| /* | |
| * Copyright (C) 2012 Fujitsu. All rights reserved. | |
| * Written by Miao Xie <miaox@cn.fujitsu.com> | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public | |
| * License v2 as published by the Free Software Foundation. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public | |
| * License along with this program; if not, write to the | |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| * Boston, MA 021110-1307, USA. | |
| */ | |
| #ifndef __BTRFS_MATH_H | |
| #define __BTRFS_MATH_H | |
| #include <asm/div64.h> | |
| static inline u64 div_factor(u64 num, int factor) | |
| { | |
| if (factor == 10) | |
| return num; | |
| num *= factor; | |
| return div_u64(num, 10); | |
| } | |
| static inline u64 div_factor_fine(u64 num, int factor) | |
| { | |
| if (factor == 100) | |
| return num; | |
| num *= factor; | |
| return div_u64(num, 100); | |
| } | |
| #endif |