> > > /*
> > > * Always updating the nodemask is not very good - even if we have an empty
> > > * list or the wrong list here, we can start from some node and traverse all
> > > @@ -1575,7 +1593,6 @@ static bool test_mem_cgroup_node_reclaim
> > > */
> >
> > Would be good to update the function comment as well (we still have 10s
> > period there).
> >
>
how about this ?
==
Update function's comment. The behavior is changed by commit 453a9bf3
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
---
mm/memcontrol.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
Index: mmotm-Aug3/mm/memcontrol.c
===================================================================
--- mmotm-Aug3.orig/mm/memcontrol.c
+++ mmotm-Aug3/mm/memcontrol.c
@@ -1568,10 +1568,7 @@ static bool test_mem_cgroup_node_reclaim
#if MAX_NUMNODES > 1
/*
- * Always updating the nodemask is not very good - even if we have an empty
- * list or the wrong list here, we can start from some node and traverse all
- * nodes based on the zonelist. So update the list loosely once per 10 secs.
- *
+ * Update scan nodemask with memcg's event_counter(NUMAINFO_EVENTS_TARGET)
*/
static void mem_cgroup_may_update_nodemask(struct mem_cgroup *mem)
{
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