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Subject: Re: [PATCH/RFC] NOMMU: drop page cache whenever any alloc fails
 due to low memory
From: Peter Zijlstra <peterz@infradead.org>
To: Mike Frysinger <vapier@gentoo.org>
Cc: linux-kernel@vger.kernel.org, uclinux-dist-devel@blackfin.uclinux.org,
       Sonic Zhang <sonic.zhang@analog.com>,
       David Howells <dhowells@redhat.com>
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Date: Tue, 14 Jul 2009 16:30:38 +0200
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On Tue, 2009-07-14 at 10:22 -0400, Mike Frysinger wrote:
> From: Sonic Zhang <sonic.zhang@analog.com>
> 
> Since no-mmu systems tend to be memory constrained, we want to drop all
> of the page cache whenever memory gets low.  The only other option is to
> invoke the oom killer, and clearly that's not ideal.

Uhm,.. normally reclaim will already try to drop pagecache.