110 	unsigned		nr_events;  member
430 	unsigned nr_events = ctx->max_reqs;  in aio_setup_ring()  local
438 	nr_events += 2;	/* 1 is required, 2 for good luck */  in aio_setup_ring()
441 	size += sizeof(struct io_event) * nr_events;  in aio_setup_ring()
454 	nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring))  in aio_setup_ring()
504 	ctx->nr_events = nr_events; /* trusted copy */  in aio_setup_ring()
507 	ring->nr = nr_events;	/* user copy */  in aio_setup_ring()
681 static struct kioctx *ioctx_alloc(unsigned nr_events)  in ioctx_alloc()  argument
696 	nr_events = max(nr_events, num_possible_cpus() * 4);  in ioctx_alloc()
697 	nr_events *= 2;  in ioctx_alloc()
700 	if (nr_events > (0x10000000U / sizeof(struct io_event))) {  in ioctx_alloc()
705 	if (!nr_events || (unsigned long)nr_events > (aio_max_nr * 2UL))  in ioctx_alloc()
712 	ctx->max_reqs = nr_events;  in ioctx_alloc()
738 	atomic_set(&ctx->reqs_available, ctx->nr_events - 1);  in ioctx_alloc()
739 	ctx->req_batch = (ctx->nr_events - 1) / (num_possible_cpus() * 4);  in ioctx_alloc()
745 	if (aio_nr + nr_events > (aio_max_nr * 2UL) ||  in ioctx_alloc()
746 	    aio_nr + nr_events < aio_nr) {  in ioctx_alloc()
765 		 ctx, ctx->user_id, mm, ctx->nr_events);  in ioctx_alloc()
935 	head %= ctx->nr_events;  in refill_reqs_available()
939 		events_in_ring = ctx->nr_events - (head - tail);  in refill_reqs_available()
1086 	if (++tail >= ctx->nr_events)  in aio_complete()
1182 	pr_debug("h%u t%u m%u\n", head, tail, ctx->nr_events);  in aio_read_events_ring()
1187 	head %= ctx->nr_events;  in aio_read_events_ring()
1188 	tail %= ctx->nr_events;  in aio_read_events_ring()
1195 		avail = (head <= tail ?  tail : ctx->nr_events) - head;  in aio_read_events_ring()
1219 		head %= ctx->nr_events;  in aio_read_events_ring()
1307 SYSCALL_DEFINE2(io_setup, unsigned, nr_events, aio_context_t __user *, ctxp)  in SYSCALL_DEFINE2()  argument
1318 	if (unlikely(ctx || nr_events == 0)) {  in SYSCALL_DEFINE2()
1320 		         ctx, nr_events);  in SYSCALL_DEFINE2()
1324 	ioctx = ioctx_alloc(nr_events);  in SYSCALL_DEFINE2()