lkml.org 
[lkml]   [2011]   [Jan]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 20/25] mm: Simplify anon_vma refcounts
On Wed, Jan 26, 2011 at 3:31 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
>
> This patch changes the anon_vma refcount to be 0 when the object is
> free. It does this by adding 1 ref to being in use in the anon_vma
> structure (iow. the anon_vma->head list is not empty).

Why is this patch part of this series, rather than being an
independent patch before the whole series?

I think this part of the series is the only total no-brainer, ie we
should have done this from the beginning. The preemptability stuff I'm
more nervous about (performance issues? semantic differences?)

Linus


\
 
 \ /
  Last update: 2011-01-25 21:19    [W:2.066 / U:1.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site