---

yaml --- r: 98644 b: refs/heads/master c: ee3ece8 h: refs/heads/master v: v3
git-mirror · Jul 3, 2008 · 7478213 · 7478213
1 parent 04cb85a
commit 7478213
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6beef7eb0c16b5216814148b04838cfa963d2cb4
+refs/heads/master: ee3ece830f6db9837f7ac67008f532a8c1e755f4
diff --git a/trunk/kernel/hrtimer.c b/trunk/kernel/hrtimer.c
@@ -1003,10 +1003,18 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
 	 */
 	raise = timer->state == HRTIMER_STATE_PENDING;
 
+	/*
+	 * We use preempt_disable to prevent this task from migrating after
+	 * setting up the softirq and raising it. Otherwise, if me migrate
+	 * we will raise the softirq on the wrong CPU.
+	 */
+	preempt_disable();
+
 	unlock_hrtimer_base(timer, &flags);
 
 	if (raise)
 		hrtimer_raise_softirq();
+	preempt_enable();
 
 	return ret;
 }