From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcin Slusarz Subject: [PATCH 1/2] ktime: add ktime_compare Date: Mon, 2 Mar 2009 23:42:51 +0100 Message-ID: <1236033772-20329-1-git-send-email-marcin.slusarz@gmail.com> Return-path: Received: from mail-bw0-f178.google.com ([209.85.218.178]:50109 "EHLO mail-bw0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753265AbZCBWnC (ORCPT ); Mon, 2 Mar 2009 17:43:02 -0500 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: LKML Cc: linux-input@vger.kernel.org, Thomas Gleixner , Ingo Molnar add ktime_compare as an analogy to timeval_compare/timespec_compare Signed-off-by: Marcin Slusarz Cc: Thomas Gleixner Cc: Ingo Molnar --- include/linux/ktime.h | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-) diff --git a/include/linux/ktime.h b/include/linux/ktime.h index ce59832..4590f95 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -130,6 +130,20 @@ static inline ktime_t timeval_to_ktime(struct timeval tv) /* Convert ktime_t to nanoseconds - NOP in the scalar storage format: */ #define ktime_to_ns(kt) ((kt).tv64) +/* + * lhs < rhs: return <0 + * lhs == rhs: return 0 + * lhs > rhs: return >0 + */ +static inline int ktime_compare(ktime_t lhs, ktime_t rhs) +{ + if (lhs.tv64 < rhs.tv64) + return -1; + if (lhs.tv64 > rhs.tv64) + return 1; + return 0; +} + #else /* @@ -275,6 +289,20 @@ static inline s64 ktime_to_ns(const ktime_t kt) return (s64) kt.tv.sec * NSEC_PER_SEC + kt.tv.nsec; } +/* + * lhs < rhs: return <0 + * lhs == rhs: return 0 + * lhs > rhs: return >0 + */ +static inline int ktime_compare(ktime_t lhs, ktime_t rhs) +{ + if (lhs.sec < rhs.sec) + return -1; + if (lhs.sec > rhs.sec) + return 1; + return lhs.nsec - rhs.nsec; +} + #endif /** -- 1.6.0.6