From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EC5CC35663 for ; Fri, 21 Feb 2020 19:51:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B17E24650 for ; Fri, 21 Feb 2020 19:51:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726817AbgBUTvv (ORCPT ); Fri, 21 Feb 2020 14:51:51 -0500 Received: from mail.kernel.org ([198.145.29.99]:43654 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726443AbgBUTvv (ORCPT ); Fri, 21 Feb 2020 14:51:51 -0500 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6C2C220722; Fri, 21 Feb 2020 19:51:50 +0000 (UTC) Date: Fri, 21 Feb 2020 14:51:48 -0500 From: Steven Rostedt To: Sebastian Andrzej Siewior Cc: Jiri Olsa , Jiri Olsa , linux-rt-users@vger.kernel.org, Thomas Gleixner , Juri Lelli , Arnaldo Carvalho de Melo Subject: Re: [PATCH RT] tracing: make preempt_lazy and migrate_disable counter smaller Message-ID: <20200221145148.26d9550b@gandalf.local.home> In-Reply-To: <20200221174419.7r5zxfkvz4yrndi2@linutronix.de> References: <20200221153541.681468-1-jolsa@kernel.org> <20200221104922.5ea8bb5f@gandalf.local.home> <20200221161030.GC657629@krava> <20200221112152.031b4230@gandalf.local.home> <20200221163735.53wt2fqoajcuj2js@linutronix.de> <20200221174419.7r5zxfkvz4yrndi2@linutronix.de> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-rt-users-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org On Fri, 21 Feb 2020 18:44:19 +0100 Sebastian Andrzej Siewior wrote: > diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h > index f3b1ef07e4a5f..c8b3f06cb5ed7 100644 > --- a/include/linux/trace_events.h > +++ b/include/linux/trace_events.h > @@ -62,9 +62,9 @@ struct trace_entry { > unsigned char flags; > unsigned char preempt_count; > int pid; > - unsigned short migrate_disable; > - unsigned short padding; > + unsigned char migrate_disable; > unsigned char preempt_lazy_count; > + unsigned short padding; > }; Do we really need the padding here? -- Steve