Re: [patch 02/20] make the inode i_mmap_lock a reader/writer lock

From: Nick Piggin
Date: Thu Jan 03 2008 - 01:07:42 EST

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.

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