1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see [sun.com URL with a
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * libcfs/include/libcfs/linux/linux-lock.h
38 * Basic library routines.
41 #ifndef __LIBCFS_LINUX_CFS_LOCK_H__
42 #define __LIBCFS_LINUX_CFS_LOCK_H__
44 #ifndef __LIBCFS_LIBCFS_H__
45 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
49 #include <linux/smp_lock.h>
54 * All locks' declaration are not guaranteed to be initialized,
55 * Althought some of they are initialized in Linux. All locks
56 * declared by CFS_DECL_* should be initialized explicitly.
61 * spin_lock (use Linux kernel's primitives)
68 * - spin_lock_irqsave(x, f)
69 * - spin_unlock_irqrestore(x, f)
73 * rw_semaphore (use Linux kernel's primitives)
83 * rwlock_t (use Linux kernel's primitives)
96 * - init_mutex_locked(x)
100 #define init_mutex(x) init_MUTEX(x)
101 #define init_mutex_locked(x) init_MUTEX_LOCKED(x)
102 #define mutex_up(x) up(x)
103 #define mutex_down(x) down(x)
104 #define mutex_down_trylock(x) down_trylock(x)
107 * completion (use Linux kernel's primitives)
109 * - init_complition(c)
111 * - wait_for_completion(c)
117 #include "../user-lock.h"