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Message-ID: <20080310012202.GA2958@darkstar.te-china.tietoenator.com> Date: Mon, 10 Mar 2008 09:22:02 +0800 From: Dave Young <hidave.darkstar@...il.com> To: akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, hannes@...urebad.de, alan@...rguk.ukuu.org.uk Subject: [PATCH v3] Add time_is_after_jiffies and others which compare with jiffies Most of time_after like macros usages just compare jiffies and another number, so here add some time_is_* macros for convenience. Signed-off-by: Dave Young <hidave.darkstar@...il.com> --- include/linux/jiffies.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff -upr linux/include/linux/jiffies.h linux.new/include/linux/jiffies.h --- linux/include/linux/jiffies.h 2008-03-07 10:40:04.000000000 +0800 +++ linux.new/include/linux/jiffies.h 2008-03-10 09:11:36.000000000 +0800 @@ -135,6 +135,22 @@ static inline u64 get_jiffies_64(void) #define time_before_eq64(a,b) time_after_eq64(b,a) /* + * These four macros compare jiffies and 'a' for convenience. + */ + +/* time_is_before_jiffies(a) return true if a is before jiffies */ +#define time_is_before_jiffies(a) time_after(jiffies, a) + +/* time_is_after_jiffies(a) return true if a is after jiffies */ +#define time_is_after_jiffies(a) time_before(jiffies, a) + +/* time_is_before_eq_jiffies(a) return true if a is before or equal to jiffies*/ +#define time_is_before_eq_jiffies(a) time_after_eq(jiffies, a) + +/* time_is_after_eq_jiffies(a) return true if a is after or equal to jiffies*/ +#define time_is_after_eq_jiffies(a) time_before_eq(jiffies, a) + +/* * Have the 32 bit jiffies value wrap 5 minutes after boot * so jiffies wrap bugs show up earlier. */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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