---

yaml --- r: 91050 b: refs/heads/master c: b85d066 h: refs/heads/master v: v3
git-mirror · Apr 19, 2008 · 6513340 · 6513340
1 parent a0af4d1
commit 6513340
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0bbd3336eee1e712a290e0dfd1a64cbbdd63a508
+refs/heads/master: b85d0667268320072ccdeb07c27c25b300ab3724
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
@@ -627,14 +627,16 @@ enum {
 	SCHED_FEAT_START_DEBIT		= 4,
 	SCHED_FEAT_HRTICK		= 8,
 	SCHED_FEAT_DOUBLE_TICK		= 16,
+	SCHED_FEAT_SYNC_WAKEUPS		= 32,
 };
 
 const_debug unsigned int sysctl_sched_features =
 		SCHED_FEAT_NEW_FAIR_SLEEPERS	* 1 |
 		SCHED_FEAT_WAKEUP_PREEMPT	* 1 |
 		SCHED_FEAT_START_DEBIT		* 1 |
 		SCHED_FEAT_HRTICK		* 1 |
-		SCHED_FEAT_DOUBLE_TICK		* 0;
+		SCHED_FEAT_DOUBLE_TICK		* 0 |
+		SCHED_FEAT_SYNC_WAKEUPS		* 0;
 
 #define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)
 
@@ -1916,6 +1918,9 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync)
 	long old_state;
 	struct rq *rq;
 
+	if (!sched_feat(SYNC_WAKEUPS))
+		sync = 0;
+
 	smp_wmb();
 	rq = task_rq_lock(p, &flags);
 	old_state = p->state;