linux-kernel - Re: [PATCH 0/12] Avoid overflowing of stack during page reclaim V2

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Message-ID: <20100614151011.GA24948@infradead.org>
Date:	Mon, 14 Jun 2010 11:10:11 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Mel Gorman <mel@....ul.ie>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, Dave Chinner <david@...morbit.com>,
	Chris Mason <chris.mason@...cle.com>,
	Nick Piggin <npiggin@...e.de>, Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Christoph Hellwig <hch@...radead.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/12] Avoid overflowing of stack during page reclaim V2

On Mon, Jun 14, 2010 at 12:17:41PM +0100, Mel Gorman wrote:
> This is a merging of two series - the first of which reduces stack usage
> in page reclaim and the second which writes contiguous pages during reclaim
> and avoids writeback in direct reclaimers.

This stuff looks good to me from the filesystem POV.

You might want to throw in a follow on patch to remove the PF_MEMALLOC
checks from the various ->writepage methods.

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