linux-kernel - Re: [Stable-review] [48/70] vmscan: all_unreclaimable() use zone->all

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Date:	Thu, 21 Apr 2011 13:24:08 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	kosaki.motohiro@...fujitsu.com, linux-kernel@...r.kernel.org,
	stable@...nel.org, Nick Piggin <npiggin@...nel.dk>,
	David Rientjes <rientjes@...gle.com>,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	stable-review@...nel.org, alan@...rguk.ukuu.org.uk,
	Greg KH <gregkh@...e.de>
Subject: Re: [Stable-review] [48/70] vmscan: all_unreclaimable() use zone->all_unreclaimable as a name

> On Tue, 2011-04-19 at 13:08 -0700, Greg KH wrote:
> > 2.6.38-stable review patch.  If anyone has any objections, please let us know.
> > 
> > ------------------
> > 
> > From: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> > 
> > commit 929bea7c714220fc76ce3f75bef9056477c28e74 upstream.
> > 
> > all_unreclaimable check in direct reclaim has been introduced at 2.6.19
> > by following commit.
> > 
> > 	2006 Sep 25; commit 408d8544; oom: use unreclaimable info
> > 
> > And it went through strange history. firstly, following commit broke
> > the logic unintentionally.
> > 
> > 	2008 Apr 29; commit a41f24ea; page allocator: smarter retry of
> > 				      costly-order allocations
> [...]
> 
> So presumably this needs to be fixed in 2.6.32.y and other longterm
> series as well.  Though there seems to be a whole series of fixes
> required in 2.6.32.y!
> 
> Are you going to look after that, or should someone else prepare
> backports?  (I'm certainly not volunteering - I don't have the VM
> knowledge to work out what needs doing.)

Hi Ben

Honestly, I didn't prepare. If my remember is correct, you are debian 
guy. So, Can I think the backport 2.6.32.y help debian people? If so,
it's good thing to increase my priority to do this.

Thanks.



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