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mm: sched: numa: Control enabling and disabling of NUMA balancing if !SCHED_DEBUG

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The "mm: sched: numa: Control enabling and disabling of NUMA balancing"
depends on scheduling debug being enabled but it's perfectly legimate to
disable automatic NUMA balancing even without this option. This should
take care of it.

Signed-off-by: Mel Gorman <mgorman@suse.de>
This commit is contained in:
Mel Gorman 2012-11-23 11:23:49 +00:00
parent 1a687c2e9a
commit 3105b86a9f
2 changed files with 16 additions and 1 deletions
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9
kernel/sched/core.c
View File

@ -1558,6 +1558,7 @@ static void __sched_fork(struct task_struct *p)
}
#ifdef CONFIG_NUMA_BALANCING
#ifdef CONFIG_SCHED_DEBUG
void set_numabalancing_state(bool enabled)
{
if (enabled)
@ -1565,6 +1566,14 @@ void set_numabalancing_state(bool enabled)
else
sched_feat_set("NO_NUMA");
}
#else
__read_mostly bool numabalancing_enabled;
void set_numabalancing_state(bool enabled)
{
numabalancing_enabled = enabled;
}
#endif /* CONFIG_SCHED_DEBUG */
#endif /* CONFIG_NUMA_BALANCING */
/*

8
kernel/sched/sched.h
View File

@ -650,9 +650,15 @@ extern struct static_key sched_feat_keys[__SCHED_FEAT_NR];
#ifdef CONFIG_NUMA_BALANCING
#define sched_feat_numa(x) sched_feat(x)
#ifdef CONFIG_SCHED_DEBUG
#define numabalancing_enabled sched_feat_numa(NUMA)
#else
extern bool numabalancing_enabled;
#endif /* CONFIG_SCHED_DEBUG */
#else
#define sched_feat_numa(x) (0)
#endif
#define numabalancing_enabled (0)
#endif /* CONFIG_NUMA_BALANCING */
static inline u64 global_rt_period(void)
{