Messages in this thread Patch in this message | | | From | Hitoshi Mitake <> | Subject | [PATCH RFC 09/11] Adopt rcu_read_lock() to lock monitor | Date | Sun, 14 Mar 2010 19:38:46 +0900 |
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rcu_read_lock() issues lock_acquire() and rcu_read_unlock() issues lock_release(). They don't lock actual locks like spinlock or mutex.
So I replaced these calling of lock_acquire() and lock_release() with lockdep_acquire() and lockdep_release().
Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- include/linux/rcupdate.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 24440f4..e45c223 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -80,8 +80,8 @@ extern void rcu_init(void); #ifdef CONFIG_DEBUG_LOCK_ALLOC extern struct lockdep_map rcu_lock_map; # define rcu_read_acquire() \ - lock_acquire(&rcu_lock_map, 0, 0, 2, 1, NULL, _THIS_IP_) -# define rcu_read_release() lock_release(&rcu_lock_map, 1, _THIS_IP_) + lockdep_acquire(&rcu_lock_map, 0, 0, 2, 1, NULL, _THIS_IP_) +# define rcu_read_release() lockdep_release(&rcu_lock_map, 1, _THIS_IP_) #else # define rcu_read_acquire() do { } while (0) # define rcu_read_release() do { } while (0) -- 1.6.5.2
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