1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __SND_SEQ_LOCK_H
 3#define __SND_SEQ_LOCK_H
 4
 5#include <linux/sched.h>
 6
 
 
 7typedef atomic_t snd_use_lock_t;
 8
 9/* initialize lock */
10#define snd_use_lock_init(lockp) atomic_set(lockp, 0)
11
12/* increment lock */
13#define snd_use_lock_use(lockp) atomic_inc(lockp)
14
15/* release lock */
16#define snd_use_lock_free(lockp) atomic_dec(lockp)
17
18/* wait until all locks are released */
19void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int line);
20#define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, __BASE_FILE__, __LINE__)
 
 
 
 
 
 
 
 
 
 
21
22#endif /* __SND_SEQ_LOCK_H */

 
 1#ifndef __SND_SEQ_LOCK_H
 2#define __SND_SEQ_LOCK_H
 3
 4#include <linux/sched.h>
 5
 6#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
 7
 8typedef atomic_t snd_use_lock_t;
 9
10/* initialize lock */
11#define snd_use_lock_init(lockp) atomic_set(lockp, 0)
12
13/* increment lock */
14#define snd_use_lock_use(lockp) atomic_inc(lockp)
15
16/* release lock */
17#define snd_use_lock_free(lockp) atomic_dec(lockp)
18
19/* wait until all locks are released */
20void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int line);
21#define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, __BASE_FILE__, __LINE__)
22
23#else /* SMP || CONFIG_SND_DEBUG */
24
25typedef spinlock_t snd_use_lock_t;	/* dummy */
26#define snd_use_lock_init(lockp) /**/
27#define snd_use_lock_use(lockp) /**/
28#define snd_use_lock_free(lockp) /**/
29#define snd_use_lock_sync(lockp) /**/
30
31#endif /* SMP || CONFIG_SND_DEBUG */
32
33#endif /* __SND_SEQ_LOCK_H */