diff --git a/[refs] b/[refs]
index 42cc97f6c769..1c022b1f8dde 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d015641734cde55d2fce48a6db3983c8a029fe05
+refs/heads/master: 88aa3cff4e9a38b953de9fbc54c96e619a2bb9f9
diff --git a/trunk/fs/ext4/extents.c b/trunk/fs/ext4/extents.c
index 612c3d2c3824..7212947a8ca3 100644
--- a/trunk/fs/ext4/extents.c
+++ b/trunk/fs/ext4/extents.c
@@ -2819,7 +2819,7 @@ void ext4_ext_truncate(struct inode *inode)
 	down_write(&EXT4_I(inode)->i_data_sem);
 	ext4_ext_invalidate_cache(inode);
 
-	ext4_mb_discard_inode_preallocations(inode);
+	ext4_discard_reservation(inode);
 
 	/*
 	 * TODO: optimization is possible here.