diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/core/seq/seq_lock.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/core/seq/seq_lock.h')
| -rw-r--r-- | kernel/sound/core/seq/seq_lock.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/kernel/sound/core/seq/seq_lock.h b/kernel/sound/core/seq/seq_lock.h new file mode 100644 index 000000000..54044bc2c --- /dev/null +++ b/kernel/sound/core/seq/seq_lock.h @@ -0,0 +1,33 @@ +#ifndef __SND_SEQ_LOCK_H +#define __SND_SEQ_LOCK_H + +#include <linux/sched.h> + +#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG) + +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__) + +#else /* SMP || CONFIG_SND_DEBUG */ + +typedef spinlock_t snd_use_lock_t; /* dummy */ +#define snd_use_lock_init(lockp) /**/ +#define snd_use_lock_use(lockp) /**/ +#define snd_use_lock_free(lockp) /**/ +#define snd_use_lock_sync(lockp) /**/ + +#endif /* SMP || CONFIG_SND_DEBUG */ + +#endif /* __SND_SEQ_LOCK_H */ |