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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 B55D2C35E01 for ; Tue, 25 Feb 2020 14:50:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C14A2064A for ; Tue, 25 Feb 2020 14:50:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="irYTkGz7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730017AbgBYOuS (ORCPT ); Tue, 25 Feb 2020 09:50:18 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:40461 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729922AbgBYOuS (ORCPT ); Tue, 25 Feb 2020 09:50:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582642216; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=GonAkwVlYf7mzVM7tAIusLAuxzdFzrvz8yw0t7Xi+OU=; b=irYTkGz7lxIK+X4SQrAhw2KvrH4aTNc0IBR6qjuL8AR9z1zV4AFEU3dQqmlSWImxK2ujcu ngna4FojGDicRCs7kZHJkkluiC332H7b4PUs6njnQHmrvPLuyO5G6NQ3s0ELKdkvjFVrbq 9mvoV+ohHKHb32IVthEtoyLuISrwH9g= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-36-grAhexfyM1Sh_2OT5sOm8A-1; Tue, 25 Feb 2020 09:50:10 -0500 X-MC-Unique: grAhexfyM1Sh_2OT5sOm8A-1 Received: by mail-wm1-f69.google.com with SMTP id m4so962288wmi.5 for ; Tue, 25 Feb 2020 06:50:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=GonAkwVlYf7mzVM7tAIusLAuxzdFzrvz8yw0t7Xi+OU=; b=TnK/Mun+MI3DR4IVA6x/PpCau3HOzwpc5DW9D8VqoJPU/URzWX14dUazG8wsgbrs8z f0eU3WA1VVvaLsCdVVF8s1Fq7XmhTSg4I18ktph3O04U3ojSa2sIJwYzitOfpfUDYlKR C3lGB1zXKuSBGd3C80XEVIMQLbTlPQu50HCEZ56IsYguuRIU9cQuV2StHzwvRsenFZTq Di/DQ3JhJ9FhnnOYwlXQnlIilhy+VfP5/jaofsUMIevAYFT3A+pDIugEnXrcD+fituAY t2pF4iN+Nc2MywkySct4YhRJycdM0qRU4ozUj5lJPQHQyq7iUatDPSX3+gAG9cfj853D kYVw== X-Gm-Message-State: APjAAAXDuzATW2LNVTn9UFqe45htq1xmwciwG6T7hksvdeM5G2N8aDnj Tuz392l1QafgivaH+P2ct9Fu7Y64wmj4IQTuqg+pxFIm+5uyGpleoiF2PnR5tEIUkAodJK0HRm9 gkV5GHYfMoDXRBKvYeSWU/f00Hxo= X-Received: by 2002:a7b:c10e:: with SMTP id w14mr5769981wmi.61.1582642209405; Tue, 25 Feb 2020 06:50:09 -0800 (PST) X-Google-Smtp-Source: APXvYqw+iIC5OCh2NpGwo5mA3TZ40WonwUZ+83HCqIBOQqR8BujCaubJru/+q3u54ZoDEBYYgL8adg== X-Received: by 2002:a7b:c10e:: with SMTP id w14mr5769960wmi.61.1582642209128; Tue, 25 Feb 2020 06:50:09 -0800 (PST) Received: from localhost.localdomain ([151.29.22.129]) by smtp.gmail.com with ESMTPSA id x132sm4502638wmg.0.2020.02.25.06.50.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Feb 2020 06:50:08 -0800 (PST) Date: Tue, 25 Feb 2020 15:50:06 +0100 From: Juri Lelli To: Sebastian Andrzej Siewior Cc: zanussi@kernel.org, LKML , linux-rt-users , Steven Rostedt , Thomas Gleixner , Carsten Emde , John Kacur , Daniel Wagner Subject: Re: [PATCH RT 03/25] sched/deadline: Ensure inactive_timer runs in hardirq context Message-ID: <20200225145006.GH26415@localhost.localdomain> References: <11a532007a600928e64e761722da7100e19a0c5f.1582320278.git.zanussi@kernel.org> <20200224083303.cdj27guxfxqkbyqo@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200224083303.cdj27guxfxqkbyqo@linutronix.de> Sender: linux-rt-users-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rt-users@vger.kernel.org Hi, On 24/02/20 09:33, Sebastian Andrzej Siewior wrote: > On 2020-02-21 15:24:31 [-0600], zanussi@kernel.org wrote: > > [ Upstream commit ba94e7aed7405c58251b1380e6e7d73aa8284b41 ] > > > > SCHED_DEADLINE inactive timer needs to run in hardirq context (as > > dl_task_timer already does) on PREEMPT_RT > > The message says "dl_task_timer already does" but this is not true for > v4.14 as it still runs in softirq context on RT. v4.19 has this either > via > https://lkml.kernel.org/r/20190731103715.4047-1-juri.lelli@redhat.com > > or the patch which got merged upstream. > > Juri, I guess we want this for v4.14, too? Indeed. v4.14 needs this as well. Thanks for noticing! Best, Juri