#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 */
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sched/sch_generic.c?id=69973b830859bc6529a7a0468ba0d80ee5117826'>69973b830859bc6529a7a0468ba0d80ee5117826</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/sched/sch_generic.c?id=69973b830859bc6529a7a0468ba0d80ee5117826'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sched/sch_generic.c?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>2e4333c14de06a333783d6812cf3c4998f78b0c8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sched/sch_generic.c?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.9</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>Diffstat</a> (limited to 'net/sched/sch_generic.c')</div><table summary='diffstat' class='diffstat'>