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=-2.2 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, USER_AGENT_MUTT 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 A5311C43334 for ; Mon, 27 Aug 2018 11:29:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6170C208B4 for ; Mon, 27 Aug 2018 11:29:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="SHFhvC4W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6170C208B4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727433AbeH0PPT (ORCPT ); Mon, 27 Aug 2018 11:15:19 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48300 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727174AbeH0PPS (ORCPT ); Mon, 27 Aug 2018 11:15:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=aktKN+s5uQ2D3o2z3Qfms71MdZE+ETWHcagtvbilydM=; b=SHFhvC4WhhNyVmkzQ6QCX+tbO 9eGW/yMkHjfiqNnfuUTUAsC3yyTsKw9ZjN4fN0Hr/rmz6ZWFlbYmxY6lbeTghhUTEZcnfwKfVHbJP aEeGXn2+iOGMcrJLlLLk9a2mwcBXX7WLl5Rx6R80D0IJkH0Q+OLrtmxRISgKIhtEeohHsWYDOODbC pxxQC9mH7FtE08WJqlvHOxh0ohzTL4tHdcUoGGYkzYZH6tgsgGrX/ZhRImB4F3Bz2w65Gq/jWNWpX w1j8EyTtwwtii5NH1LRboCJ6xYRFwUpxyhuhdJO7ZIY9svTBcLdkh/wccC38MJBuw7GWv1PLfEYfH FYsUd6HFw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fuFhF-00073i-Ta; Mon, 27 Aug 2018 11:28:38 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E427C2024EFCD; Mon, 27 Aug 2018 13:28:35 +0200 (CEST) Date: Mon, 27 Aug 2018 13:28:35 +0200 From: Peter Zijlstra To: Christoph Hellwig Cc: Nicholas Piggin , Will Deacon , Linus Torvalds , Benjamin Herrenschmidt , Andrew Lutomirski , the arch/x86 maintainers , Borislav Petkov , Rik van Riel , Jann Horn , Adin Scannell , Dave Hansen , Linux Kernel Mailing List , linux-mm , David Miller , Martin Schwidefsky , Michael Ellerman , Tony Luck , Fenghua Yu , linux-ia64@vger.kernel.org Subject: Re: removig ia64, was: Re: [PATCH 3/4] mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE Message-ID: <20180827112835.GC24124@hirez.programming.kicks-ass.net> References: <776104d4c8e4fc680004d69e3a4c2594b638b6d1.camel@au1.ibm.com> <20180823133958.GA1496@brain-police> <20180824084717.GK24124@hirez.programming.kicks-ass.net> <20180824113214.GK24142@hirez.programming.kicks-ass.net> <20180824113953.GL24142@hirez.programming.kicks-ass.net> <20180827150008.13bce08f@roar.ozlabs.ibm.com> <20180827074701.GW24124@hirez.programming.kicks-ass.net> <20180827085708.GA27172@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180827085708.GA27172@infradead.org> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 27, 2018 at 01:57:08AM -0700, Christoph Hellwig wrote: > On Mon, Aug 27, 2018 at 09:47:01AM +0200, Peter Zijlstra wrote: > > sh is trivial, arm seems doable, with a bit of luck we can do 'rm -rf > > arch/ia64' leaving us with s390. > > Is removing ia64 a serious plan? I 'joked' about it a while ago on IRC, and aegl reacted that it might not be entirely unreasonable. > It is the cause for a fair share of > oddities in dma lang, and I did not have much luck getting maintainer > replies lately, but I didn't know of a plan to get rid of it. > > What is the state of people still using ia64 mainline kernels vs just > old distros in the still existing machines? Both arjan and aegl said that the vast majority of people still running ia64 machines run old distros.