18:12       ` Tejun Heo
2012-05-16 21:06     ` Andrew Morton
2012-05-16 21:06       ` Andrew Morton
2012-05-16 21:06       ` Andrew Morton
2012-05-17  3:06       ` Glauber Costa
2012-05-17  3:06         ` Glauber Costa
2012-05-17  3:06         ` Glauber Costa
     [not found]         ` <4FB46B4C.3000307-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-17  5:37           ` Andrew Morton
2012-05-17  5:37             ` Andrew Morton
2012-05-17  5:37             ` Andrew Morton
     [not found]             ` <20120516223715.5d1b4385.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2012-05-17  9:52               ` Glauber Costa
2012-05-17  9:52                 ` Glauber Costa
2012-05-17  9:52                 ` Glauber Costa
2012-05-17 10:18                 ` KAMEZAWA Hiroyuki
     [not found]                   ` <4FB4D061.10406-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2012-05-17 10:22                     ` Glauber Costa
2012-05-17 10:22                       ` Glauber Costa
2012-05-17 10:22                       ` Glauber Costa
     [not found]                       ` <4FB4D14D.4020303-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-05-17 10:27                         ` KAMEZAWA Hiroyuki
2012-05-17 10:27                           ` KAMEZAWA Hiroyuki
2012-05-17 15:19                 ` Tejun Heo [this message]
2012-05-17 17:02                 ` Andrew Morton
2012-05-17 17:02                   ` Andrew Morton
2012-05-16 21:13   ` Andrew Morton
2012-05-16 21:13     ` Andrew Morton
     [not found]     ` <20120516141342.911931e7.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2012-05-17  0:07       ` KAMEZAWA Hiroyuki
2012-05-17  0:07         ` KAMEZAWA Hiroyuki
2012-05-17  3:09       ` Glauber Costa
2012-05-17  3:09         ` Glauber Costa
2012-05-17  3:09         ` Glauber Costa

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