344 static void rb_init_page(struct buffer_data_page *bpage)  in rb_init_page()  argument
346 	local_set(&bpage->commit, 0);  in rb_init_page()
353 static void free_buffer_page(struct buffer_page *bpage)  in free_buffer_page()  argument
355 	free_page((unsigned long)bpage->page);  in free_buffer_page()
356 	kfree(bpage);  in free_buffer_page()
1235 			       struct buffer_page **bpage)  in rb_inc_page()  argument
1237 	struct list_head *p = rb_list_head((*bpage)->list.next);  in rb_inc_page()
1239 	*bpage = list_entry(p, struct buffer_page, list);  in rb_inc_page()
1360 			  struct buffer_page *bpage)  in rb_check_bpage()  argument
1362 	unsigned long val = (unsigned long)bpage;  in rb_check_bpage()
1393 	struct buffer_page *bpage, *tmp;  in rb_check_pages()  local
1409 	list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_check_pages()
1411 			       bpage->list.next->prev != &bpage->list))  in rb_check_pages()
1414 			       bpage->list.prev->next != &bpage->list))  in rb_check_pages()
1416 		if (rb_check_list(cpu_buffer, &bpage->list))  in rb_check_pages()
1427 	struct buffer_page *bpage, *tmp;  in __rb_allocate_pages()  local
1464 		bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in __rb_allocate_pages()
1466 		if (!bpage)  in __rb_allocate_pages()
1469 		list_add(&bpage->list, pages);  in __rb_allocate_pages()
1474 		bpage->page = page_address(page);  in __rb_allocate_pages()
1475 		rb_init_page(bpage->page);  in __rb_allocate_pages()
1486 	list_for_each_entry_safe(bpage, tmp, pages, list) {  in __rb_allocate_pages()
1487 		list_del_init(&bpage->list);  in __rb_allocate_pages()
1488 		free_buffer_page(bpage);  in __rb_allocate_pages()
1525 	struct buffer_page *bpage;  in rb_allocate_cpu_buffer()  local
1545 	bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in rb_allocate_cpu_buffer()
1547 	if (!bpage)  in rb_allocate_cpu_buffer()
1550 	rb_check_bpage(cpu_buffer, bpage);  in rb_allocate_cpu_buffer()
1552 	cpu_buffer->reader_page = bpage;  in rb_allocate_cpu_buffer()
1556 	bpage->page = page_address(page);  in rb_allocate_cpu_buffer()
1557 	rb_init_page(bpage->page);  in rb_allocate_cpu_buffer()
1585 	struct buffer_page *bpage, *tmp;  in rb_free_cpu_buffer()  local
1592 		list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_free_cpu_buffer()
1593 			list_del_init(&bpage->list);  in rb_free_cpu_buffer()
1594 			free_buffer_page(bpage);  in rb_free_cpu_buffer()
1596 		bpage = list_entry(head, struct buffer_page, list);  in rb_free_cpu_buffer()
1597 		free_buffer_page(bpage);  in rb_free_cpu_buffer()
1721 static inline unsigned long rb_page_entries(struct buffer_page *bpage)  in rb_page_entries()  argument
1723 	return local_read(&bpage->entries) & RB_WRITE_MASK;  in rb_page_entries()
1726 static inline unsigned long rb_page_write(struct buffer_page *bpage)  in rb_page_write()  argument
1728 	return local_read(&bpage->write) & RB_WRITE_MASK;  in rb_page_write()
1910 		struct buffer_page *bpage, *tmp;  in rb_insert_pages()  local
1911 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in rb_insert_pages()
1913 			list_del_init(&bpage->list);  in rb_insert_pages()
1914 			free_buffer_page(bpage);  in rb_insert_pages()
2128 		struct buffer_page *bpage, *tmp;  in ring_buffer_resize()  local
2136 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in ring_buffer_resize()
2138 			list_del_init(&bpage->list);  in ring_buffer_resize()
2139 			free_buffer_page(bpage);  in ring_buffer_resize()
2159 static __always_inline void *__rb_page_index(struct buffer_page *bpage, unsigned index)  in __rb_page_index()  argument
2161 	return bpage->page->data + index;  in __rb_page_index()
2171 static __always_inline unsigned rb_page_commit(struct buffer_page *bpage)  in rb_page_commit()  argument
2173 	return local_read(&bpage->page->commit);  in rb_page_commit()
2231 static __always_inline unsigned rb_page_size(struct buffer_page *bpage)  in rb_page_size()  argument
2233 	return rb_page_commit(bpage);  in rb_page_size()
2799 	struct buffer_page *bpage;  in rb_try_to_discard()  local
2810 	bpage = READ_ONCE(cpu_buffer->tail_page);  in rb_try_to_discard()
2820 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {  in rb_try_to_discard()
2822 			local_read(&bpage->write) & ~RB_WRITE_MASK;  in rb_try_to_discard()
2846 		index = local_cmpxchg(&bpage->write, old_index, new_index);  in rb_try_to_discard()
3473 	struct buffer_page *bpage = cpu_buffer->commit_page;  in rb_decrement_entry()  local
3479 	if (likely(bpage->page == (void *)addr)) {  in rb_decrement_entry()
3480 		local_dec(&bpage->entries);  in rb_decrement_entry()
3488 	rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
3489 	start = bpage;  in rb_decrement_entry()
3491 		if (bpage->page == (void *)addr) {  in rb_decrement_entry()
3492 			local_dec(&bpage->entries);  in rb_decrement_entry()
3495 		rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
3496 	} while (bpage != start);  in rb_decrement_entry()
3803 	struct buffer_page *bpage;  in ring_buffer_oldest_event_ts()  local
3816 		bpage = cpu_buffer->reader_page;  in ring_buffer_oldest_event_ts()
3818 		bpage = rb_set_head_page(cpu_buffer);  in ring_buffer_oldest_event_ts()
3819 	if (bpage)  in ring_buffer_oldest_event_ts()
3820 		ret = bpage->page->time_stamp;  in ring_buffer_oldest_event_ts()
5134 	struct buffer_data_page *bpage = NULL;  in ring_buffer_alloc_read_page()  local
5146 		bpage = cpu_buffer->free_page;  in ring_buffer_alloc_read_page()
5153 	if (bpage)  in ring_buffer_alloc_read_page()
5161 	bpage = page_address(page);  in ring_buffer_alloc_read_page()
5164 	rb_init_page(bpage);  in ring_buffer_alloc_read_page()
5166 	return bpage;  in ring_buffer_alloc_read_page()
5181 	struct buffer_data_page *bpage = data;  in ring_buffer_free_read_page()  local
5182 	struct page *page = virt_to_page(bpage);  in ring_buffer_free_read_page()
5193 		cpu_buffer->free_page = bpage;  in ring_buffer_free_read_page()
5194 		bpage = NULL;  in ring_buffer_free_read_page()
5201 	free_page((unsigned long)bpage);  in ring_buffer_free_read_page()
5243 	struct buffer_data_page *bpage;  in ring_buffer_read_page()  local
5267 	bpage = *data_page;  in ring_buffer_read_page()
5268 	if (!bpage)  in ring_buffer_read_page()
5323 			memcpy(bpage->data + pos, rpage->data + rpos, size);  in ring_buffer_read_page()
5340 		local_set(&bpage->commit, pos);  in ring_buffer_read_page()
5341 		bpage->time_stamp = save_timestamp;  in ring_buffer_read_page()
5351 		rb_init_page(bpage);  in ring_buffer_read_page()
5352 		bpage = reader->page;  in ring_buffer_read_page()
5357 		*data_page = bpage;  in ring_buffer_read_page()
5365 			local_set(&bpage->commit, reader->real_end);  in ring_buffer_read_page()
5371 	commit = local_read(&bpage->commit);  in ring_buffer_read_page()
5380 			memcpy(&bpage->data[commit], &missed_events,  in ring_buffer_read_page()
5382 			local_add(RB_MISSED_STORED, &bpage->commit);  in ring_buffer_read_page()
5385 		local_add(RB_MISSED_EVENTS, &bpage->commit);  in ring_buffer_read_page()
5392 		memset(&bpage->data[commit], 0, BUF_PAGE_SIZE - commit);  in ring_buffer_read_page()