diff options
| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2017-01-24 11:03:05 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-03-08 13:00:45 +0100 |
| commit | a2203246ae483d09114329d5d1f898efb23d6168 (patch) | |
| tree | 40cea3c2a1293e7f23559c5183cf92c22312321b /kernel-lib | |
| parent | 95f515f2d12fb1c1b5a01e03d9f709570b762eeb (diff) | |
btrfs-progs: Introduce kernel sizes to cleanup large intermediate number
Large numbers like (1024 * 1024 * 1024) may cost reader/reviewer to
waste one second to convert to 1G.
Introduce kernel include/linux/sizes.h to replace any intermediate
number larger than 4096 (not including 4096) to SZ_*.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'kernel-lib')
| -rw-r--r-- | kernel-lib/sizes.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel-lib/sizes.h b/kernel-lib/sizes.h new file mode 100644 index 00000000..ce3e8150 --- /dev/null +++ b/kernel-lib/sizes.h @@ -0,0 +1,47 @@ +/* + * include/linux/sizes.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __LINUX_SIZES_H__ +#define __LINUX_SIZES_H__ + +#define SZ_1 0x00000001 +#define SZ_2 0x00000002 +#define SZ_4 0x00000004 +#define SZ_8 0x00000008 +#define SZ_16 0x00000010 +#define SZ_32 0x00000020 +#define SZ_64 0x00000040 +#define SZ_128 0x00000080 +#define SZ_256 0x00000100 +#define SZ_512 0x00000200 + +#define SZ_1K 0x00000400 +#define SZ_2K 0x00000800 +#define SZ_4K 0x00001000 +#define SZ_8K 0x00002000 +#define SZ_16K 0x00004000 +#define SZ_32K 0x00008000 +#define SZ_64K 0x00010000 +#define SZ_128K 0x00020000 +#define SZ_256K 0x00040000 +#define SZ_512K 0x00080000 + +#define SZ_1M 0x00100000 +#define SZ_2M 0x00200000 +#define SZ_4M 0x00400000 +#define SZ_8M 0x00800000 +#define SZ_16M 0x01000000 +#define SZ_32M 0x02000000 +#define SZ_64M 0x04000000 +#define SZ_128M 0x08000000 +#define SZ_256M 0x10000000 +#define SZ_512M 0x20000000 + +#define SZ_1G 0x40000000 +#define SZ_2G 0x80000000 + +#endif /* __LINUX_SIZES_H__ */ |