On Fri, Feb 18, 2011 at 02:44:43PM +0100, Peter Zijlstra wrote: > Subject: mm: Simplify anon_vma refcounts > From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> > 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@xxxxxxxxxxxxxx> > Acked-by: Hugh Dickins <hughd@xxxxxxxxxx> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Acked-by: Mel Gorman <mel@xxxxxxxxx> -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>