diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 2fb373a5c1ede3..723bc2df63882d 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -58,7 +58,7 @@ struct notifier_block { }; struct atomic_notifier_head { - spinlock_t lock; + raw_spinlock_t lock; struct notifier_block __rcu *head; }; @@ -78,7 +78,7 @@ struct srcu_notifier_head { }; #define ATOMIC_INIT_NOTIFIER_HEAD(name) do { \ - spin_lock_init(&(name)->lock); \ + raw_spin_lock_init(&(name)->lock); \ (name)->head = NULL; \ } while (0) #define BLOCKING_INIT_NOTIFIER_HEAD(name) do { \ @@ -95,7 +95,7 @@ extern void srcu_init_notifier_head(struct srcu_notifier_head *nh); cleanup_srcu_struct(&(name)->srcu); #define ATOMIC_NOTIFIER_INIT(name) { \ - .lock = __SPIN_LOCK_UNLOCKED(name.lock), \ + .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock), \ .head = NULL } #define BLOCKING_NOTIFIER_INIT(name) { \ .rwsem = __RWSEM_INITIALIZER((name).rwsem), \ diff --git a/kernel/notifier.c b/kernel/notifier.c index 1b019cbca594a1..c20782f0764320 100644 --- a/kernel/notifier.c +++ b/kernel/notifier.c @@ -142,9 +142,9 @@ int atomic_notifier_chain_register(struct atomic_notifier_head *nh, unsigned long flags; int ret; - spin_lock_irqsave(&nh->lock, flags); + raw_spin_lock_irqsave(&nh->lock, flags); ret = notifier_chain_register(&nh->head, n); - spin_unlock_irqrestore(&nh->lock, flags); + raw_spin_unlock_irqrestore(&nh->lock, flags); return ret; } EXPORT_SYMBOL_GPL(atomic_notifier_chain_register); @@ -164,9 +164,9 @@ int atomic_notifier_chain_unregister(struct atomic_notifier_head *nh, unsigned long flags; int ret; - spin_lock_irqsave(&nh->lock, flags); + raw_spin_lock_irqsave(&nh->lock, flags); ret = notifier_chain_unregister(&nh->head, n); - spin_unlock_irqrestore(&nh->lock, flags); + raw_spin_unlock_irqrestore(&nh->lock, flags); synchronize_rcu(); return ret; } @@ -182,9 +182,9 @@ int atomic_notifier_call_chain_robust(struct atomic_notifier_head *nh, * Musn't use RCU; because then the notifier list can * change between the up and down traversal. */ - spin_lock_irqsave(&nh->lock, flags); + raw_spin_lock_irqsave(&nh->lock, flags); ret = notifier_call_chain_robust(&nh->head, val_up, val_down, v); - spin_unlock_irqrestore(&nh->lock, flags); + raw_spin_unlock_irqrestore(&nh->lock, flags); return ret; }