linux-kernel - Re: [RFC][PATCH 1/7] defer clearing of page

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Message-ID: <518C2106.3030402@sr71.net>
Date:	Thu, 09 May 2013 15:19:50 -0700
From:	Dave Hansen <dave@...1.net>
To:	Seth Jennings <sjenning@...ux.vnet.ibm.com>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, mgorman@...e.de,
	tim.c.chen@...ux.intel.com
Subject: Re: [RFC][PATCH 1/7] defer clearing of page_private() for swap cache
 pages

On 05/09/2013 03:07 PM, Seth Jennings wrote:
> mm/memcontrol:4111
> VM_BUG_ON(PageSwapCache(page));
> 
> Seems that mem_cgroup_uncharge_swapcache, somewhat ironically expects the
> SwapCache flag to be unset already.
> 
> Fix might be a simple as removing that VM_BUG_ON() but there might be more to
> it.  There usually is :)

Yeah, I wasn't testing with cgroups around.  I'll go do that and see
what I come up with.
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