diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 7bc7c724805d7fd794b6d509187c72da0f179b4e..a74b89c09f90f1dcc587b9e5b81b0dfc222257db 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -517,6 +517,8 @@ struct ext4_new_group_data {
 					 EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
 	/* Punch out blocks of an extent */
 #define EXT4_GET_BLOCKS_PUNCH_OUT_EXT		0x0020
+	/* Don't normalize allocation size (used for fallocate) */
+#define EXT4_GET_BLOCKS_NO_NORMALIZE		0x0040
 
 /*
  * Flags used by ext4_free_blocks
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 88ff3a74787b1063e4d2cb150777b785c2f2cf1f..ae65f247ceda63c29c640208ca3e85a205346e9b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3554,6 +3554,8 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 	else
 		/* disable in-core preallocation for non-regular files */
 		ar.flags = 0;
+	if (flags & EXT4_GET_BLOCKS_NO_NORMALIZE)
+		ar.flags |= EXT4_MB_HINT_NOPREALLOC;
 	newblock = ext4_mb_new_blocks(handle, &ar, &err);
 	if (!newblock)
 		goto out2;
@@ -3807,7 +3809,8 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 			break;
 		}
 		ret = ext4_map_blocks(handle, inode, &map,
-				      EXT4_GET_BLOCKS_CREATE_UNINIT_EXT);
+				      EXT4_GET_BLOCKS_CREATE_UNINIT_EXT |
+				      EXT4_GET_BLOCKS_NO_NORMALIZE);
 		if (ret <= 0) {
 #ifdef EXT4FS_DEBUG
 			WARN_ON(ret <= 0);