51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
|
/****************************************************************************
|
||
|
|
****************************************************************************
|
||
|
|
***
|
||
|
|
*** 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
|