linux-kernel - Re: [patch 00/14] Page cache cleanup in anticipation of Large Blocksize support

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Message-ID: <20070615002931.GI86004887@sgi.com>
Date:	Fri, 15 Jun 2007 10:29:31 +1000
From:	David Chinner <dgc@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	David Chinner <dgc@....com>, clameter@....com,
	linux-kernel@...r.kernel.org, hch@...radead.org
Subject: Re: [patch 00/14] Page cache cleanup in anticipation of Large Blocksize support

On Thu, Jun 14, 2007 at 04:41:18PM -0700, Andrew Morton wrote:
> > On Fri, 15 Jun 2007 09:30:02 +1000 David Chinner <dgc@....com> wrote:
> > xfs_repair also uses direct I/O and does it's own userspace block
> > caching and so avoids the problems involved with low memory, context
> > unaware cache reclaim and blockdev cache thrashing.
> 
> umm, that sounds like a mistake to me.  fscks tend to get run when there's
> no swap online.  A small system with a large disk risks going oom and can
> no longer be booted. 

xfs_repair is never run at boot time - we don't force periodic
boot time checks like ext3/4 does so this isn't a problem.

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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