4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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
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
27 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/linux/lustre_lib.h
38 * Basic Lustre library routines.
41 #ifndef _LINUX_LUSTRE_LIB_H
42 #define _LINUX_LUSTRE_LIB_H
45 #error Do not #include this file directly. #include <lustre_lib.h> instead
48 # include <linux/rwsem.h>
49 # include <linux/sched.h>
50 # include <linux/signal.h>
51 # include <linux/types.h>
52 #include "lustre_compat25.h"
53 #include "lustre_common.h"
56 # define LI_POISON 0x5a5a5a5a
57 #if BITS_PER_LONG > 32
58 # define LL_POISON 0x5a5a5a5a5a5a5a5aL
60 # define LL_POISON 0x5a5a5a5aL
62 # define LP_POISON ((void *)LL_POISON)
65 /* This macro is only for compatibility reasons with older Linux Lustre user
66 * tools. New ioctls should NOT use this macro as the ioctl "size". Instead
67 * the ioctl should get a "size" argument which is the actual data type used
68 * by the ioctl, to ensure the ioctl interface is versioned correctly. */
69 #define OBD_IOC_DATA_TYPE long
71 #define LUSTRE_FATAL_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | \
72 sigmask(SIGTERM) | sigmask(SIGQUIT) | \
75 /* initialize ost_lvb according to inode */
76 static inline void inode_init_lvb(struct inode *inode, struct ost_lvb *lvb)
78 lvb->lvb_size = i_size_read(inode);
79 lvb->lvb_blocks = inode->i_blocks;
80 lvb->lvb_mtime = LTIME_S(inode->i_mtime);
81 lvb->lvb_atime = LTIME_S(inode->i_atime);
82 lvb->lvb_ctime = LTIME_S(inode->i_ctime);
85 #endif /* _LUSTRE_LIB_H */