Commit 9e5e6d4e authored by David Sterba's avatar David Sterba
Browse files

btrfs: zlib: use copy_page for full page copy 



The copy_page helper may use an optimized version for full page copy
(eg. on s390 there's a special instruction for that), there's one more
left to convert.

Reviewed-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent e2a04165

fs/btrfs/zlib.c

+2 −2
Original line number Diff line number Diff line
@@ -155,8 +155,8 @@ int zlib_compress_pages(struct list_head *ws, struct address_space *mapping, 
					in_page = find_get_page(mapping,

								start >> PAGE_SHIFT);

					data_in = kmap_local_page(in_page);

					memcpy(workspace->buf + i * PAGE_SIZE,

					       data_in, PAGE_SIZE);

					copy_page(workspace->buf + i * PAGE_SIZE,

						  data_in);

					start += PAGE_SIZE;

				}

				workspace->strm.next_in = workspace->buf;