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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-06 09:28:41 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-05-06 09:28:41 -0700
commitee84b8243b07c33a5c8aed42b4b2da60cb16d1d2 (patch)
treea5b3cad55179fe8340c6422deaf6e11120222ad1 /include
parentad4ba375373937817404fd92239ef4cadbded23b (diff)
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rcu: create rcu_my_thread_group_empty() wrapper
Some RCU-lockdep splat repairs need to know whether they are running in a single-threaded process. Unfortunately, the thread_group_empty() primitive is defined in sched.h, and can induce #include hell. This commit therefore introduces a rcu_my_thread_group_empty() wrapper that is defined in rcupdate.c, thus avoiding the need to include sched.h everywhere. Signed-off-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/rcupdate.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 07db2feb857..db266bbed23 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -190,6 +190,8 @@ static inline int rcu_read_lock_sched_held(void)
#ifdef CONFIG_PROVE_RCU
+extern int rcu_my_thread_group_empty(void);
+
/**
* rcu_dereference_check - rcu_dereference with debug checking
* @p: The pointer to read, prior to dereferencing