From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 20 Aug 2007 15:56:30 +0100
Subject: [Cluster-devel] [GFS2 PATCH] Reduce truncate IO traffic
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Hi,

Now in the -nmw git tree. Thanks,

Steve.

On Mon, 2007-08-20 at 09:29 -0400, Wendy Cheng wrote:
> Current GFS2 setattr call unconditionally invokes do_shrink even the 
> requested size and actual file size are equal. This has generated large 
> amount of extra IOs found during NFS benchmark runs. This patch moves 
> the relevant logic out of shrink code path. Since setattr is a system 
> call, the time stamps update is still required.
> 
> -- Wendy
> 
>