projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9888c340 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 3fed40cc MX |
2 | /* |
| 3 | * Copyright (C) 2012 Fujitsu. All rights reserved. | |
| 4 | * Written by Miao Xie <miaox@cn.fujitsu.com> | |
| 3fed40cc MX |
5 | */ |
| 6 | ||
| 9888c340 DS |
7 | #ifndef BTRFS_MATH_H |
| 8 | #define BTRFS_MATH_H | |
| 3fed40cc MX |
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; | |
| f8c269d7 | 17 | return div_u64(num, 10); |
| 3fed40cc MX |
18 | } |
| 19 | ||
| 20 | static inline u64 div_factor_fine(u64 num, int factor) | |
| 21 | { | |
| 22 | if (factor == 100) | |
| 23 | return num; | |
| 24 | num *= factor; | |
| f8c269d7 | 25 | return div_u64(num, 100); |
| 3fed40cc MX |
26 | } |
| 27 | ||
| 28 | #endif |