52 	struct page **compressed_pages;
120 	struct page *page;  in check_compressed_csum()  local
130 		page = cb->compressed_pages[i];  in check_compressed_csum()
133 		kaddr = kmap_atomic(page, KM_USER0);  in check_compressed_csum()
170 	struct page *page;  in end_compressed_bio_read()  local
204 		page = cb->compressed_pages[index];  in end_compressed_bio_read()
205 		page->mapping = NULL;  in end_compressed_bio_read()
206 		page_cache_release(page);  in end_compressed_bio_read()
244 	struct page *pages[16];  in end_compressed_writeback()
282 	struct page *page;  in end_compressed_bio_write()  local
315 		page = cb->compressed_pages[index];  in end_compressed_bio_write()
316 		page->mapping = NULL;  in end_compressed_bio_write()
317 		page_cache_release(page);  in end_compressed_bio_write()
339 				 struct page **compressed_pages,  in btrfs_submit_compressed_write()
348 	struct page *page;  in btrfs_submit_compressed_write()  local
376 		page = compressed_pages[page_index];  in btrfs_submit_compressed_write()
377 		page->mapping = inode->i_mapping;  in btrfs_submit_compressed_write()
379 			ret = io_tree->ops->merge_bio_hook(page, 0,  in btrfs_submit_compressed_write()
385 		page->mapping = NULL;  in btrfs_submit_compressed_write()
386 		if (ret || bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_write()
411 			bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_write()
445 	struct page *page;  in add_ra_bio_pages()  local
455 	page = cb->orig_bio->bi_io_vec[cb->orig_bio->bi_vcnt - 1].bv_page;  in add_ra_bio_pages()
456 	last_offset = (page_offset(page) + PAGE_CACHE_SIZE);  in add_ra_bio_pages()
473 		page = radix_tree_lookup(&mapping->page_tree, page_index);  in add_ra_bio_pages()
475 		if (page) {  in add_ra_bio_pages()
482 		page = alloc_page(mapping_gfp_mask(mapping) | GFP_NOFS);  in add_ra_bio_pages()
483 		if (!page)  in add_ra_bio_pages()
486 		page->index = page_index;  in add_ra_bio_pages()
491 		if (add_to_page_cache(page, mapping,  in add_ra_bio_pages()
492 				      page->index, GFP_NOFS)) {  in add_ra_bio_pages()
493 			page_cache_release(page);  in add_ra_bio_pages()
498 		page_cache_get(page);  in add_ra_bio_pages()
499 		if (!pagevec_add(&pvec, page))  in add_ra_bio_pages()
508 		set_page_extent_mapped(page);  in add_ra_bio_pages()
520 			unlock_page(page);  in add_ra_bio_pages()
521 			page_cache_release(page);  in add_ra_bio_pages()
526 		if (page->index == end_index) {  in add_ra_bio_pages()
533 				userpage = kmap_atomic(page, KM_USER0);  in add_ra_bio_pages()
535 				flush_dcache_page(page);  in add_ra_bio_pages()
540 		ret = bio_add_page(cb->orig_bio, page,  in add_ra_bio_pages()
545 			page_cache_release(page);  in add_ra_bio_pages()
548 			unlock_page(page);  in add_ra_bio_pages()
549 			page_cache_release(page);  in add_ra_bio_pages()
583 	struct page *page;  in btrfs_submit_compressed_read()  local
624 	cb->compressed_pages = kmalloc(sizeof(struct page *) * nr_pages,  in btrfs_submit_compressed_read()
646 		page = cb->compressed_pages[page_index];  in btrfs_submit_compressed_read()
647 		page->mapping = inode->i_mapping;  in btrfs_submit_compressed_read()
648 		page->index = em_start >> PAGE_CACHE_SHIFT;  in btrfs_submit_compressed_read()
651 			ret = tree->ops->merge_bio_hook(page, 0,  in btrfs_submit_compressed_read()
657 		page->mapping = NULL;  in btrfs_submit_compressed_read()
658 		if (ret || bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_read()
691 			bio_add_page(comp_bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_read()