linux-kernel - Re: [PATCH 3.16.y-ckt 043/128] mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress

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Message-ID: <20160125105305.GA3298@ares>
Date:	Mon, 25 Jan 2016 10:53:05 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com, Michal Hocko <mhocko@...e.com>,
	Tejun Heo <tj@...nel.org>,
	Cristopher Lameter <clameter@....com>,
	Joonsoo Kim <js1304@...il.com>,
	Arkadiusz Miskiewicz <arekm@...en.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 3.16.y-ckt 043/128] mm, vmstat: allow WQ concurrency to
 discover memory reclaim doesn't make any progress

On Sun, Jan 24, 2016 at 10:14:37PM +0000, Ben Hutchings wrote:
> On Sun, 2016-01-24 at 21:59 +0000, Luis Henriques wrote:
> > 3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.
> > 
> > ---8<------------------------------------------------------------
> > 
> > From: Michal Hocko <mhocko@...e.com>
> > 
> > commit 373ccbe5927034b55bdc80b0f8b54d6e13fe8d12 upstream.
> [...]
> > [ luis: backported to 3.16, based on Ben's backport to 3.2:
> >   - use schedule_delayed_work instead of queue_delayed_work_on function
> >     vmstat_update()
> [...]
> 
> You're (correctly) changing it to use queue_delayed_work(), not
> schedule_delayed_work() as it previously did.
>

Ups, that's correct.  I'll fix this note.  Thanks Ben.

Cheers,
--
Luís


> Ben.
> 
> -- 
> Ben Hutchings
> Time is nature's way of making sure that everything doesn't happen at once.