Differential D15452 Diff 43068 sys/compat/linuxkpi/common/include/linux/wait.h

Changeset View

Standalone View

sys/compat/linuxkpi/common/include/linux/wait.h

Show First 20 Lines • Show All 41 Lines • ▼ Show 20 Lines
#include <sys/param.h>		#include <sys/param.h>
#include <sys/systm.h>		#include <sys/systm.h>

#define SKIP_SLEEP() (SCHEDULER_STOPPED() \|\| kdb_active)		#define SKIP_SLEEP() (SCHEDULER_STOPPED() \|\| kdb_active)

#define might_sleep() \		#define might_sleep() \
WITNESS_WARN(WARN_GIANTOK \| WARN_SLEEPOK, NULL, "might_sleep()")		WITNESS_WARN(WARN_GIANTOK \| WARN_SLEEPOK, NULL, "might_sleep()")

		#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)

		#if __LinuxKPI_version >= 40013
		#define __add_wait_queue_entry_tail(wqh,wq) __add_wait_queue_tail((wqh),(wq))
		#define wait_queue_entry wait_queue
		#define wait_queue_entry_t wait_queue_t
		#endif

struct wait_queue;		struct wait_queue;
struct wait_queue_head;		struct wait_queue_head;

typedef struct wait_queue wait_queue_t;		typedef struct wait_queue wait_queue_t;
typedef struct wait_queue_head wait_queue_head_t;		typedef struct wait_queue_head wait_queue_head_t;

typedef int wait_queue_func_t(wait_queue_t , unsigned int, int, void );		typedef int wait_queue_func_t(wait_queue_t , unsigned int, int, void );

/*		/*
* Many API consumers directly reference these fields and those of		* Many API consumers directly reference these fields and those of
* wait_queue_head.		* wait_queue_head.
*/		*/
struct wait_queue {		struct wait_queue {
unsigned int flags; /* always 0 */		unsigned int flags; /* always 0 */
void *private;		void *private;
wait_queue_func_t *func;		wait_queue_func_t *func;
struct list_head task_list;		union {
		/*
		* Changes in Linux v4.13.
		* Remove deprecated code when we
		* don't depend on < 4.13 any more.
		*/
		struct list_head task_list; /* < v.4.13 */
		struct list_head entry; /* >= v4.13 */
};		};
		};

struct wait_queue_head {		struct wait_queue_head {
spinlock_t lock;		spinlock_t lock;
struct list_head task_list;		union {
		struct list_head task_list; /* < v.4.13 */
		struct list_head head; /* >= v4.13 */
};		};
		};

/*		/*
* This function is referenced by at least one DRM driver, so it may not be		* This function is referenced by at least one DRM driver, so it may not be
* renamed and furthermore must be the default wait queue callback.		* renamed and furthermore must be the default wait queue callback.
*/		*/
extern wait_queue_func_t autoremove_wake_function;		extern wait_queue_func_t autoremove_wake_function;
extern wait_queue_func_t default_wake_function;		extern wait_queue_func_t default_wake_function;

Show All 20 Lines	#define DECLARE_WAIT_QUEUE_HEAD(name) \
MTX_SYSINIT(name, &(name).lock.m, spin_lock_name("wqhead"), MTX_DEF)		MTX_SYSINIT(name, &(name).lock.m, spin_lock_name("wqhead"), MTX_DEF)

#define init_waitqueue_head(wqh) do { \		#define init_waitqueue_head(wqh) do { \
mtx_init(&(wqh)->lock.m, spin_lock_name("wqhead"), \		mtx_init(&(wqh)->lock.m, spin_lock_name("wqhead"), \
NULL, MTX_DEF \| MTX_NEW \| MTX_NOWITNESS); \		NULL, MTX_DEF \| MTX_NEW \| MTX_NOWITNESS); \
INIT_LIST_HEAD(&(wqh)->task_list); \		INIT_LIST_HEAD(&(wqh)->task_list); \
} while (0)		} while (0)

		void linux_init_wait_entry(wait_queue_t *wait, int flags);
void linux_wake_up(wait_queue_head_t *, unsigned int, int, bool);		void linux_wake_up(wait_queue_head_t *, unsigned int, int, bool);

		#define init_wait_entry(w, f) \
		linux_init_wait_entry(w, f)

#define wake_up(wqh) \		#define wake_up(wqh) \
linux_wake_up(wqh, TASK_NORMAL, 1, false)		linux_wake_up(wqh, TASK_NORMAL, 1, false)
#define wake_up_all(wqh) \		#define wake_up_all(wqh) \
linux_wake_up(wqh, TASK_NORMAL, 0, false)		linux_wake_up(wqh, TASK_NORMAL, 0, false)
#define wake_up_locked(wqh) \		#define wake_up_locked(wqh) \
linux_wake_up(wqh, TASK_NORMAL, 1, true)		linux_wake_up(wqh, TASK_NORMAL, 1, true)
#define wake_up_all_locked(wqh) \		#define wake_up_all_locked(wqh) \
▲ Show 20 Lines • Show All 171 Lines • Show Last 20 Lines