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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Mike Travis <travis@sgi.com>
Subject: Re: [patch 02/20] make the inode i_mmap_lock a reader/writer lock
Date: Thu, 3 Jan 2008 17:07:14 +1100
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Cc: Christoph Lameter <clameter@sgi.com>,
       Peter Zijlstra <peterz@infradead.org>,
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       Rik van Riel <riel@redhat.com>, linux-mm@kvack.org,
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On Thursday 03 January 2008 10:35, Mike Travis wrote:
> Hi Nick,
>
> Have you done anything more with allowing > 256 CPUS in this spinlock
> patch?  We've been testing with 1k cpus and to verify with -mm kernel,
> we need to "unpatch" these spinlock changes.
>
> Thanks,
> Mike

Hi Mike,

Actually I had it in my mind that 64 bit used single-byte locking like
i386, so I didn't think I'd caused a regression there.

I'll take a look at fixing that up now.

Thanks,
Nick