230 	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))  in __perf_output_begin()
231 		local_add(rb->watermark, &rb->wakeup);  in __perf_output_begin()
306 ring_buffer_init(struct perf_buffer *rb, long watermark, int flags)  in ring_buffer_init()  argument
310 	if (watermark)  in ring_buffer_init()
311 		rb->watermark = min(max_size, watermark);  in ring_buffer_init()
313 	if (!rb->watermark)  in ring_buffer_init()
314 		rb->watermark = max_size / 2;  in ring_buffer_init()
668 		 pgoff_t pgoff, int nr_pages, long watermark, int flags)  in rb_alloc_aux()  argument
744 	rb->aux_watermark = watermark;  in rb_alloc_aux()
803 struct perf_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
831 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()
904 struct perf_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)  in rb_alloc()  argument
930 	ring_buffer_init(rb, watermark, flags);  in rb_alloc()