Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753631AbcKSQLp (ORCPT ); Sat, 19 Nov 2016 11:11:45 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:35050 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753576AbcKSQLn (ORCPT ); Sat, 19 Nov 2016 11:11:43 -0500 From: Nicolai Stange To: Thomas Gleixner Cc: John Stultz , linux-kernel@vger.kernel.org, Nicolai Stange Subject: [RFC v8 17/28] timer_list: print_tickdevice(): calculate ->min_delta_ns dynamically Date: Sat, 19 Nov 2016 17:10:25 +0100 Message-Id: <20161119161036.12679-6-nicstange@gmail.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161119160055.12491-1-nicstange@gmail.com> References: <20161119160055.12491-1-nicstange@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1439 Lines: 38 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, 4 insertions(+), 1 deletion(-) diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index ba7d8b2..12a27cb 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -206,6 +206,9 @@ static void print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu) { struct clock_event_device *dev = td->evtdev; + u64 min_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) @@ -222,7 +225,7 @@ print_tickdevice(struct seq_file *m, struct tick_device *td, int cpu) SEQ_printf(m, " max_delta_ns: %llu\n", (unsigned long long) dev->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)); -- 2.10.2