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rcu: Fix comment for rcu_dereference_raw_notrace 

rcu_dereference_raw() calls indirectly rcu_read_lock_held() while
rcu_dereference_raw_notrace() does not so fix the comment about the latter.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Alexey Kardashevskiy 2015-11-02 13:21:47 +11:00 committed by Paul E. McKenney
parent 7c9906ca5e
commit f039f0af08
1 changed files with 1 additions and 1 deletions
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include/linux/rcupdate.h
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@ -741,7 +741,7 @@ static inline void rcu_preempt_sleep_check(void)
* The tracing infrastructure traces RCU (we want that), but unfortunately * The tracing infrastructure traces RCU (we want that), but unfortunately
* some of the RCU checks causes tracing to lock up the system. * some of the RCU checks causes tracing to lock up the system.
* *
* The tracing version of rcu_dereference_raw() must not call * The no-tracing version of rcu_dereference_raw() must not call
* rcu_read_lock_held(). * rcu_read_lock_held().
*/ */
#define rcu_dereference_raw_notrace(p) __rcu_dereference_check((p), 1, __rcu) #define rcu_dereference_raw_notrace(p) __rcu_dereference_check((p), 1, __rcu)