[tip:numa/core] sched, numa, mm: Introduce sched_feat_numa()

[tip-bot for Peter Zijlstra <a.p.zijlstra@chello.nl>]

Commit-ID:  6e27d9318a551b14a6ef8a1956b497f1477680a1
Gitweb:     http://git.kernel.org/tip/6e27d9318a551b14a6ef8a1956b497f1477680a1
Author:     Peter Zijlstra <a.p.zijlstra@chello.nl>
AuthorDate: Tue, 1 May 2012 23:47:08 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Sun, 28 Oct 2012 17:31:10 +0100

sched, numa, mm: Introduce sched_feat_numa()

Avoid a few #ifdef's later on.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Turner <pjt@google.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-sxrRsaqz4cj1plnzyjbtWzbf@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/sched.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7a7db09..741272e 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -648,6 +648,12 @@ extern struct static_key sched_feat_keys[__SCHED_FEAT_NR];
 #define sched_feat(x) (sysctl_sched_features & (1UL << __SCHED_FEAT_##x))
 #endif /* SCHED_DEBUG && HAVE_JUMP_LABEL */
 
+#ifdef CONFIG_SCHED_NUMA
+#define sched_feat_numa(x) sched_feat(x)
+#else
+#define sched_feat_numa(x) (0)
+#endif
+
 static inline u64 global_rt_period(void)
 {
 	return (u64)sysctl_sched_rt_period * NSEC_PER_USEC;