diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index b128bdc0f55c..1d7fde994521 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2880,12 +2880,11 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
 	if (size < i_size_read(ac->ac_inode))
 		size = i_size_read(ac->ac_inode);
 
-	/* max available blocks in a free group */
-	max = EXT4_BLOCKS_PER_GROUP(ac->ac_sb) - 1 - 1 -
-				EXT4_SB(ac->ac_sb)->s_itb_per_group;
+	/* max size of free chunks */
+	max = 2 << bsbits;
 
-#define NRL_CHECK_SIZE(req, size, max,bits)	\
-		(req <= (size) || max <= ((size) >> bits))
+#define NRL_CHECK_SIZE(req, size, max, chunk_size)	\
+		(req <= (size) || max <= (chunk_size))
 
 	/* first, try to predict filesize */
 	/* XXX: should this table be tunable? */
@@ -2904,16 +2903,16 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
 		size = 512 * 1024;
 	} else if (size <= 1024 * 1024) {
 		size = 1024 * 1024;
-	} else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, bsbits)) {
+	} else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, 2 * 1024)) {
 		start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
-						(20 - bsbits)) << 20;
-		size = 1024 * 1024;
-	} else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, bsbits)) {
+						(21 - bsbits)) << 21;
+		size = 2 * 1024 * 1024;
+	} else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, 4 * 1024)) {
 		start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
 							(22 - bsbits)) << 22;
 		size = 4 * 1024 * 1024;
 	} else if (NRL_CHECK_SIZE(ac->ac_o_ex.fe_len,
-					(8<<20)>>bsbits, max, bsbits)) {
+					(8<<20)>>bsbits, max, 8 * 1024)) {
 		start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
 							(23 - bsbits)) << 23;
 		size = 8 * 1024 * 1024;