diff options
Diffstat (limited to 'kernel/rcu/rcu.h')
| -rw-r--r-- | kernel/rcu/rcu.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 7859a0a3951e..79c3877e9c5b 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -96,19 +96,22 @@ static inline void debug_rcu_head_unqueue(struct rcu_head *head) } #endif /* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */ -extern void kfree(const void *); +void kfree(const void *); static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head) { unsigned long offset = (unsigned long)head->func; + rcu_lock_acquire(&rcu_callback_map); if (__is_kfree_rcu_offset(offset)) { RCU_TRACE(trace_rcu_invoke_kfree_callback(rn, head, offset)); kfree((void *)head - offset); + rcu_lock_release(&rcu_callback_map); return 1; } else { RCU_TRACE(trace_rcu_invoke_callback(rn, head)); head->func(head); + rcu_lock_release(&rcu_callback_map); return 0; } } |