386 	struct io_uring_queue *sring = &s->sq_ring;  in mmap_io_uring()  local
389 	sring->ring_sz = p.sq_off.array + p.sq_entries * sizeof(unsigned int);  in mmap_io_uring()
393 		if (cring->ring_sz > sring->ring_sz)  in mmap_io_uring()
394 			sring->ring_sz = cring->ring_sz;  in mmap_io_uring()
396 		cring->ring_sz = sring->ring_sz;  in mmap_io_uring()
399 	void *sq_ptr = mmap(0, sring->ring_sz, PROT_READ | PROT_WRITE,  in mmap_io_uring()
416 			munmap(sq_ptr, sring->ring_sz);  in mmap_io_uring()
421 	sring->head = sq_ptr + p.sq_off.head;  in mmap_io_uring()
422 	sring->tail = sq_ptr + p.sq_off.tail;  in mmap_io_uring()
423 	sring->ring_mask = sq_ptr + p.sq_off.ring_mask;  in mmap_io_uring()
424 	sring->ring_entries = sq_ptr + p.sq_off.ring_entries;  in mmap_io_uring()
425 	sring->flags = sq_ptr + p.sq_off.flags;  in mmap_io_uring()
426 	sring->array = sq_ptr + p.sq_off.array;  in mmap_io_uring()
433 		munmap(sq_ptr, sring->ring_sz);  in mmap_io_uring()
508 	struct io_uring_queue *sring = &ring->sq_ring;  in handle_uring_sq()  local
532 	next_tail = *sring->tail;  in handle_uring_sq()
549 	sring->array[index] = index;  in handle_uring_sq()
552 	if (*sring->tail != tail) {  in handle_uring_sq()
553 		*sring->tail = tail;  in handle_uring_sq()