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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-22 15:58:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-22 15:58:27 -0700 |
| commit | 989412bbd2835f1475d1528846693eddbac744c8 (patch) | |
| tree | 192a4fdeeca43951cc69d30fad6b91c6196f9e8c /fs/namei.c | |
| parent | fs: fix kernel-doc warnings in dcache.c (diff) | |
| download | linux-dev-989412bbd2835f1475d1528846693eddbac744c8.tar.xz linux-dev-989412bbd2835f1475d1528846693eddbac744c8.zip | |
vfs: tidy up fs/namei.c byte-repeat word constants
In commit commit 1de5b41cd3b2 ("fs/namei.c: fix warnings on 32-bit")
Andrew said that there must be a tidier way of doing this.
This is that tidier way.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/namei.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/namei.c b/fs/namei.c index bd313d680d34..99a34717b2b0 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1455,15 +1455,10 @@ done: } EXPORT_SYMBOL(full_name_hash); -#ifdef CONFIG_64BIT -#define ONEBYTES 0x0101010101010101ul -#define SLASHBYTES 0x2f2f2f2f2f2f2f2ful -#define HIGHBITS 0x8080808080808080ul -#else -#define ONEBYTES 0x01010101ul -#define SLASHBYTES 0x2f2f2f2ful -#define HIGHBITS 0x80808080ul -#endif +#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) +#define ONEBYTES REPEAT_BYTE(0x01) +#define SLASHBYTES REPEAT_BYTE('/') +#define HIGHBITS REPEAT_BYTE(0x80) /* Return the high bit set in the first byte that is a zero */ static inline unsigned long has_zero(unsigned long a) |