9p: Fix setting of protocol flags in v9fs_session_info structure.

This patch fixes a simple bug I left behind in my earlier protocol
negotiation patch.

Thanks,
Sripathi.

Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

fs/9p/v9fs.c

@@ -241,7 +241,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 	list_add(&v9ses->slist, &v9fs_sessionlist);
 	spin_unlock(&v9fs_sessionlist_lock);
 
-	v9ses->flags = V9FS_PROTO_2000U | V9FS_ACCESS_USER;
+	v9ses->flags = V9FS_ACCESS_USER;
 	strcpy(v9ses->uname, V9FS_DEFUSER);
 	strcpy(v9ses->aname, V9FS_DEFANAME);
 	v9ses->uid = ~0;
@@ -262,8 +262,10 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 		goto error;
 	}
 
-	if (!p9_is_proto_dotu(v9ses->clnt))
-		v9ses->flags &= ~V9FS_PROTO_2000U;
+	if (p9_is_proto_dotl(v9ses->clnt))
+		v9ses->flags |= V9FS_PROTO_2000L;
+	else if (p9_is_proto_dotu(v9ses->clnt))
+		v9ses->flags |= V9FS_PROTO_2000U;
 
 	v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;