linux-kernel - Re: [RFC][PATCH 5/7] create __remove_mapping

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Message-ID: <518C20C8.3010403@sr71.net>
Date:	Thu, 09 May 2013 15:18:48 -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 5/7] create __remove_mapping_batch()

On 05/09/2013 03:13 PM, Seth Jennings wrote:
>> > +	mapping = lru_to_page(remove_list)->mapping;
> This doesn't work for pages in the swap cache as mapping is overloaded to
> hold... something else that I can't remember of the top of my head.  Anyway,
> this happens:

Yup, that's true.  I'm supposed to be using page_mapping() here.  I know
I ran in to that along the way and fixed a few of the sites in my patch,
but missed that one.  I'll fix it up.
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