| Date | Mon, 29 Nov 2010 11:30:54 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [PATCH 06/21] mm: Simplify anon_vma refcounts |
| |
On Fri, 26 Nov 2010 15:38:49 +0100 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). > > 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. > > Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
|