/**************************************************************************** **************************************************************************** *** *** This header was automatically generated from a Linux kernel header *** of the same name, to make information necessary for userspace to *** call into the kernel available to libc. It contains only constants, *** structures, and macros generated from the original header, and thus, *** contains no copyrightable information. *** **************************************************************************** ****************************************************************************/ #ifndef _LINUX_NOTIFIER_H #define _LINUX_NOTIFIER_H #include <linux/errno.h> #include <linux/mutex.h> #include <linux/rwsem.h> struct notifier_block { int (*notifier_call)(struct notifier_block *, unsigned long, void *); struct notifier_block *next; int priority; }; struct atomic_notifier_head { spinlock_t lock; struct notifier_block *head; }; struct blocking_notifier_head { struct rw_semaphore rwsem; struct notifier_block *head; }; struct raw_notifier_head { struct notifier_block *head; }; #define ATOMIC_INIT_NOTIFIER_HEAD(name) do { spin_lock_init(&(name)->lock); (name)->head = NULL; } while (0) #define BLOCKING_INIT_NOTIFIER_HEAD(name) do { init_rwsem(&(name)->rwsem); (name)->head = NULL; } while (0) #define RAW_INIT_NOTIFIER_HEAD(name) do { (name)->head = NULL; } while (0) #define ATOMIC_NOTIFIER_INIT(name) { .lock = __SPIN_LOCK_UNLOCKED(name.lock), .head = NULL } #define BLOCKING_NOTIFIER_INIT(name) { .rwsem = __RWSEM_INITIALIZER((name).rwsem), .head = NULL } #define RAW_NOTIFIER_INIT(name) { .head = NULL } #define ATOMIC_NOTIFIER_HEAD(name) struct atomic_notifier_head name = ATOMIC_NOTIFIER_INIT(name) #define BLOCKING_NOTIFIER_HEAD(name) struct blocking_notifier_head name = BLOCKING_NOTIFIER_INIT(name) #define RAW_NOTIFIER_HEAD(name) struct raw_notifier_head name = RAW_NOTIFIER_INIT(name) #endif