| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Copyright (C) 2012 Fujitsu. All rights reserved. | |
| * Written by Miao Xie <miaox@cn.fujitsu.com> | |
| */ | |
| #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 |