---

yaml --- r: 323597 b: refs/heads/master c: 1fd2b44 h: refs/heads/master i: 323595: a00c3a8 v: v3
git-mirror · Sep 26, 2012 · 9c32dc0 · 9c32dc0
1 parent e72789a
commit 9c32dc0
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Showing 3 changed files with 10 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: edf55fda35c7dc7f2d9241c3abaddaf759b457c6
+refs/heads/master: 1fd2b4425a5702c112b441e20b250ac8833a9608
diff --git a/trunk/init/Kconfig b/trunk/init/Kconfig
@@ -451,6 +451,14 @@ config RCU_USER_QS
 	  excluded from the global RCU state machine and thus doesn't
 	  to keep the timer tick on for RCU.
 
+config RCU_USER_QS_FORCE
+	bool "Force userspace extended QS by default"
+	depends on RCU_USER_QS
+	help
+	  Set the hooks in user/kernel boundaries by default in order to
+	  test this feature that treats userspace as an extended quiescent
+	  state until we have a real user like a full adaptive nohz option.
+
 config RCU_FANOUT
 	int "Tree-based hierarchical RCU fanout value"
 	range 2 64 if 64BIT

diff --git a/trunk/kernel/rcutree.c b/trunk/kernel/rcutree.c
@@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(rcu_note_context_switch);
 DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
 	.dynticks_nesting = DYNTICK_TASK_EXIT_IDLE,
 	.dynticks = ATOMIC_INIT(1),
-#ifdef CONFIG_RCU_USER_QS
+#if defined(CONFIG_RCU_USER_QS) && !defined(CONFIG_RCU_USER_QS_FORCE)
 	.ignore_user_qs = true,
 #endif
 };