rcu: Remove one layer of abstraction from PROVE_RCU checking

Simplify things a bit by substituting the definitions of the single-line
rcu_read_acquire(), rcu_read_release(), rcu_read_acquire_bh(),
rcu_read_release_bh(), rcu_read_acquire_sched(), and
rcu_read_release_sched() functions at their call points.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

1 files changed, 8 insertions, 45 deletions

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index d201c155f70c..5dd6fd8b3203 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -250,41 +250,8 @@ static inline void rcu_lock_release(struct lockdep_map *map)
 }
 
 extern struct lockdep_map rcu_lock_map;
-
-static inline void rcu_read_acquire(void)
-{
-        rcu_lock_acquire(&rcu_lock_map);
-}
-
-static inline void rcu_read_release(void)
-{
-        rcu_lock_release(&rcu_lock_map);
-}
-
 extern struct lockdep_map rcu_bh_lock_map;
-
-static inline void rcu_read_acquire_bh(void)
-{
-        rcu_lock_acquire(&rcu_bh_lock_map);
-}
-
-static inline void rcu_read_release_bh(void)
-{
-        rcu_lock_release(&rcu_bh_lock_map);
-}
-
 extern struct lockdep_map rcu_sched_lock_map;
-
-static inline void rcu_read_acquire_sched(void)
-{
-        rcu_lock_acquire(&rcu_sched_lock_map);
-}
-
-static inline void rcu_read_release_sched(void)
-{
-        rcu_lock_release(&rcu_sched_lock_map);
-}
-
 extern int debug_lockdep_rcu_enabled(void);
 
 /**
@@ -364,12 +331,8 @@ static inline int rcu_read_lock_sched_held(void)
 
 #else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 
-# define rcu_read_acquire()             do { } while (0)
-# define rcu_read_release()             do { } while (0)
-# define rcu_read_acquire_bh()          do { } while (0)
-# define rcu_read_release_bh()          do { } while (0)
-# define rcu_read_acquire_sched()       do { } while (0)
-# define rcu_read_release_sched()       do { } while (0)
+# define rcu_lock_acquire(a)            do { } while (0)
+# define rcu_lock_release(a)            do { } while (0)
 
 static inline int rcu_read_lock_held(void)
 {
@@ -690,7 +653,7 @@ static inline void rcu_read_lock(void)
 {
         __rcu_read_lock();
         __acquire(RCU);
-        rcu_read_acquire();
+        rcu_lock_acquire(&rcu_lock_map);
 }
 
 /*
@@ -710,7 +673,7 @@ static inline void rcu_read_lock(void)
  */
 static inline void rcu_read_unlock(void)
 {
-        rcu_read_release();
+        rcu_lock_release(&rcu_lock_map);
         __release(RCU);
         __rcu_read_unlock();
 }
@@ -731,7 +694,7 @@ static inline void rcu_read_lock_bh(void)
 {
         local_bh_disable();
         __acquire(RCU_BH);
-        rcu_read_acquire_bh();
+        rcu_lock_acquire(&rcu_bh_lock_map);
 }
 
 /*
@@ -741,7 +704,7 @@ static inline void rcu_read_lock_bh(void)
  */
 static inline void rcu_read_unlock_bh(void)
 {
-        rcu_read_release_bh();
+        rcu_lock_release(&rcu_bh_lock_map);
         __release(RCU_BH);
         local_bh_enable();
 }
@@ -758,7 +721,7 @@ static inline void rcu_read_lock_sched(void)
 {
         preempt_disable();
         __acquire(RCU_SCHED);
-        rcu_read_acquire_sched();
+        rcu_lock_acquire(&rcu_sched_lock_map);
 }
 
 /* Used by lockdep and tracing: cannot be traced, cannot call lockdep. */
@@ -775,7 +738,7 @@ static inline notrace void rcu_read_lock_sched_notrace(void)
  */
 static inline void rcu_read_unlock_sched(void)
 {
-        rcu_read_release_sched();
+        rcu_lock_release(&rcu_sched_lock_map);
         __release(RCU_SCHED);
         preempt_enable();
 }