Commit 14d32b25 authored Jul 31, 2018 by Matteo Croce Committed by Pablo Neira Ayuso Aug 16, 2018

jiffies: add utility function to calculate delta in ms



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>

parent a53b42c1

include/linux/jiffies.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -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);