1 files changed, 6 insertions, 0 deletions

diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 4793f36f6518..32949df10694 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -4166,6 +4166,12 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
         struct inode *inode = old_dentry->d_inode;
         struct buffer_head *new_bh = NULL;
 
+        if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
+                ret = -EINVAL;
+                mlog_errno(ret);
+                goto out;
+        }
+
         ret = filemap_fdatawrite(inode->i_mapping);
         if (ret) {
                 mlog_errno(ret);