From: Pavel Emelyanov <xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
To: kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org
Cc: yamamoto-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org,
nishimura-YQH0OdQVrdy45+QrQBaojngSJqDPrsil@public.gmane.org,
containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org
Subject: Re: [RFC][PATCH 2/4] res_counter check usage under val
Date: Wed, 30 Jul 2008 06:09:06 +0400 [thread overview]
Message-ID: <488FCD42.4090309@openvz.org> (raw)
In-Reply-To: <26133366.1217233738316.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
> I get your point. Logically this lock is unnecessary.
> (And seems this patch itself is buggy..(maybe refresh miss))
>
> BTW, I'm sorry if I misunderstand. unsigned long long (on x86-32)
> can be compared safely ?
Oops... Indeed.
That discourages me, that we need a spinlock for simple comparisons :(
next prev parent reply other threads:[~2008-07-30 2:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-18 10:31 [RFC][PATCH 0/4[ memcg shrinking usage KAMEZAWA Hiroyuki
[not found] ` <20080718193123.cf74b574.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2008-07-18 10:34 ` [RFC][PATCH 1/4] res_counter set_limit and -EBUSY KAMEZAWA Hiroyuki
[not found] ` <20080718193437.ae79478a.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2008-07-21 17:32 ` Pavel Emelyanov
2008-07-18 10:35 ` [RFC][PATCH 2/4] res_counter check usage under val KAMEZAWA Hiroyuki
[not found] ` <20080718193530.578fb1e3.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2008-07-21 17:41 ` Pavel Emelyanov
[not found] ` <4884CA4F.9060003-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
2008-07-28 8:28 ` kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A
[not found] ` <26133366.1217233738316.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2008-07-30 2:09 ` Pavel Emelyanov [this message]
[not found] ` <488FCD42.4090309-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
2008-07-30 11:41 ` Paul Menage
[not found] ` <6599ad830807300441w5b1c149dg7dc0f4eb521439e7-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-30 12:34 ` Pavel Emelyanov
2008-07-18 10:36 ` [RFC][PATCH 3/4] memcg shrink usage at limit change KAMEZAWA Hiroyuki
2008-07-18 10:37 ` [RFC][PATCH 4/4] memcg shrinking usage KAMEZAWA Hiroyuki
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