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mm: sched: numa: Control enabling and disabling of NUMA balancing

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This patch adds Kconfig options and kernel parameters to allow the
enabling and disabling of automatic NUMA balancing. The existance
of such a switch was and is very important when debugging problems
related to transparent hugepages and we should have the same for
automatic NUMA placement.

Signed-off-by: Mel Gorman <mgorman@suse.de>
This commit is contained in:
Mel Gorman 2012-11-22 11:16:36 +00:00
commit 1a687c2e9a
7 changed files with 101 additions and 17 deletions
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4
include/linux/sched.h
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@ -1563,10 +1563,14 @@ struct task_struct {
#ifdef CONFIG_NUMA_BALANCING
extern void task_numa_fault(int node, int pages, bool migrated);
extern void set_numabalancing_state(bool enabled);
#else
static inline void task_numa_fault(int node, int pages, bool migrated)
{
}
static inline void set_numabalancing_state(bool enabled)
{
}
#endif
/*