From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755266AbcIIUTj (ORCPT ); Fri, 9 Sep 2016 16:19:39 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:35642 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754414AbcIIUSg (ORCPT ); Fri, 9 Sep 2016 16:18:36 -0400 From: Nicolai Stange To: Thomas Gleixner Cc: John Stultz , linux-kernel@vger.kernel.org, Nicolai Stange Subject: [RFC v6 19/23] timer_list: print_tickdevice(): calculate ->min_delta_ns dynamically Date: Fri, 9 Sep 2016 22:18:08 +0200 Message-Id: <20160909201812.32396-4-nicstange@gmail.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20160909200033.32103-1-nicstange@gmail.com> References: <20160909200033.32103-1-nicstange@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org print_tickdevice(), assembling the per-tick device sections in /proc/timer_list, is the last user of struct clock_event_device's ->min_delta_ns member. In order to make this one fully obsolete while retaining userspace ABI, calculate the displayed value of 'min_delta_ns' on the fly from ->min_delta_ticks_adjusted. Signed-off-by: Nicolai Stange --- kernel/time/timer_list.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index ac20d4c..9067760 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -206,10 +206,11 @@ static void print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu) { struct clock_event_device *dev = td->evtdev; - u64 max_delta_ns; + u64 max_delta_ns, min_delta_ns; max_delta_ns = clockevent_delta2ns(dev->max_delta_ticks, dev); max_delta_ns = min(max_delta_ns, dev->max_delta_ns); + min_delta_ns = clockevent_delta2ns(dev->min_delta_ticks_adjusted, dev); SEQ_printf(m, "Tick Device: mode: %d\n", td->mode); if (cpu < 0) @@ -226,7 +227,7 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu) SEQ_printf(m, " max_delta_ns: %llu\n", (unsigned long long) max_delta_ns); SEQ_printf(m, " min_delta_ns: %llu\n", - (unsigned long long) dev->min_delta_ns); + (unsigned long long) min_delta_ns); SEQ_printf(m, " mult: %u\n", dev->mult); SEQ_printf(m, " shift: %u\n", dev->shift); SEQ_printf(m, " mode: %d\n", clockevent_get_state(dev)); -- 2.9.3