232 	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))  in __perf_output_begin()
233 		local_add(rb->watermark, &rb->wakeup);  in __perf_output_begin()
309 ring_buffer_init(struct perf_buffer *rb, long watermark, int flags)  in ring_buffer_init()  argument
313 	if (watermark)  in ring_buffer_init()
314 		rb->watermark = min(max_size, watermark);  in ring_buffer_init()
316 	if (!rb->watermark)  in ring_buffer_init()
317 		rb->watermark = max_size / 2;  in ring_buffer_init()
671 		 pgoff_t pgoff, int nr_pages, long watermark, int flags)  in rb_alloc_aux()  argument
685 		if (!watermark)  in rb_alloc_aux()
686 			watermark = nr_pages << (PAGE_SHIFT - 1);  in rb_alloc_aux()
692 		max_order = get_order(watermark);  in rb_alloc_aux()
699 		watermark = 0;  in rb_alloc_aux()
758 	rb->aux_watermark = watermark;  in rb_alloc_aux()
814 struct perf_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
843 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()
911 struct perf_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
939 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()