Merge branch 'misc-cleanups-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.5

Signed-off-by: Chris Mason <clm@fb.com>

fs/btrfs/extent_io.c

@@ -4292,7 +4292,7 @@ int try_release_extent_mapping(struct extent_map_tree *map,
 	u64 end = start + PAGE_CACHE_SIZE - 1;
 
 	if (gfpflags_allow_blocking(mask) &&
-	    page->mapping->host->i_size > 16 * 1024 * 1024) {
+	    page->mapping->host->i_size > SZ_16M) {
 		u64 len;
 		while (start <= end) {
 			len = end - start + 1;