kernel/locking/mutex.c

262  * @lock: the mutex to be acquired
268  * acquired it. Recursive locking is not allowed. The task
322 	if (ww_ctx->acquired > 0 && READ_ONCE(ww->ctx))  in ww_mutex_spin_on_owner()
594 		if (ww_ctx->acquired == 0)  in __mutex_lock_common()
660 			goto acquired;  in __mutex_lock_common()
702 acquired:  in __mutex_lock_common()
763  * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise.
768  * A mutex acquired with this function must be released with ww_mutex_unlock.
782 	if (ww_ctx->acquired == 0)  in ww_mutex_trylock()
873 	if (!ret && ctx && ctx->acquired > 1)  in ww_mutex_lock()
889 	if (!ret && ctx && ctx->acquired > 1)  in ww_mutex_lock_interruptible()
967  * @lock: The mutex to be acquired.
974  * Return: 0 if the lock was successfully acquired or %-EINTR if a
991  * @lock: The mutex to be acquired.
998  * Return: 0 if the lock was successfully acquired or %-EINTR if a
1014  * @lock: The mutex to be acquired.
1069  * @lock: the mutex to be acquired
1072  * has been acquired successfully, and 0 on contention.
1079  * mutex must be released by the same task that acquired it.