linux-kernel - Re: [RFC PATCH 0/6] Do not call ->writepage[s] from direct reclaim and use a

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Message-ID: <20100611181724.GC9946@csn.ul.ie>
Date:	Fri, 11 Jun 2010 19:17:24 +0100
From:	Mel Gorman <mel@....ul.ie>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	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>
Subject: Re: [RFC PATCH 0/6] Do not call ->writepage[s] from direct reclaim
	and use a_ops->writepages() where possible

On Fri, Jun 11, 2010 at 12:30:26PM -0400, Christoph Hellwig wrote:
> On Fri, Jun 11, 2010 at 01:33:20PM +0100, Mel Gorman wrote:
> > Ok, I was under the mistaken impression that filesystems wanted to be
> > given ranges of pages where possible. Considering that there has been no
> > reaction to the patch in question from the filesystem people cc'd, I'll
> > drop the problem for now.
> 
> Yes, we'd prefer them if possible.  Then again we'd really prefer to
> get as much I/O as possible from the flusher threads, and not kswapd.
> 

Ok, for the moment I'll put it on the maybe pile and drop it from the
series. We can revisit if a use is found for it and we're happy that
there wasn't some other bug leaving dirty pages on the LRU for too long.

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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