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Date:	Tue,  6 Oct 2015 09:13:38 -0700
From:	"Paul E. McKenney" <>
Cc:,,,,,,,,,,,,,,, Boqun Feng <>,
	"Paul E. McKenney" <>
Subject: [PATCH tip/core/rcu 03/13] rcu: Use call_rcu_func_t to replace explicit type equivalents

From: Boqun Feng <>

We have had the call_rcu_func_t typedef for a quite awhile, but we still
use explicit function pointer types in some places.  These types can
confuse cscope and can be hard to read.  This patch therefore replaces
these types with the call_rcu_func_t typedef.

Signed-off-by: Boqun Feng <>
Signed-off-by: Paul E. McKenney <>
 kernel/rcu/rcutorture.c | 2 +-
 kernel/rcu/tree.h       | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 51c8e7f02f48..f9ec6cbe77d3 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -252,7 +252,7 @@ struct rcu_torture_ops {
 	void (*exp_sync)(void);
 	unsigned long (*get_state)(void);
 	void (*cond_sync)(unsigned long oldstate);
-	void (*call)(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
+	call_rcu_func_t call;
 	void (*cb_barrier)(void);
 	void (*fqs)(void);
 	void (*stats)(void);
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index ad11529375cc..0c33c82cec64 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -464,8 +464,7 @@ struct rcu_state {
 						/*  shut bogus gcc warning) */
 	u8 flavor_mask;				/* bit in flavor mask. */
 	struct rcu_data __percpu *rda;		/* pointer of percu rcu_data. */
-	void (*call)(struct rcu_head *head,	/* call_rcu() flavor. */
-		     void (*func)(struct rcu_head *head));
+	call_rcu_func_t call;			/* call_rcu() flavor. */
 	/* The following fields are guarded by the root rcu_node's lock. */

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