170 	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))  in perf_output_begin()
171 		local_add(rb->watermark, &rb->wakeup);  in perf_output_begin()
227 ring_buffer_init(struct ring_buffer *rb, long watermark, int flags)  in ring_buffer_init()  argument
231 	if (watermark)  in ring_buffer_init()
232 		rb->watermark = min(max_size, watermark);  in ring_buffer_init()
234 	if (!rb->watermark)  in ring_buffer_init()
235 		rb->watermark = max_size / 2;  in ring_buffer_init()
471 		 pgoff_t pgoff, int nr_pages, long watermark, int flags)  in rb_alloc_aux()  argument
549 	rb->aux_watermark = watermark;  in rb_alloc_aux()
630 struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
655 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()
736 struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
760 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()