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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __SND_SEQ_LOCK_H
- #define __SND_SEQ_LOCK_H
- #include <linux/sched.h>
- typedef atomic_t snd_use_lock_t;
- /* initialize lock */
- #define snd_use_lock_init(lockp) atomic_set(lockp, 0)
- /* increment lock */
- #define snd_use_lock_use(lockp) atomic_inc(lockp)
- /* release lock */
- #define snd_use_lock_free(lockp) atomic_dec(lockp)
- /* wait until all locks are released */
- void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int line);
- #define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, __BASE_FILE__, __LINE__)
- #endif /* __SND_SEQ_LOCK_H */
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