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Date: Mon, 3 Dec 2012 16:38:24 +0900
From: Minchan Kim <minchan@kernel.org>
Subject: Re: zram, OOM, and speed of allocation
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To: Luigi Semenzato <semenzato@google.com>
Cc: linux-mm@kvack.org, Dan Magenheimer <dan.magenheimer@oracle.com>, Sonny Rao <sonnyrao@google.com>, Bryan Freed <bfreed@google.com>, Hugh Dickins <hughd@google.com>

Hi Luigi,

It's another patch without dependency with previous my patches.
You can control /proc/sys/vm/swappiness up to 200(which means VM reclaimer
can reclaim only anonymous pages) so I hope it makes swap device full while
file-backed page(ie, code pages) are protected from eviction.

I hope this patch removes your hacky min_filelist_kbytes.
Could you try this and send feedback?