From: Matteo Croce <mcr...@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.duma...@gmail.com>
Signed-off-by: Matteo Croce <mcr...@redhat.com>
Reviewed-by: Eric Dumazet <eduma...@google.com>
Acked-by: Simon Horman <ho...@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pa...@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);
--
1.9.1
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