Fw: generic_file_buffered_write(): deadlock on vectored write patch in 2.6.17.7

[Bryce Harrington]

On Fri, Sep 15, 2006 at 01:30:49PM -0700, Andrew Morton wrote:
> 
> Bryce, I think William has identified the source of the NFS rewrite
> performance regression.

Ah, excellent, that sounds a lot like the culprit!  We'll run this
through our tests and report back.

Thanks,
Bryce

> Begin forwarded message:
> 
> Date: Tue, 12 Sep 2006 16:15:30 -0400
> From: William Xu <wxu at max-t.com>
> To: akpm at osdl.org
> Subject: generic_file_buffered_write(): deadlock on vectored write patch in 2.6.17.7
> 
> 
> Hi Andrew,
> 
> I found a regression of NFS performance in the latest kernel and traced 
> it down to this patch:
> "generic_file_buffered_write(): deadlock on vectored write" checked in 
> 2.6.17.7.