From: Matteo Croce mcroce@redhat.com
add jiffies_delta_to_msecs() helper func to calculate the delta between two times and eventually 0 if negative.
Suggested-by: Eric Dumazet eric.dumazet@gmail.com Signed-off-by: Matteo Croce mcroce@redhat.com Reviewed-by: Eric Dumazet edumazet@google.com Acked-by: Simon Horman horms@verge.net.au Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org --- include/linux/jiffies.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index a27cf66..fa92824 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -447,6 +447,11 @@ static inline clock_t jiffies_delta_to_clock_t(long delta) return jiffies_to_clock_t(max(0L, delta)); }
+static inline unsigned int jiffies_delta_to_msecs(long delta) +{ + return jiffies_to_msecs(max(0L, delta)); +} + extern unsigned long clock_t_to_jiffies(unsigned long x); extern u64 jiffies_64_to_clock_t(u64 x); extern u64 nsec_to_clock_t(u64 x);