| Date | Fri, 30 Mar 2012 12:57:56 -0700 | From | Greg KH <> | Subject | [ 034/108] math: Introduce div64_long |
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3.0-stable review patch. If anyone has any objections, please let me know.
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From: Sasha Levin <levinsasha928@gmail.com>
commit f910381a55cdaa097030291f272f6e6e4380c39a upstream.
Add a div64_long macro which is used to devide a 64bit number by a long (which can be 4 bytes on 32bit systems and 8 bytes on 64bit systems).
Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Cc: johnstul@us.ibm.com Link: http://lkml.kernel.org/r/1331829374-31543-1-git-send-email-levinsasha928@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- include/linux/math64.h | 4 ++++ 1 file changed, 4 insertions(+)
--- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -6,6 +6,8 @@ #if BITS_PER_LONG == 64 +#define div64_long(x,y) div64_s64((x),(y)) + /** * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder * @@ -45,6 +47,8 @@ static inline s64 div64_s64(s64 dividend #elif BITS_PER_LONG == 32 +#define div64_long(x,y) div_s64((x),(y)) + #ifndef div_u64_rem static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) {
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