Subject: + mm-sched-numa-fix-numa-balancing-when-sched_debug.patch added to -mm tree
To: dave.kleikamp@xxxxxxxxxx,mgorman@xxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 11 Jul 2013 15:05:44 -0700
The patch titled
Subject: mm: sched: numa: fix NUMA balancing when !SCHED_DEBUG
has been added to the -mm tree. Its filename is
mm-sched-numa-fix-numa-balancing-when-sched_debug.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-sched-numa-fix-numa-balancing-when-sched_debug.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-sched-numa-fix-numa-balancing-when-sched_debug.patch
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------------------------------------------------------
From: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Subject: mm: sched: numa: fix NUMA balancing when !SCHED_DEBUG
3105b86a ("mm: sched: numa: Control enabling and disabling of NUMA
balancing if !SCHED_DEBUG") defined numabalancing_enabled to control the
enabling and disabling of automatic NUMA balancing, but it is never used.
I believe the intention was to use this in place of sched_feat_numa(NUMA).
Currently, if SCHED_DEBUG is not defined, sched_feat_numa(NUMA) will never
be changed from the initial "false".
Signed-off-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sched/fair.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/sched/fair.c~mm-sched-numa-fix-numa-balancing-when-sched_debug kernel/sched/fair.c
--- a/kernel/sched/fair.c~mm-sched-numa-fix-numa-balancing-when-sched_debug
+++ a/kernel/sched/fair.c
@@ -851,7 +851,7 @@ void task_numa_fault(int node, int pages
{
struct task_struct *p = current;
- if (!sched_feat_numa(NUMA))
+ if (!numabalancing_enabled)
return;
/* FIXME: Allocate task-specific structure for placement policy here */
@@ -5786,7 +5786,7 @@ static void task_tick_fair(struct rq *rq
entity_tick(cfs_rq, se, queued);
}
- if (sched_feat_numa(NUMA))
+ if (numabalancing_enabled)
task_tick_numa(rq, curr);
update_rq_runnable_avg(rq, 1);
_
Patches currently in -mm which might be from dave.kleikamp@xxxxxxxxxx are
origin.patch
linux-next.patch
mm-sched-numa-fix-numa-balancing-when-sched_debug.patch
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