321 static void rb_init_page(struct buffer_data_page *bpage)  in rb_init_page()  argument
323 	local_set(&bpage->commit, 0);  in rb_init_page()
342 static void free_buffer_page(struct buffer_page *bpage)  in free_buffer_page()  argument
344 	free_page((unsigned long)bpage->page);  in free_buffer_page()
345 	kfree(bpage);  in free_buffer_page()
942 			       struct buffer_page **bpage)  in rb_inc_page()  argument
944 	struct list_head *p = rb_list_head((*bpage)->list.next);  in rb_inc_page()
946 	*bpage = list_entry(p, struct buffer_page, list);  in rb_inc_page()
1075 			  struct buffer_page *bpage)  in rb_check_bpage()  argument
1077 	unsigned long val = (unsigned long)bpage;  in rb_check_bpage()
1108 	struct buffer_page *bpage, *tmp;  in rb_check_pages()  local
1124 	list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_check_pages()
1126 			       bpage->list.next->prev != &bpage->list))  in rb_check_pages()
1129 			       bpage->list.prev->next != &bpage->list))  in rb_check_pages()
1131 		if (rb_check_list(cpu_buffer, &bpage->list))  in rb_check_pages()
1142 	struct buffer_page *bpage, *tmp;  in __rb_allocate_pages()  local
1152 		bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in __rb_allocate_pages()
1155 		if (!bpage)  in __rb_allocate_pages()
1158 		list_add(&bpage->list, pages);  in __rb_allocate_pages()
1164 		bpage->page = page_address(page);  in __rb_allocate_pages()
1165 		rb_init_page(bpage->page);  in __rb_allocate_pages()
1171 	list_for_each_entry_safe(bpage, tmp, pages, list) {  in __rb_allocate_pages()
1172 		list_del_init(&bpage->list);  in __rb_allocate_pages()
1173 		free_buffer_page(bpage);  in __rb_allocate_pages()
1208 	struct buffer_page *bpage;  in rb_allocate_cpu_buffer()  local
1228 	bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in rb_allocate_cpu_buffer()
1230 	if (!bpage)  in rb_allocate_cpu_buffer()
1233 	rb_check_bpage(cpu_buffer, bpage);  in rb_allocate_cpu_buffer()
1235 	cpu_buffer->reader_page = bpage;  in rb_allocate_cpu_buffer()
1239 	bpage->page = page_address(page);  in rb_allocate_cpu_buffer()
1240 	rb_init_page(bpage->page);  in rb_allocate_cpu_buffer()
1268 	struct buffer_page *bpage, *tmp;  in rb_free_cpu_buffer()  local
1275 		list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_free_cpu_buffer()
1276 			list_del_init(&bpage->list);  in rb_free_cpu_buffer()
1277 			free_buffer_page(bpage);  in rb_free_cpu_buffer()
1279 		bpage = list_entry(head, struct buffer_page, list);  in rb_free_cpu_buffer()
1280 		free_buffer_page(bpage);  in rb_free_cpu_buffer()
1422 static inline unsigned long rb_page_entries(struct buffer_page *bpage)  in rb_page_entries()  argument
1424 	return local_read(&bpage->entries) & RB_WRITE_MASK;  in rb_page_entries()
1427 static inline unsigned long rb_page_write(struct buffer_page *bpage)  in rb_page_write()  argument
1429 	return local_read(&bpage->write) & RB_WRITE_MASK;  in rb_page_write()
1609 		struct buffer_page *bpage, *tmp;  in rb_insert_pages()  local
1610 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in rb_insert_pages()
1612 			list_del_init(&bpage->list);  in rb_insert_pages()
1613 			free_buffer_page(bpage);  in rb_insert_pages()
1811 		struct buffer_page *bpage, *tmp;  in ring_buffer_resize()  local
1819 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in ring_buffer_resize()
1821 			list_del_init(&bpage->list);  in ring_buffer_resize()
1822 			free_buffer_page(bpage);  in ring_buffer_resize()
1842 __rb_data_page_index(struct buffer_data_page *bpage, unsigned index)  in __rb_data_page_index()  argument
1844 	return bpage->data + index;  in __rb_data_page_index()
1847 static inline void *__rb_page_index(struct buffer_page *bpage, unsigned index)  in __rb_page_index()  argument
1849 	return bpage->page->data + index;  in __rb_page_index()
1865 static inline unsigned rb_page_commit(struct buffer_page *bpage)  in rb_page_commit()  argument
1867 	return local_read(&bpage->page->commit);  in rb_page_commit()
1871 static inline unsigned rb_page_size(struct buffer_page *bpage)  in rb_page_size()  argument
1873 	return rb_page_commit(bpage);  in rb_page_size()
2356 	struct buffer_page *bpage;  in rb_try_to_discard()  local
2365 	bpage = cpu_buffer->tail_page;  in rb_try_to_discard()
2367 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {  in rb_try_to_discard()
2369 			local_read(&bpage->write) & ~RB_WRITE_MASK;  in rb_try_to_discard()
2379 		index = local_cmpxchg(&bpage->write, old_index, new_index);  in rb_try_to_discard()
2885 	struct buffer_page *bpage = cpu_buffer->commit_page;  in rb_decrement_entry()  local
2891 	if (likely(bpage->page == (void *)addr)) {  in rb_decrement_entry()
2892 		local_dec(&bpage->entries);  in rb_decrement_entry()
2900 	rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
2901 	start = bpage;  in rb_decrement_entry()
2903 		if (bpage->page == (void *)addr) {  in rb_decrement_entry()
2904 			local_dec(&bpage->entries);  in rb_decrement_entry()
2907 		rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
2908 	} while (bpage != start);  in rb_decrement_entry()
3204 	struct buffer_page *bpage;  in ring_buffer_oldest_event_ts()  local
3217 		bpage = cpu_buffer->reader_page;  in ring_buffer_oldest_event_ts()
3219 		bpage = rb_set_head_page(cpu_buffer);  in ring_buffer_oldest_event_ts()
3220 	if (bpage)  in ring_buffer_oldest_event_ts()
3221 		ret = bpage->page->time_stamp;  in ring_buffer_oldest_event_ts()
4415 	struct buffer_data_page *bpage;  in ring_buffer_alloc_read_page()  local
4423 	bpage = page_address(page);  in ring_buffer_alloc_read_page()
4425 	rb_init_page(bpage);  in ring_buffer_alloc_read_page()
4427 	return bpage;  in ring_buffer_alloc_read_page()
4482 	struct buffer_data_page *bpage;  in ring_buffer_read_page()  local
4506 	bpage = *data_page;  in ring_buffer_read_page()
4507 	if (!bpage)  in ring_buffer_read_page()
4562 			memcpy(bpage->data + pos, rpage->data + rpos, size);  in ring_buffer_read_page()
4579 		local_set(&bpage->commit, pos);  in ring_buffer_read_page()
4580 		bpage->time_stamp = save_timestamp;  in ring_buffer_read_page()
4590 		rb_init_page(bpage);  in ring_buffer_read_page()
4591 		bpage = reader->page;  in ring_buffer_read_page()
4596 		*data_page = bpage;  in ring_buffer_read_page()
4604 			local_set(&bpage->commit, reader->real_end);  in ring_buffer_read_page()
4610 	commit = local_read(&bpage->commit);  in ring_buffer_read_page()
4619 			memcpy(&bpage->data[commit], &missed_events,  in ring_buffer_read_page()
4621 			local_add(RB_MISSED_STORED, &bpage->commit);  in ring_buffer_read_page()
4624 		local_add(RB_MISSED_EVENTS, &bpage->commit);  in ring_buffer_read_page()
4631 		memset(&bpage->data[commit], 0, BUF_PAGE_SIZE - commit);  in ring_buffer_read_page()