linux-kernel - Re: [PATCH] mm,vmscan: Use accurate values for zone

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Message-ID: <alpine.DEB.2.20.1510220925160.23638@east.gentwo.org>
Date:	Thu, 22 Oct 2015 09:25:49 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Tejun Heo <htejun@...il.com>
cc:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	mhocko@...nel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	David Rientjes <rientjes@...gle.com>, oleg@...hat.com,
	kwalker@...hat.com, akpm@...ux-foundation.org, hannes@...xchg.org,
	vdavydov@...allels.com, skozina@...hat.com, mgorman@...e.de,
	riel@...hat.com
Subject: Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable()
 checks

On Thu, 22 Oct 2015, Tejun Heo wrote:

> On Thu, Oct 22, 2015 at 09:23:54AM -0500, Christoph Lameter wrote:
> > I guess we need that otherwise vm statistics are not updated while worker
> > threads are blocking on memory reclaim.
>
> And the blocking one is just constantly running?

I was told that there is just one task struct so additional work queue
items cannot be processed while waiting?

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