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authorRik van Riel <riel@redhat.com>2013-10-07 11:29:38 +0100
committerIngo Molnar <mingo@kernel.org>2013-10-09 14:48:20 +0200
commit1e3646ffc64b232cb14a5ef01d7b98997c1b73f9 (patch)
tree6bb7610078609d8d84e1b7d535d958de41c8d588 /kernel/sched/core.c
parent930aa174fcc8b0efaad102fd80f677b92f35eaa2 (diff)
mm: numa: Revert temporarily disabling of NUMA migration
With the scan rate code working (at least for multi-instance specjbb), the large hammer that is "sched: Do not migrate memory immediately after switching node" can be replaced with something smarter. Revert temporarily migration disabling and all traces of numa_migrate_seq. Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1381141781-10992-61-git-send-email-mgorman@suse.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/core.c')
-rw-r--r--kernel/sched/core.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 89c5ae836f66..0c3feebcf112 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1731,7 +1731,6 @@ static void __sched_fork(unsigned long clone_flags, struct task_struct *p)
p->node_stamp = 0ULL;
p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
- p->numa_migrate_seq = 1;
p->numa_scan_period = sysctl_numa_balancing_scan_delay;
p->numa_work.next = &p->numa_work;
p->numa_faults = NULL;
@@ -4488,7 +4487,6 @@ void sched_setnuma(struct task_struct *p, int nid)
p->sched_class->put_prev_task(rq, p);
p->numa_preferred_nid = nid;
- p->numa_migrate_seq = 1;
if (running)
p->sched_class->set_curr_task(rq);