1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index effd375ece80..c7305443e100 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -593,7 +593,7 @@ static void init_once(struct kmem_cache *cachep, void *foo)
 #ifdef CONFIG_EXT4DEV_FS_XATTR
         init_rwsem(&ei->xattr_sem);
 #endif
-        mutex_init(&ei->truncate_mutex);
+        init_rwsem(&ei->i_data_sem);
         inode_init_once(&ei->vfs_inode);
 }