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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>
wifi-calibration
Paul E. McKenney 2009-08-25 18:53:37 -07:00 committed by Ingo Molnar
parent c935a331c8
commit 06e799764e
1 changed files with 0 additions and 2 deletions
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2
include/linux/rcupdate.h
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@ -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();
}