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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2009-08-25 18:53:37 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-26 09:45:41 +0200 |
| commit | 06e799764eb7c2e4640888d438c3524d756613e1 (patch) | |
| tree | 6c5437a498113c41cacc92d896c99afd5e5091ae /include/linux/rcupdate.h | |
| parent | c935a331c8f569c7903ed26a3994a70cbea1802e (diff) | |
| download | blackbird-op-linux-06e799764eb7c2e4640888d438c3524d756613e1.tar.gz blackbird-op-linux-06e799764eb7c2e4640888d438c3524d756613e1.zip | |
rcu: Remove lockdep annotations from RCU's _notrace() API members
The lockdep annotations rcu_read_acquire() and rcu_read_release()
might lead to infinite looping if called from lockdep. So this patch
removes them. Formal repost of http://lkml.org/lkml/2009/8/25/309
on the strength of Lai Jiangshan's review.
Suggested-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: dipankar@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: josht@linux.vnet.ibm.com
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
LKML-Reference: <20090826015337.GA18904@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 8b4422c558da..95e0615f4d75 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -195,7 +195,6 @@ static inline notrace void rcu_read_lock_sched_notrace(void) { preempt_disable_notrace(); __acquire(RCU_SCHED); - rcu_read_acquire(); } /* @@ -211,7 +210,6 @@ static inline void rcu_read_unlock_sched(void) } static inline notrace void rcu_read_unlock_sched_notrace(void) { - rcu_read_release(); __release(RCU_SCHED); preempt_enable_notrace(); } |
