193 static struct page *zero_page;		/* used in certain error cases */
529 static int ceph_tcp_recvpage(struct socket *sock, struct page *page,  in ceph_tcp_recvpage()  argument
537 	kaddr = kmap(page);  in ceph_tcp_recvpage()
540 	kunmap(page);  in ceph_tcp_recvpage()
566 static int __ceph_tcp_sendpage(struct socket *sock, struct page *page,  in __ceph_tcp_sendpage()  argument
572 	ret = kernel_sendpage(sock, page, offset, size, flags);  in __ceph_tcp_sendpage()
579 static int ceph_tcp_sendpage(struct socket *sock, struct page *page,  in ceph_tcp_sendpage()  argument
587 	if (page_count(page) >= 1)  in ceph_tcp_sendpage()
588 		return __ceph_tcp_sendpage(sock, page, offset, size, more);  in ceph_tcp_sendpage()
590 	iov.iov_base = kmap(page) + offset;  in ceph_tcp_sendpage()
593 	kunmap(page);  in ceph_tcp_sendpage()
813 static struct page *ceph_msg_data_bio_next(struct ceph_msg_data_cursor *cursor,  in ceph_msg_data_bio_next()
912 static struct page *
968 	struct page *page;  in ceph_msg_data_pagelist_cursor_init()  local
979 	page = list_first_entry(&pagelist->head, struct page, lru);  in ceph_msg_data_pagelist_cursor_init()
982 	cursor->page = page;  in ceph_msg_data_pagelist_cursor_init()
987 static struct page *
999 	BUG_ON(!cursor->page);  in ceph_msg_data_pagelist_next()
1009 	return cursor->page;  in ceph_msg_data_pagelist_next()
1039 	BUG_ON(list_is_last(&cursor->page->lru, &pagelist->head));  in ceph_msg_data_pagelist_advance()
1040 	cursor->page = list_entry_next(cursor->page, lru);  in ceph_msg_data_pagelist_advance()
1100 static struct page *ceph_msg_data_next(struct ceph_msg_data_cursor *cursor,  in ceph_msg_data_next()
1104 	struct page *page;  in ceph_msg_data_next()  local
1108 		page = ceph_msg_data_pagelist_next(cursor, page_offset, length);  in ceph_msg_data_next()
1111 		page = ceph_msg_data_pages_next(cursor, page_offset, length);  in ceph_msg_data_next()
1115 		page = ceph_msg_data_bio_next(cursor, page_offset, length);  in ceph_msg_data_next()
1120 		page = NULL;  in ceph_msg_data_next()
1123 	BUG_ON(!page);  in ceph_msg_data_next()
1129 	return page;  in ceph_msg_data_next()
1478 static u32 ceph_crc32c_page(u32 crc, struct page *page,  in ceph_crc32c_page()  argument
1484 	kaddr = kmap(page);  in ceph_crc32c_page()
1487 	kunmap(page);  in ceph_crc32c_page()
1520 		struct page *page;  in write_partial_message_data()  local
1527 		page = ceph_msg_data_next(&msg->cursor, &page_offset, &length,  in write_partial_message_data()
1529 		ret = ceph_tcp_sendpage(con->sock, page, page_offset,  in write_partial_message_data()
1538 			crc = ceph_crc32c_page(crc, page, page_offset, length);  in write_partial_message_data()
2217 	struct page *page;  in read_partial_msg_data()  local
2230 		page = ceph_msg_data_next(&msg->cursor, &page_offset, &length,  in read_partial_msg_data()
2232 		ret = ceph_tcp_recvpage(con->sock, page, page_offset, length);  in read_partial_msg_data()
2241 			crc = ceph_crc32c_page(crc, page, page_offset, ret);  in read_partial_msg_data()
3097 void ceph_msg_data_add_pages(struct ceph_msg *msg, struct page **pages,  in ceph_msg_data_add_pages()