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libspl: move mutex implementation from libzpool

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Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17861
This commit is contained in:
Rob Norris
2025-10-27 09:41:59 +11:00
committed by Brian Behlendorf
parent cc119fbb48
commit 3e37ea85af
3 changed files with 90 additions and 56 deletions
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lib/libzpool/kernel.c
-56
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@@ -184,62 +184,6 @@ kstat_set_raw_ops(kstat_t *ksp,
(void) ksp, (void) headers, (void) data, (void) addr;
}
/*
* =========================================================================
* mutexes
* =========================================================================
*/
void
mutex_init(kmutex_t *mp, char *name, int type, void *cookie)
{
(void) name, (void) type, (void) cookie;
VERIFY0(pthread_mutex_init(&mp->m_lock, NULL));
memset(&mp->m_owner, 0, sizeof (pthread_t));
}
void
mutex_destroy(kmutex_t *mp)
{
VERIFY0(pthread_mutex_destroy(&mp->m_lock));
}
void
mutex_enter(kmutex_t *mp)
{
VERIFY0(pthread_mutex_lock(&mp->m_lock));
mp->m_owner = pthread_self();
}
int
mutex_enter_check_return(kmutex_t *mp)
{
int error = pthread_mutex_lock(&mp->m_lock);
if (error == 0)
mp->m_owner = pthread_self();
return (error);
}
int
mutex_tryenter(kmutex_t *mp)
{
int error = pthread_mutex_trylock(&mp->m_lock);
if (error == 0) {
mp->m_owner = pthread_self();
return (1);
} else {
VERIFY3S(error, ==, EBUSY);
return (0);
}
}
void
mutex_exit(kmutex_t *mp)
{
memset(&mp->m_owner, 0, sizeof (pthread_t));
VERIFY0(pthread_mutex_unlock(&mp->m_lock));
}
/*
* =========================================================================
* rwlocks