CIFS: Implement follow_link for SMB2

that allows to access files through symlink created on a server.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 69d2c82..42ef03b 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -172,6 +172,9 @@
 		if (cifs_dfs_is_possible(cifs_sb) &&
 		    (fattr->cf_cifsattrs & ATTR_REPARSE))
 			fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
+	} else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
+		fattr->cf_mode = S_IFLNK;
+		fattr->cf_dtype = DT_LNK;
 	} else {
 		fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
 		fattr->cf_dtype = DT_REG;