Messages in this thread Patch in this message | | | Date | Mon, 10 Mar 2008 09:22:02 +0800 | From | Dave Young <> | Subject | [PATCH v3] Add time_is_after_jiffies and others which compare with jiffies |
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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@gmail.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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