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 | |
7 | typedef 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 */ |
19 | void 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 */ |
23 | |