51 		struct page *page = bv->bv_page;  in mpage_end_io()  local
52 		page_endio(page, bio_data_dir(bio), err);  in mpage_end_io()
98 map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block)   in map_buffer_to_page()  argument
100 	struct inode *inode = page->mapping->host;  in map_buffer_to_page()
104 	if (!page_has_buffers(page)) {  in map_buffer_to_page()
111 			SetPageUptodate(page);      in map_buffer_to_page()
114 		create_empty_buffers(page, 1 << inode->i_blkbits, 0);  in map_buffer_to_page()
116 	head = page_buffers(page);  in map_buffer_to_page()
140 do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,  in do_mpage_readpage()  argument
144 	struct inode *inode = page->mapping->host;  in do_mpage_readpage()
160 	if (page_has_buffers(page))  in do_mpage_readpage()
163 	block_in_file = (sector_t)page->index << (PAGE_CACHE_SHIFT - blkbits);  in do_mpage_readpage()
197 	map_bh->b_page = page;  in do_mpage_readpage()
225 			map_buffer_to_page(page, map_bh, page_block);  in do_mpage_readpage()
250 		zero_user_segment(page, first_hole << blkbits, PAGE_CACHE_SIZE);  in do_mpage_readpage()
252 			SetPageUptodate(page);  in do_mpage_readpage()
253 			unlock_page(page);  in do_mpage_readpage()
257 		SetPageMappedToDisk(page);  in do_mpage_readpage()
260 	if (fully_mapped && blocks_per_page == 1 && !PageUptodate(page) &&  in do_mpage_readpage()
261 	    cleancache_get_page(page) == 0) {  in do_mpage_readpage()
262 		SetPageUptodate(page);  in do_mpage_readpage()
276 								page))  in do_mpage_readpage()
287 	if (bio_add_page(bio, page, length, 0) < length) {  in do_mpage_readpage()
305 	if (!PageUptodate(page))  in do_mpage_readpage()
306 	        block_read_full_page(page, get_block);  in do_mpage_readpage()
308 		unlock_page(page);  in do_mpage_readpage()
368 		struct page *page = list_entry(pages->prev, struct page, lru);  in mpage_readpages()  local
370 		prefetchw(&page->flags);  in mpage_readpages()
371 		list_del(&page->lru);  in mpage_readpages()
372 		if (!add_to_page_cache_lru(page, mapping,  in mpage_readpages()
373 					page->index, GFP_KERNEL)) {  in mpage_readpages()
374 			bio = do_mpage_readpage(bio, page,  in mpage_readpages()
380 		page_cache_release(page);  in mpage_readpages()
392 int mpage_readpage(struct page *page, get_block_t get_block)  in mpage_readpage()  argument
401 	bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio,  in mpage_readpage()
437 static void clean_buffers(struct page *page, unsigned first_unmapped)  in clean_buffers()  argument
441 	if (!page_has_buffers(page))  in clean_buffers()
443 	head = page_buffers(page);  in clean_buffers()
458 	if (buffer_heads_over_limit && PageUptodate(page))  in clean_buffers()
459 		try_to_free_buffers(page);  in clean_buffers()
462 static int __mpage_writepage(struct page *page, struct writeback_control *wbc,  in __mpage_writepage()  argument
467 	struct address_space *mapping = page->mapping;  in __mpage_writepage()
468 	struct inode *inode = page->mapping->host;  in __mpage_writepage()
486 	if (page_has_buffers(page)) {  in __mpage_writepage()
487 		struct buffer_head *head = page_buffers(page);  in __mpage_writepage()
539 	BUG_ON(!PageUptodate(page));  in __mpage_writepage()
540 	block_in_file = (sector_t)page->index << (PAGE_CACHE_SHIFT - blkbits);  in __mpage_writepage()
542 	map_bh.b_page = page;  in __mpage_writepage()
573 	if (page->index >= end_index) {  in __mpage_writepage()
584 		if (page->index > end_index || !offset)  in __mpage_writepage()
586 		zero_user_segment(page, offset, PAGE_CACHE_SIZE);  in __mpage_writepage()
599 								page, wbc)) {  in __mpage_writepage()
600 				clean_buffers(page, first_unmapped);  in __mpage_writepage()
616 	if (bio_add_page(bio, page, length, 0) < length) {  in __mpage_writepage()
621 	clean_buffers(page, first_unmapped);  in __mpage_writepage()
623 	BUG_ON(PageWriteback(page));  in __mpage_writepage()
624 	set_page_writeback(page);  in __mpage_writepage()
625 	unlock_page(page);  in __mpage_writepage()
642 		ret = mapping->a_ops->writepage(page, wbc);  in __mpage_writepage()
703 int mpage_writepage(struct page *page, get_block_t get_block,  in mpage_writepage()  argument
712 	int ret = __mpage_writepage(page, wbc, &mpd);  in mpage_writepage()