Messages in this thread Patch in this message | | | Subject | [RESEND PATCH 1/1] bitops.h: move out get_count_order[_long]() from __KERNEL__ scope | From | zijun_hu <> | Date | Tue, 16 Aug 2016 15:46:22 +0800 |
| |
From: zijun_hu <zijun_hu@htc.com>
move out get_count_order[_long]() definitions from scope limited by macro __KERNEL__
it not only make both functions available in wider region regardless of whether __KERNEL__ is defined but also keep original region for get_count_order() before the recent commit c513b4cd2fe9 ("mm-vmalloc-fix-align-value-calculation-error-v2-fix-fix")
Signed-off-by: zijun_hu <zijun_hu@htc.com> --- this patch is based on the newest mmotm/linux-next tree and can be applied directly
include/linux/bitops.h | 52 +++++++++++++++++++++++++------------------------- 1 file changed, 26 insertions(+), 26 deletions(-)
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 6f202c8fe4a6..a83c822c35c2 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -181,6 +181,32 @@ static inline unsigned fls_long(unsigned long l) return fls64(l); } +static inline int get_count_order(unsigned int count) +{ + int order; + + order = fls(count) - 1; + if (count & (count - 1)) + order++; + return order; +} + +/** + * get_count_order_long - get order after rounding @l up to power of 2 + * @l: parameter + * + * it is same as get_count_order() but with long type parameter + */ +static inline int get_count_order_long(unsigned long l) +{ + if (l == 0UL) + return -1; + else if (l & (l - 1UL)) + return (int)fls_long(l); + else + return (int)fls_long(l) - 1; +} + /** * __ffs64 - find first set bit in a 64 bit word * @word: The 64 bit word @@ -233,32 +259,6 @@ static inline unsigned long __ffs64(u64 word) }) #endif -static inline int get_count_order(unsigned int count) -{ - int order; - - order = fls(count) - 1; - if (count & (count - 1)) - order++; - return order; -} - -/** - * get_count_order_long - get order after rounding @l up to power of 2 - * @l: parameter - * - * it is same as get_count_order() but with long type parameter - */ -static inline int get_count_order_long(unsigned long l) -{ - if (l == 0UL) - return -1; - else if (l & (l - 1UL)) - return (int)fls_long(l); - else - return (int)fls_long(l) - 1; -} - #ifndef find_last_bit /** * find_last_bit - find the last set bit in a memory region -- 1.9.1
| |