diff options
Diffstat (limited to 'include/linux/rcupdate.h')
-rw-r--r-- | include/linux/rcupdate.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 4ccd68e49b00..ddcc7826d907 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h | |||
@@ -640,6 +640,15 @@ static inline void rcu_preempt_sleep_check(void) | |||
640 | 640 | ||
641 | #define rcu_dereference_raw(p) rcu_dereference_check(p, 1) /*@@@ needed? @@@*/ | 641 | #define rcu_dereference_raw(p) rcu_dereference_check(p, 1) /*@@@ needed? @@@*/ |
642 | 642 | ||
643 | /* | ||
644 | * The tracing infrastructure traces RCU (we want that), but unfortunately | ||
645 | * some of the RCU checks causes tracing to lock up the system. | ||
646 | * | ||
647 | * The tracing version of rcu_dereference_raw() must not call | ||
648 | * rcu_read_lock_held(). | ||
649 | */ | ||
650 | #define rcu_dereference_raw_notrace(p) __rcu_dereference_check((p), 1, __rcu) | ||
651 | |||
643 | /** | 652 | /** |
644 | * rcu_access_index() - fetch RCU index with no dereferencing | 653 | * rcu_access_index() - fetch RCU index with no dereferencing |
645 | * @p: The index to read | 654 | * @p: The index to read |