linux-kernel - Re: [PATCH v3] Add time_is_after_jiffies and others which compare with jiffies

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Message-Id: <20080311121553.6214.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Tue, 11 Mar 2008 12:17:27 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Dave Young <hidave.darkstar@...il.com>
Cc:	kosaki.motohiro@...fujitsu.com, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, hannes@...urebad.de,
	alan@...rguk.ukuu.org.uk
Subject: Re: [PATCH v3] Add time_is_after_jiffies and others which compare with jiffies

Hi

Why don't you make jiffies_64 stuff?



> 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.
>   */
> --
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