1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_PARAM_H_ 30 #define _SYS_PARAM_H_ 31 32 #include <limits.h> 33 #include <linux/param.h> 34 #include <sys/cdefs.h> 35 36 #define DEV_BSIZE 512 37 38 #define MAXPATHLEN PATH_MAX 39 #define MAXSYMLINKS 8 40 41 /* Macros for counting and rounding. */ 42 #ifndef howmany 43 #define howmany(x, y) (((x)+((y)-1))/(y)) 44 #endif 45 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) 46 #define powerof2(x) ((((x)-1)&(x))==0) 47 48 /* Macros for min/max. */ 49 #define MIN(a,b) (((a)<(b))?(a):(b)) 50 #define MAX(a,b) (((a)>(b))?(a):(b)) 51 52 #endif /* _SYS_PARAM_H_ */ 53