1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/*
* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LVM_UTIL_H
#define _LVM_UTIL_H
#define min(a, b) ({ typeof(a) _a = (a); \
typeof(b) _b = (b); \
(void) (&_a == &_b); \
_a < _b ? _a : _b; })
#define max(a, b) ({ typeof(a) _a = (a); \
typeof(b) _b = (b); \
(void) (&_a == &_b); \
_a > _b ? _a : _b; })
#ifdef __clang__
#define uninitialized_var(x) x
#else
#define uninitialized_var(x) x = x
#endif
#define KERNEL_VERSION(major, minor, release) (((major) << 16) + ((minor) << 8) + (release))
#endif
|