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 5dec94509a7e..4c56c1d98fb3 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -224,6 +224,7 @@ void kfree(const void *); */ static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head) { + rcu_callback_t f; unsigned long offset = (unsigned long)head->func; rcu_lock_acquire(&rcu_callback_map); @@ -234,7 +235,9 @@ static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head) return true; } else { RCU_TRACE(trace_rcu_invoke_callback(rn, head);) - head->func(head); + f = head->func; + WRITE_ONCE(head->func, (rcu_callback_t)0L); + f(head); rcu_lock_release(&rcu_callback_map); return false; } |