Lines Matching defs:rtsp

650 static bool (*rts_acquire)(struct refscale_typesafe *rtsp, unsigned int *start);
651 static bool (*rts_release)(struct refscale_typesafe *rtsp, unsigned int start);
654 static bool typesafe_ref_acquire(struct refscale_typesafe *rtsp, unsigned int *start)
656 	return atomic_inc_not_zero(&rtsp->rts_refctr);
660 static bool typesafe_ref_release(struct refscale_typesafe *rtsp, unsigned int start)
662 	if (!atomic_dec_return(&rtsp->rts_refctr)) {
663 		WRITE_ONCE(rtsp->a, rtsp->a + 1);
664 		kmem_cache_free(typesafe_kmem_cachep, rtsp);
670 static bool typesafe_lock_acquire(struct refscale_typesafe *rtsp, unsigned int *start)
672 	spin_lock(&rtsp->rts_lock);
677 static bool typesafe_lock_release(struct refscale_typesafe *rtsp, unsigned int start)
679 	spin_unlock(&rtsp->rts_lock);
684 static bool typesafe_seqlock_acquire(struct refscale_typesafe *rtsp, unsigned int *start)
686 	*start = read_seqbegin(&rtsp->rts_seqlock);
692 static bool typesafe_seqlock_release(struct refscale_typesafe *rtsp, unsigned int start)
694 	return !read_seqretry(&rtsp->rts_seqlock, start);
706 	struct refscale_typesafe *rtsp;
715 		rtsp = rcu_dereference(rtsarray[idx]);
716 		a = READ_ONCE(rtsp->a);
717 		if (!rts_acquire(rtsp, &start)) {
721 		if (a != READ_ONCE(rtsp->a)) {
722 			(void)rts_release(rtsp, start);
727 		b = READ_ONCE(rtsp->a);
729 		if (!rts_release(rtsp, start)) {
734 		b = rtsp->b;
752 	struct refscale_typesafe *rtsp;
754 	rtsp = kmem_cache_alloc(typesafe_kmem_cachep, GFP_KERNEL);
755 	if (!rtsp)
757 	atomic_set(&rtsp->rts_refctr, 1);
758 	WRITE_ONCE(rtsp->a, rtsp->a + 1);
759 	WRITE_ONCE(rtsp->b, rtsp->a * rtsp->a);
760 	return rtsp;
767 	struct refscale_typesafe *rtsp = rtsp_in;
769 	spin_lock_init(&rtsp->rts_lock);
770 	seqlock_init(&rtsp->rts_seqlock);
772 	rtsp->a = torture_random(this_cpu_ptr(&refscale_rand));