diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index aaeb219..dd91f4e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -758,7 +758,7 @@ static noinline int compress_file_range(struct async_chunk *async_chunk)
 		 * win, compare the page count read with the blocks on disk,
 		 * compression must free at least one sector size
 		 */
-		total_in = ALIGN(total_in, PAGE_SIZE);
+		total_in = round_up(total_in, fs_info->sectorsize);
 		if (total_compressed + blocksize <= total_in) {
 			compressed_extents++;