linux-kernel - Re: [PATCH] mm: vmscan: deactivate isolated pages with lru lock released

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Message-ID: <alpine.DEB.2.00.1201111351420.21755@chino.kir.corp.google.com>
Date:	Wed, 11 Jan 2012 13:51:53 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Hillf Danton <dhillf@...il.com>
cc:	linux-mm@...ck.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: vmscan: deactivate isolated pages with lru lock
 released

On Wed, 11 Jan 2012, Hillf Danton wrote:

> Spinners on other CPUs, if any, could take the lru lock and do their jobs while
> isolated pages are deactivated on the current CPU if the lock is released
> actively. And no risk of race raised as pages are already queued on locally
> private list.
> 
> 
> Signed-off-by: Hillf Danton <dhillf@...il.com>

Acked-by: David Rientjes <rientjes@...gle.com>
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