diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2009-05-14 02:56:32 +0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe2.(none)> | 2009-06-11 23:02:31 +0400 |
| commit | 9858c60cc2d33b18367b2bc6947e3ea23db26ccb (patch) | |
| tree | 7c16d44461bbecf58257c5b6344f1ed01d137a79 /include | |
| parent | d7c4f1b78afeedfc22b1756fcdc1acbe84284d74 (diff) | |
| download | linux-9858c60cc2d33b18367b2bc6947e3ea23db26ccb.tar.xz | |
asm-generic: make bitops.h usable
bitops.h apparently suffered from some level of bitrot, it
was missing the smp_mb__{before,after}_clear_bit functions,
and included other headers in an invalid order.
This changes the file so that new architectures can use
it out of the box.
Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/bitops.h | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h index c9f369c4bd7e..a54f4421a24d 100644 --- a/include/asm-generic/bitops.h +++ b/include/asm-generic/bitops.h @@ -1,19 +1,29 @@ -#ifndef _ASM_GENERIC_BITOPS_H_ -#define _ASM_GENERIC_BITOPS_H_ +#ifndef __ASM_GENERIC_BITOPS_H +#define __ASM_GENERIC_BITOPS_H /* * For the benefit of those who are trying to port Linux to another * architecture, here are some C-language equivalents. You should * recode these in the native assembly language, if at all possible. - * + * * C language equivalents written by Theodore Ts'o, 9/26/92 */ -#include <asm-generic/bitops/atomic.h> -#include <asm-generic/bitops/non-atomic.h> +#include <linux/irqflags.h> +#include <linux/compiler.h> + +/* + * clear_bit may not imply a memory barrier + */ +#ifndef smp_mb__before_clear_bit +#define smp_mb__before_clear_bit() smp_mb() +#define smp_mb__after_clear_bit() smp_mb() +#endif + #include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/ffz.h> #include <asm-generic/bitops/fls.h> +#include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> #include <asm-generic/bitops/find.h> @@ -26,8 +36,10 @@ #include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/lock.h> +#include <asm-generic/bitops/atomic.h> +#include <asm-generic/bitops/non-atomic.h> #include <asm-generic/bitops/ext2-non-atomic.h> #include <asm-generic/bitops/ext2-atomic.h> #include <asm-generic/bitops/minix.h> -#endif /* _ASM_GENERIC_BITOPS_H */ +#endif /* __ASM_GENERIC_BITOPS_H */ |