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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,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 71927C433DB for ; Mon, 8 Mar 2021 12:12:40 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1D40564F5F for ; Mon, 8 Mar 2021 12:12:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D40564F5F Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=xenproject.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.94839.178656 (Exim 4.92) (envelope-from ) id 1lJEkS-0003Y3-35; Mon, 08 Mar 2021 12:12:32 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 94839.178656; Mon, 08 Mar 2021 12:12:32 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lJEkR-0003Xw-W7; Mon, 08 Mar 2021 12:12:31 +0000 Received: by outflank-mailman (input) for mailman id 94839; Mon, 08 Mar 2021 12:12:30 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lJEkQ-0003Xk-T8 for xen-devel@lists.xenproject.org; Mon, 08 Mar 2021 12:12:30 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lJEkQ-0003bZ-Qc for xen-devel@lists.xenproject.org; Mon, 08 Mar 2021 12:12:30 +0000 Received: from iwj (helo=mariner.uk.xensource.com) by xenbits.xenproject.org with local-bsmtp (Exim 4.92) (envelope-from ) id 1lJEkQ-0004cI-NG for xen-devel@lists.xenproject.org; Mon, 08 Mar 2021 12:12:30 +0000 Received: from iwj by mariner.uk.xensource.com with local (Exim 4.89) (envelope-from ) id 1lJEkN-0008Q2-DB; Mon, 08 Mar 2021 12:12:27 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xenproject.org; s=20200302mail; h=References:In-Reply-To:Subject:Cc:To:Date :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:From; bh=8wCi3Dftd3FaukUhiK2OHo7Bw4PW8XiwJNUVoRyTk9A=; b=u4EueEr4WOPItrj1PTx24dKNuP WG2MENYxkW5n81YTBbPZfjtVuzAfJz9hFNlYdQmhitYL87xQPYm06H4cn6A7kiqifL6ZXInNjnScT U9wc6sEOd1jHIvR5b9bC/YSnlm1n/jbMd7khRCQsUUpmd9BIcon+GEVWckEsLtJ1Gr8g=; From: Ian Jackson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <24646.5291.124853.270432@mariner.uk.xensource.com> Date: Mon, 8 Mar 2021 12:12:27 +0000 To: Jan Beulich Cc: "xen-devel\@lists.xenproject.org" , Andrew Cooper , Wei Liu , Roger Pau =?iso-8859-1?Q?Monn=E9?= Subject: Re: [PATCH 1/2][4.15?] tools/x86: don't rebuild cpuid-autogen.h every time In-Reply-To: <78259adb-89b1-06a6-c1f4-c0659134e309@suse.com> References: <336aaf51-f163-8ee7-d8ee-297f6f3052fd@suse.com> <24645.62832.737310.550811@mariner.uk.xensource.com> <2857440d-058f-5c85-32d3-87e2fe65bb9a@suse.com> <24646.1454.55437.250075@mariner.uk.xensource.com> <78259adb-89b1-06a6-c1f4-c0659134e309@suse.com> X-Mailer: VM 8.2.0b under 24.5.1 (i686-pc-linux-gnu) Jan Beulich writes ("Re: [PATCH 1/2][4.15?] tools/x86: don't rebuild cpuid-autogen.h every time"): > Possibly, but it may end up being more complex: We want to only > retain files of specific names from a single dir. I don't think > this is as straightforward to express in a find rune. Of course > I'll be fine whichever way the bug gets fixed, but I'm afraid I > don't feel convinced I want to put time into trying the alternative > you suggest. If otoh you wanted to try out yours and it turned out > equivalent or better, I wouldn't mind at all. Untested, but I think something like this should DTRT find xen ! -type d ! -path 'xen/lib/x86/*-autogen.h' -print0 | xargs -0r rm -- Since my background is GNU utilities, I checked the FreeBSD manpages for find, xargs and rm. They support these options. This will leave the entire directory structure but I think that is fine. The xen-dir target uses mkdir -p and should there be any stale directories (eg due to switching branches or whatever) they wouldn't be a problem. Ian.