Add samsung specific changes

block/bio.c

@@ -25,10 +25,6 @@
 #include "blk-rq-qos.h"
 #include "blk-cgroup.h"
 
-#ifdef CONFIG_DDAR
-extern int fscrypt_dd_encrypted(struct bio_vec *bv);
-#endif
-
 #define ALLOC_CACHE_THRESHOLD	16
 #define ALLOC_CACHE_MAX		256
 
@@ -934,10 +930,6 @@ static bool bvec_try_merge_page(struct bio_vec *bv, struct page *page,
 			return false;
 	}
 
-#ifdef CONFIG_DDAR
-	if ((*same_page == false) && fscrypt_dd_encrypted(bv))
-		return false;
-#endif
 	bv->bv_len += len;
 	return true;
 }