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Date: Tue, 4 Oct 2011 09:43:32 +0400 From: Glauber Costa <glommer@...allels.com> To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> CC: <linux-kernel@...r.kernel.org>, <paul@...lmenage.org>, <lizf@...fujitsu.com>, <ebiederm@...ssion.com>, <davem@...emloft.net>, <gthelen@...gle.com>, <netdev@...r.kernel.org>, <linux-mm@...ck.org>, <kirill@...temov.name>, <avagin@...allels.com> Subject: Re: [PATCH v4 4/8] per-cgroup tcp buffers control On 10/04/2011 05:16 AM, KAMEZAWA Hiroyuki wrote: > It seems memcg->tcp.tcp_memory_pressure has no locks and not atomic. > > no problematic race ? > > Thanks, > -Kame Well, prior to this patch, it was a global variable. And nobody complained so far... My impression is that the only thing that really needs to be atomic is the memory accounting, which is already. If we miss a memory pressure condition entry, we'll get to it next time. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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