diff options
| author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-12-22 17:34:26 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2008-12-22 17:34:26 +1100 |
| commit | 27a0464a6cb837d3a90b6e69365dfc01cb0dff2f (patch) | |
| tree | 361f00f4d4ad4c01b6144c52004bee2b948742ad /arch/arm/include/asm/bitops.h | |
| parent | 4d9d4ebf5de848e3450e23e4db9ac74e23e5daa6 (diff) | |
| parent | 3d44cc3e01ee1b40317f79ed54324e25c4f848df (diff) | |
[XFS] Fix merge conflict in fs/xfs/xfs_rename.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
fs/xfs/xfs_rename.c
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'arch/arm/include/asm/bitops.h')
| -rw-r--r-- | arch/arm/include/asm/bitops.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index 9a1db20e032a..63a481fbbed4 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -237,6 +237,7 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset); #if __LINUX_ARM_ARCH__ < 5 #include <asm-generic/bitops/ffz.h> +#include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/ffs.h> @@ -277,16 +278,19 @@ static inline int constant_fls(int x) * the clz instruction for much better code efficiency. */ -#define __fls(x) \ - ( __builtin_constant_p(x) ? constant_fls(x) : \ - ({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) ) - -/* Implement fls() in C so that 64-bit args are suitably truncated */ static inline int fls(int x) { - return __fls(x); + int ret; + + if (__builtin_constant_p(x)) + return constant_fls(x); + + asm("clz\t%0, %1" : "=r" (ret) : "r" (x) : "cc"); + ret = 32 - ret; + return ret; } +#define __fls(x) (fls(x) - 1) #define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); }) #define __ffs(x) (ffs(x) - 1) #define ffz(x) __ffs( ~(x) ) |