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Re: [RFC, PATCH 0/3] serialise concurrent direct IO sub-block zeroing

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: [RFC, PATCH 0/3] serialise concurrent direct IO sub-block zeroing
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Sat, 24 Jul 2010 10:09:46 +1000
Cc: xfs@xxxxxxxxxxx
In-reply-to: <4C49EB67.6020509@xxxxxxxxxxx>
References: <1279881678-1660-1-git-send-email-david@xxxxxxxxxxxxx> <4C49EB67.6020509@xxxxxxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
On Fri, Jul 23, 2010 at 02:20:07PM -0500, Eric Sandeen wrote:
> Dave Chinner wrote:
> > Patches for discussion seeing as git.kernel.org is being slow to update.
> > 
> 
> I can confirm that this fixes the qemu problems, too.
> 
> Also makes the install take about 30min vs. 10 ;)

Yeah, that's no surprise - it'll be serialising all the IO even when
it doesn't need to. Good to know that we've found the cause of the
problem, though, so we can work from here towards a more robust
solution.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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