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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A87E3CD5BCA for ; Tue, 19 Sep 2023 14:32:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232804AbjISOc1 (ORCPT ); Tue, 19 Sep 2023 10:32:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232759AbjISOc0 (ORCPT ); Tue, 19 Sep 2023 10:32:26 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC2E6BC; Tue, 19 Sep 2023 07:32:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=SidCZEV6eW0lcJ6NuB/uLvR734BxaKgfVBoDR9i1ilY=; b=wU6JouyF8Bxm56RpaenERGdpUO uCvAVUpRAqLEsiOGlctL7ZupHDmJIFbEljv7BpsiWCt0P+Eu8m9up5lt1qMWnxNwnJbtaVWvn2FQO 4pKdpCBLaE5AaX6Gst2Xuv0aasi95ZnKa4+CkMPcsqW3PJEhR/eMlp/4usTSnSmznL5I2UfrU1dem V9TSusY7h9TQCeE1ORzWfmKqeJBq5CEAIc84YqLmNerMa9UNwMBCfOxHRGWc+rMCfeIV01jDcHqaB /apAzpnS4eTJSYIuKueYpJsctmmF6g8UbjSkd+Xp1I9U0O/06u6cqRSZD5goB0T09jgJOfd51cvIn 2UW3Y5Cw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qibll-0008Rn-TQ; Tue, 19 Sep 2023 14:32:05 +0000 Date: Tue, 19 Sep 2023 15:32:05 +0100 From: Matthew Wilcox To: John Paul Adrian Glaubitz Cc: Peter Zijlstra , Thomas Gleixner , Linus Torvalds , Ankur Arora , linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, mgorman@suse.de, rostedt@goodmis.org, jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, jgross@suse.com, andrew.cooper3@citrix.com, Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org, Richard Weinberger , Anton Ivanov , Johannes Berg , linux-um@lists.infradead.org, Brian Cain , linux-hexagon@vger.kernel.org, Richard Henderson , Ivan Kokshaysky , Matt Turner , linux-alpha@vger.kernel.org Subject: Re: Arches that don't support PREEMPT Message-ID: References: <20230912082606.GB35261@noisy.programming.kicks-ass.net> <87cyyfxd4k.ffs@tglx> <87led2wdj0.ffs@tglx> <0e69f7df80dc5878071deb0d80938138d19de1d1.camel@physik.fu-berlin.de> <20230919134218.GA39281@noisy.programming.kicks-ass.net> <20230919141627.GB39281@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org On Tue, Sep 19, 2023 at 04:24:48PM +0200, John Paul Adrian Glaubitz wrote: > If the conversion isn't hard, why is the first reflex the urge to remove an architecture > instead of offering advise how to get the conversion done? Because PREEMPT has been around since before 2005 (cc19ca86a023 created Kconfig.preempt and I don't need to go back further than that to make my point), and you haven't done the work yet. Clearly it takes the threat of removal to get some kind of motion.