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| author | Dave Young <hidave.darkstar@gmail.com> | 2008-04-18 13:38:57 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-04-21 07:59:51 +0200 |
| commit | 3f34d024c12e49fbce4009d094ae1d287084e511 (patch) | |
| tree | 106ee9f75c0b2c279fc4152643fe5dedf90e3ed5 /include/linux/jiffies.h | |
| parent | 3925e6fc1f774048404fdd910b0345b06c699eb4 (diff) | |
| download | linux-3f34d024c12e49fbce4009d094ae1d287084e511.tar.gz linux-3f34d024c12e49fbce4009d094ae1d287084e511.tar.bz2 linux-3f34d024c12e49fbce4009d094ae1d287084e511.zip | |
jiffies: 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@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/jiffies.h')
| -rw-r--r-- | include/linux/jiffies.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index e0b5b684d83f..e377e34e589e 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -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. */ |