Re: [PATCH 19/21] mm: Convert i_mmap_lock and anon_vma->lock tomutexes

[Peter Zijlstra]

On Mon, 2010-11-29 at 12:05 +0900, KAMEZAWA Hiroyuki wrote:
> On Fri, 26 Nov 2010 15:39:02 +0100
> Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
> 
> > Straight fwd conversion of i_mmap_lock and anon_vma->lock to mutexes.
> > 
> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> 
> No performance influence ?

I couldn't find any, if there was anything the error and per-boot
deviation was larger.

Yanmin also ran this though the intel test/performance farm and didn't
find anything significant.
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