diff --git a/[refs] b/[refs]
index 4d27dd6675fc..9f1e3d873d37 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 90ba983f6889e65a3b506b30dc606aa9d1d46cd2
+refs/heads/master: 4f42f80a8f08d4c3f52c4267361241885d5dee3a
diff --git a/trunk/fs/ext4/extents.c b/trunk/fs/ext4/extents.c
index bd69e906bd91..e2bb929bea93 100644
--- a/trunk/fs/ext4/extents.c
+++ b/trunk/fs/ext4/extents.c
@@ -3264,7 +3264,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 
 	if (EXT4_EXT_MAY_ZEROOUT & split_flag)
 		max_zeroout = sbi->s_extent_max_zeroout_kb >>
-			inode->i_sb->s_blocksize_bits;
+			(inode->i_sb->s_blocksize_bits - 10);
 
 	/* If extent is less than s_max_zeroout_kb, zeroout directly */
 	if (max_zeroout && (ee_len <= max_zeroout)) {