diff options
| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-10-07 18:22:03 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-12-11 10:31:32 -0800 |
| commit | d8ab29f8be918b34a1ccd174569a53f0eb04b0a5 (patch) | |
| tree | 397799eee7eecc96c98f866db1536a19f863b513 /include | |
| parent | 00f49e5729af602deb559b0cf293a00b625e8636 (diff) | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/rcupdate.h | 53 |
1 files changed, 8 insertions, 45 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index d201c155f70..5dd6fd8b320 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(); } |