/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License version 2 for more details (a copy is included * in the LICENSE file that accompanied this code). * * You should have received a copy of the GNU General Public License * version 2 along with this program; If not, see * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ /* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * * Copyright (c) 2011, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. * * lustre/ldlm/ldlm_plain.c * * Author: Peter Braam * Author: Phil Schwan */ /** * This file contains implementation of PLAIN lock type. * * PLAIN locks are the simplest form of LDLM locking, and are used when * there only needs to be a single lock on a resource. This avoids some * of the complexity of EXTENT and IBITS lock types, but doesn't allow * different "parts" of a resource to be locked concurrently. Example * use cases for PLAIN locks include locking of MGS configuration logs * and (as of Lustre 2.4) quota records. */ #define DEBUG_SUBSYSTEM S_LDLM #include "../include/lustre_dlm.h" #include "../include/obd_support.h" #include "../include/lustre_lib.h" #include "ldlm_internal.h" void ldlm_plain_policy_wire_to_local(const union ldlm_wire_policy_data *wpolicy, union ldlm_policy_data *lpolicy) { /* No policy for plain locks */ } void ldlm_plain_policy_local_to_wire(const union ldlm_policy_data *lpolicy, union ldlm_wire_policy_data *wpolicy) { /* No policy for plain locks */ }