342 static void rb_init_page(struct buffer_data_page *bpage)  in rb_init_page()  argument
344 	local_set(&bpage->commit, 0);  in rb_init_page()
351 static void free_buffer_page(struct buffer_page *bpage)  in free_buffer_page()  argument
353 	free_page((unsigned long)bpage->page);  in free_buffer_page()
354 	kfree(bpage);  in free_buffer_page()
998 			       struct buffer_page **bpage)  in rb_inc_page()  argument
1000 	struct list_head *p = rb_list_head((*bpage)->list.next);  in rb_inc_page()
1002 	*bpage = list_entry(p, struct buffer_page, list);  in rb_inc_page()
1123 			  struct buffer_page *bpage)  in rb_check_bpage()  argument
1125 	unsigned long val = (unsigned long)bpage;  in rb_check_bpage()
1156 	struct buffer_page *bpage, *tmp;  in rb_check_pages()  local
1172 	list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_check_pages()
1174 			       bpage->list.next->prev != &bpage->list))  in rb_check_pages()
1177 			       bpage->list.prev->next != &bpage->list))  in rb_check_pages()
1179 		if (rb_check_list(cpu_buffer, &bpage->list))  in rb_check_pages()
1190 	struct buffer_page *bpage, *tmp;  in __rb_allocate_pages()  local
1227 		bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in __rb_allocate_pages()
1229 		if (!bpage)  in __rb_allocate_pages()
1232 		list_add(&bpage->list, pages);  in __rb_allocate_pages()
1237 		bpage->page = page_address(page);  in __rb_allocate_pages()
1238 		rb_init_page(bpage->page);  in __rb_allocate_pages()
1249 	list_for_each_entry_safe(bpage, tmp, pages, list) {  in __rb_allocate_pages()
1250 		list_del_init(&bpage->list);  in __rb_allocate_pages()
1251 		free_buffer_page(bpage);  in __rb_allocate_pages()
1288 	struct buffer_page *bpage;  in rb_allocate_cpu_buffer()  local
1308 	bpage = kzalloc_node(ALIGN(sizeof(*bpage), cache_line_size()),  in rb_allocate_cpu_buffer()
1310 	if (!bpage)  in rb_allocate_cpu_buffer()
1313 	rb_check_bpage(cpu_buffer, bpage);  in rb_allocate_cpu_buffer()
1315 	cpu_buffer->reader_page = bpage;  in rb_allocate_cpu_buffer()
1319 	bpage->page = page_address(page);  in rb_allocate_cpu_buffer()
1320 	rb_init_page(bpage->page);  in rb_allocate_cpu_buffer()
1348 	struct buffer_page *bpage, *tmp;  in rb_free_cpu_buffer()  local
1355 		list_for_each_entry_safe(bpage, tmp, head, list) {  in rb_free_cpu_buffer()
1356 			list_del_init(&bpage->list);  in rb_free_cpu_buffer()
1357 			free_buffer_page(bpage);  in rb_free_cpu_buffer()
1359 		bpage = list_entry(head, struct buffer_page, list);  in rb_free_cpu_buffer()
1360 		free_buffer_page(bpage);  in rb_free_cpu_buffer()
1483 static inline unsigned long rb_page_entries(struct buffer_page *bpage)  in rb_page_entries()  argument
1485 	return local_read(&bpage->entries) & RB_WRITE_MASK;  in rb_page_entries()
1488 static inline unsigned long rb_page_write(struct buffer_page *bpage)  in rb_page_write()  argument
1490 	return local_read(&bpage->write) & RB_WRITE_MASK;  in rb_page_write()
1672 		struct buffer_page *bpage, *tmp;  in rb_insert_pages()  local
1673 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in rb_insert_pages()
1675 			list_del_init(&bpage->list);  in rb_insert_pages()
1676 			free_buffer_page(bpage);  in rb_insert_pages()
1874 		struct buffer_page *bpage, *tmp;  in ring_buffer_resize()  local
1882 		list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,  in ring_buffer_resize()
1884 			list_del_init(&bpage->list);  in ring_buffer_resize()
1885 			free_buffer_page(bpage);  in ring_buffer_resize()
1904 static __always_inline void *__rb_page_index(struct buffer_page *bpage, unsigned index)  in __rb_page_index()  argument
1906 	return bpage->page->data + index;  in __rb_page_index()
1922 static __always_inline unsigned rb_page_commit(struct buffer_page *bpage)  in rb_page_commit()  argument
1924 	return local_read(&bpage->page->commit);  in rb_page_commit()
1928 static __always_inline unsigned rb_page_size(struct buffer_page *bpage)  in rb_page_size()  argument
1930 	return rb_page_commit(bpage);  in rb_page_size()
2418 	struct buffer_page *bpage;  in rb_try_to_discard()  local
2427 	bpage = READ_ONCE(cpu_buffer->tail_page);  in rb_try_to_discard()
2429 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {  in rb_try_to_discard()
2431 			local_read(&bpage->write) & ~RB_WRITE_MASK;  in rb_try_to_discard()
2441 		index = local_cmpxchg(&bpage->write, old_index, new_index);  in rb_try_to_discard()
3016 	struct buffer_page *bpage = cpu_buffer->commit_page;  in rb_decrement_entry()  local
3022 	if (likely(bpage->page == (void *)addr)) {  in rb_decrement_entry()
3023 		local_dec(&bpage->entries);  in rb_decrement_entry()
3031 	rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
3032 	start = bpage;  in rb_decrement_entry()
3034 		if (bpage->page == (void *)addr) {  in rb_decrement_entry()
3035 			local_dec(&bpage->entries);  in rb_decrement_entry()
3038 		rb_inc_page(cpu_buffer, &bpage);  in rb_decrement_entry()
3039 	} while (bpage != start);  in rb_decrement_entry()
3351 	struct buffer_page *bpage;  in ring_buffer_oldest_event_ts()  local
3364 		bpage = cpu_buffer->reader_page;  in ring_buffer_oldest_event_ts()
3366 		bpage = rb_set_head_page(cpu_buffer);  in ring_buffer_oldest_event_ts()
3367 	if (bpage)  in ring_buffer_oldest_event_ts()
3368 		ret = bpage->page->time_stamp;  in ring_buffer_oldest_event_ts()
4595 	struct buffer_data_page *bpage = NULL;  in ring_buffer_alloc_read_page()  local
4607 		bpage = cpu_buffer->free_page;  in ring_buffer_alloc_read_page()
4614 	if (bpage)  in ring_buffer_alloc_read_page()
4622 	bpage = page_address(page);  in ring_buffer_alloc_read_page()
4625 	rb_init_page(bpage);  in ring_buffer_alloc_read_page()
4627 	return bpage;  in ring_buffer_alloc_read_page()
4642 	struct buffer_data_page *bpage = data;  in ring_buffer_free_read_page()  local
4643 	struct page *page = virt_to_page(bpage);  in ring_buffer_free_read_page()
4654 		cpu_buffer->free_page = bpage;  in ring_buffer_free_read_page()
4655 		bpage = NULL;  in ring_buffer_free_read_page()
4662 	free_page((unsigned long)bpage);  in ring_buffer_free_read_page()
4704 	struct buffer_data_page *bpage;  in ring_buffer_read_page()  local
4728 	bpage = *data_page;  in ring_buffer_read_page()
4729 	if (!bpage)  in ring_buffer_read_page()
4784 			memcpy(bpage->data + pos, rpage->data + rpos, size);  in ring_buffer_read_page()
4801 		local_set(&bpage->commit, pos);  in ring_buffer_read_page()
4802 		bpage->time_stamp = save_timestamp;  in ring_buffer_read_page()
4812 		rb_init_page(bpage);  in ring_buffer_read_page()
4813 		bpage = reader->page;  in ring_buffer_read_page()
4818 		*data_page = bpage;  in ring_buffer_read_page()
4826 			local_set(&bpage->commit, reader->real_end);  in ring_buffer_read_page()
4832 	commit = local_read(&bpage->commit);  in ring_buffer_read_page()
4841 			memcpy(&bpage->data[commit], &missed_events,  in ring_buffer_read_page()
4843 			local_add(RB_MISSED_STORED, &bpage->commit);  in ring_buffer_read_page()
4846 		local_add(RB_MISSED_EVENTS, &bpage->commit);  in ring_buffer_read_page()
4853 		memset(&bpage->data[commit], 0, BUF_PAGE_SIZE - commit);  in ring_buffer_read_page()