projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d7e09d03 PT |
1 | /* |
| 2 | * GPL HEADER START | |
| 3 | * | |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 only, | |
| 8 | * as published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but | |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * General Public License version 2 for more details (a copy is included | |
| 14 | * in the LICENSE file that accompanied this code). | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * version 2 along with this program; If not, see | |
| 18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
| 19 | * | |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 22 | * have any questions. | |
| 23 | * | |
| 24 | * GPL HEADER END | |
| 25 | */ | |
| 26 | /* | |
| 27 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 28 | * Use is subject to license terms. | |
| 29 | * | |
| 30 | * Copyright (c) 2011, Intel Corporation. | |
| 31 | */ | |
| 32 | /* | |
| 33 | * This file is part of Lustre, http://www.lustre.org/ | |
| 34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
| 35 | * | |
| 36 | * lustre/ldlm/ldlm_plain.c | |
| 37 | * | |
| 38 | * Author: Peter Braam <braam@clusterfs.com> | |
| 39 | * Author: Phil Schwan <phil@clusterfs.com> | |
| 40 | */ | |
| 41 | ||
| 42 | /** | |
| 43 | * This file contains implementation of PLAIN lock type. | |
| 44 | * | |
| 45 | * PLAIN locks are the simplest form of LDLM locking, and are used when | |
| 46 | * there only needs to be a single lock on a resource. This avoids some | |
| 47 | * of the complexity of EXTENT and IBITS lock types, but doesn't allow | |
| 48 | * different "parts" of a resource to be locked concurrently. Example | |
| 49 | * use cases for PLAIN locks include locking of MGS configuration logs | |
| 50 | * and (as of Lustre 2.4) quota records. | |
| 51 | */ | |
| 52 | ||
| 53 | #define DEBUG_SUBSYSTEM S_LDLM | |
| 54 | ||
| e27db149 GKH |
55 | #include "../include/lustre_dlm.h" |
| 56 | #include "../include/obd_support.h" | |
| 57 | #include "../include/lustre_lib.h" | |
| d7e09d03 PT |
58 | |
| 59 | #include "ldlm_internal.h" | |
| 60 | ||
| 61 | ||
| 62 | void ldlm_plain_policy_wire_to_local(const ldlm_wire_policy_data_t *wpolicy, | |
| 63 | ldlm_policy_data_t *lpolicy) | |
| 64 | { | |
| 65 | /* No policy for plain locks */ | |
| 66 | } | |
| 67 | ||
| 68 | void ldlm_plain_policy_local_to_wire(const ldlm_policy_data_t *lpolicy, | |
| 69 | ldlm_wire_policy_data_t *wpolicy) | |
| 70 | { | |
| 71 | /* No policy for plain locks */ | |
| 72 | } |