diff options
Diffstat (limited to 'include/linux/notifier.h')
| -rw-r--r-- | include/linux/notifier.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/notifier.h b/include/linux/notifier.h index aef88c2d1173..86544707236a 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -73,6 +73,9 @@ struct raw_notifier_head { struct srcu_notifier_head { struct mutex mutex; +#ifdef CONFIG_TREE_SRCU + struct srcu_usage srcuu; +#endif struct srcu_struct srcu; struct notifier_block __rcu *head; }; @@ -103,12 +106,22 @@ extern void srcu_init_notifier_head(struct srcu_notifier_head *nh); #define RAW_NOTIFIER_INIT(name) { \ .head = NULL } +#ifdef CONFIG_TREE_SRCU +#define SRCU_NOTIFIER_INIT(name, pcpu) \ + { \ + .mutex = __MUTEX_INITIALIZER(name.mutex), \ + .head = NULL, \ + .srcuu = __SRCU_USAGE_INIT(name.srcuu), \ + .srcu = __SRCU_STRUCT_INIT(name.srcu, name.srcuu, pcpu), \ + } +#else #define SRCU_NOTIFIER_INIT(name, pcpu) \ { \ .mutex = __MUTEX_INITIALIZER(name.mutex), \ .head = NULL, \ - .srcu = __SRCU_STRUCT_INIT(name.srcu, pcpu), \ + .srcu = __SRCU_STRUCT_INIT(name.srcu, name.srcuu, pcpu), \ } +#endif #define ATOMIC_NOTIFIER_HEAD(name) \ struct atomic_notifier_head name = \ |