63 extern void rb_free(struct perf_buffer *rb);
67 	struct perf_buffer *rb;  in rb_free_rcu()  local
69 	rb = container_of(rcu_head, struct perf_buffer, rcu_head);  in rb_free_rcu()
70 	rb_free(rb);  in rb_free_rcu()
73 static inline void rb_toggle_paused(struct perf_buffer *rb, bool pause)  in rb_toggle_paused()  argument
75 	if (!pause && rb->nr_pages)  in rb_toggle_paused()
76 		rb->paused = 0;  in rb_toggle_paused()
78 		rb->paused = 1;  in rb_toggle_paused()
84 extern int rb_alloc_aux(struct perf_buffer *rb, struct perf_event *event,
86 extern void rb_free_aux(struct perf_buffer *rb);
88 extern void ring_buffer_put(struct perf_buffer *rb);
90 static inline bool rb_has_aux(struct perf_buffer *rb)  in rb_has_aux()  argument
92 	return !!rb->aux_nr_pages;  in rb_has_aux()
99 perf_mmap_to_page(struct perf_buffer *rb, unsigned long pgoff);
108 static inline int page_order(struct perf_buffer *rb)  in page_order()  argument
110 	return rb->page_order;  in page_order()
115 static inline int page_order(struct perf_buffer *rb)  in page_order()  argument
121 static inline int data_page_nr(struct perf_buffer *rb)  in data_page_nr()  argument
123 	return rb->nr_pages << page_order(rb);  in data_page_nr()
126 static inline unsigned long perf_data_size(struct perf_buffer *rb)  in perf_data_size()  argument
128 	return rb->nr_pages << (PAGE_SHIFT + page_order(rb));  in perf_data_size()
131 static inline unsigned long perf_aux_size(struct perf_buffer *rb)  in perf_aux_size()  argument
133 	return (unsigned long)rb->aux_nr_pages << PAGE_SHIFT;  in perf_aux_size()
151 			struct perf_buffer *rb = handle->rb;	\
154 			handle->page &= rb->nr_pages - 1;		\
155 			handle->addr = rb->data_pages[handle->page];	\
156 			handle->size = PAGE_SIZE << page_order(rb);	\