| /* |
| * 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.sun.com/software/products/lustre/docs/GPLv2.pdf |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| * 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 <braam@clusterfs.com> |
| * Author: Phil Schwan <phil@clusterfs.com> |
| */ |
| |
| /** |
| * 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 <lustre_dlm.h> |
| #include <obd_support.h> |
| #include <lustre_lib.h> |
| |
| #include "ldlm_internal.h" |
| |
| |
| void ldlm_plain_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy, |
| ldlm_policy_data_t *lpolicy) |
| { |
| /* No policy for plain locks */ |
| } |
| |
| void ldlm_plain_policy_local_to_wire(const ldlm_policy_data_t *lpolicy, |
| ldlm_wire_policy_data_t *wpolicy) |
| { |
| /* No policy for plain locks */ |
| } |