linux-kernel - Re: [PATCH/RFC] NOMMU: drop page cache whenever any alloc fails due to low memory

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Message-Id: <1247581838.7500.98.camel@twins>
Date:	Tue, 14 Jul 2009 16:30:38 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mike Frysinger <vapier@...too.org>
Cc:	linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	Sonic Zhang <sonic.zhang@...log.com>,
	David Howells <dhowells@...hat.com>
Subject: Re: [PATCH/RFC] NOMMU: drop page cache whenever any alloc fails
 due to low memory

On Tue, 2009-07-14 at 10:22 -0400, Mike Frysinger wrote:
> From: Sonic Zhang <sonic.zhang@...log.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.
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