/* * 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