| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright (C) 2012 Fujitsu. All rights reserved. |
| 4 | * Written by Miao Xie <miaox@cn.fujitsu.com> |
| 5 | */ |
| 6 | |
| 7 | #ifndef BTRFS_MATH_H |
| 8 | #define BTRFS_MATH_H |
| 9 | |
| 10 | #include <asm/div64.h> |
| 11 | |
| 12 | static inline u64 div_factor(u64 num, int factor) |
| 13 | { |
| 14 | if (factor == 10) |
| 15 | return num; |
| 16 | num *= factor; |
| 17 | return div_u64(num, 10); |
| 18 | } |
| 19 | |
| 20 | static inline u64 div_factor_fine(u64 num, int factor) |
| 21 | { |
| 22 | if (factor == 100) |
| 23 | return num; |
| 24 | num *= factor; |
| 25 | return div_u64(num, 100); |
| 26 | } |
| 27 | |
| 28 | #endif |