From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: [RFC NET_SCHED 00/03]: ktime + nano-second clock resolution for packet schedulers Date: Sun, 4 Mar 2007 20:05:30 +0100 (MET) Message-ID: <20070304190439.21142.66736.sendpatchset@localhost.localdomain> Cc: Patrick McHardy , shemminger@linux-foundation.org To: netdev@vger.kernel.org Return-path: Received: from stinky.trash.net ([213.144.137.162]:61544 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751817AbXCDTFb (ORCPT ); Sun, 4 Mar 2007 14:05:31 -0500 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org 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