These patches convert the GETTIMEOFDAY packet scheduler clock source to
ktime (based on Stephen's patch) and add support for using nano-second
clock resolution. I chose a scalar time representation within the packet
schedulers instead of ktime_t since it minimizes the ktime_to_ns() calls
in most cases, it allows to clean up pkt_sched.h quite a bit and HFSC
needs it anyway.
Unlike my previous attempt at this, these patches keep old iproute
versions working with nano-second resolution with the exception of HFSC.
I'm not sure what to do about HFSC yet, so just RFC for now.
include/linux/jiffies.h | 2
include/net/pkt_sched.h | 141 ++++++++++--------------------------------------
kernel/hrtimer.c | 1
kernel/time.c | 26 ++++++++
net/sched/Kconfig | 17 +++++
net/sched/sch_api.c | 11 ++-
net/sched/sch_hfsc.c | 37 +++++-------
7 files changed, 100 insertions(+), 135 deletions(-)
Patrick McHardy:
[TIME]: Add jiffies_to_nsecs/nsecs_to_jiffies
[NET_SCHED]: Replace gettimeofday clocksource by ktime
[NET_SCHED]: Add support for nano-second clock resolution
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