Messages in this thread | | | Date | Fri, 18 Feb 2011 09:49:03 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH 3/3] mm: Simplify anon_vma refcounts |
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On 02/18/2011 08:44 AM, Peter Zijlstra wrote: > Subject: mm: Simplify anon_vma refcounts > From: Peter Zijlstra<a.p.zijlstra@chello.nl> > Date: Fri, 26 Nov 2010 15:38:49 +0100 > > 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). > > This allows a simpler release scheme without having to check both the > refcount and the list as well as avoids taking a ref for each entry > on the list. > > Reviewed-by: KAMEZAWA Hiroyuki<kamezawa.hiroyu@jp.fujitsu.com> > Acked-by: Hugh Dickins<hughd@google.com> > Signed-off-by: Peter Zijlstra<a.p.zijlstra@chello.nl>
Acked-by: Rik van Riel <riel@redhat.com>
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