Received: by 10.213.65.68 with SMTP id h4csp645054imn; Thu, 22 Mar 2018 05:42:03 -0700 (PDT) X-Google-Smtp-Source: AG47ELtmrH4mBxTBfzrlZR3Ag3Gmz3eFxqm13cpT+ngvCrpDT9C/uM6aP5K3SM55ejtz6ya5aWaS X-Received: by 2002:a17:902:b43:: with SMTP id 61-v6mr24632701plq.270.1521722523837; Thu, 22 Mar 2018 05:42:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521722523; cv=none; d=google.com; s=arc-20160816; b=QTf5WPX+XQxchVb5fAne6fwzPDqNnevqz9MK5K6sb/I1mK9X40KvZj7CVnf4IGW5vp thXTFS7hsLBBjoVIcEJKdpzco6VPWkQm/D9WlEOnfCd71yyDAB/e4aZZiW7T8K7VxqNy NFXwDgdllfrGM+SW6Ob6GEZPltZqGky+3f8k6smpZa6lix7Jr9dSx5AO3pVHFJC4K/jv p0wZbOxln8oMEL+2qn0JkwraqkYdZN+hnOhBaovTVGTyVR5UtzwN71He2R4gR77MB4U+ 8jC/3nAsts76s8/9YWvOcNuplGV/+4SoEjtr6qnDH7jUTvYdqgY1xyTqslXlGNQvVVd/ vpcA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date :arc-authentication-results; bh=Ccg281xR+ezMwj4NX2popZS3TTn+ltNd3qeAsi0zAPs=; b=UuKgVrE8GBqnzjbSeZAbtJ1U1i+aa4ijH0hoBET9cDVppYOF/RUKT4d0cOmHY2tTPO lj9B2CaVW/To2YiEffUvz1BHPdze+Sun3VSm45HZdxoDBSVh0KyLeHcJWcEitZmXw8BM DRRXnEeZ1qG4iE2oyK3K0oOOfnKBOwcQCR8ms9xEXq0HF3op2w2FM81oZaX0oikXCmkn RTjGRS1SYLD2gYmdaPBcUhhP4ucVXwxE5InaibUAAiHet0a8grjQJVwaUErbfw2vCbzn qD6ZtIXdH8zltByEEzSRJZOjDwXZX09NGSEDxYUtDZjLo2Kruh8XMlzeuGzcWgUl2p+f dyXw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f11si4450015pgn.420.2018.03.22.05.41.47; Thu, 22 Mar 2018 05:42:03 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754686AbeCVMgT (ORCPT + 99 others); Thu, 22 Mar 2018 08:36:19 -0400 Received: from tartarus.angband.pl ([89.206.35.136]:54204 "EHLO tartarus.angband.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751835AbeCVMgQ (ORCPT ); Thu, 22 Mar 2018 08:36:16 -0400 Received: from kilobyte by tartarus.angband.pl with local (Exim 4.89) (envelope-from ) id 1eyzRl-0005nY-3x; Thu, 22 Mar 2018 13:35:57 +0100 Date: Thu, 22 Mar 2018 13:35:57 +0100 From: Adam Borowski To: =?iso-8859-1?Q?Ren=E9?= Rebe Cc: Nick Terrell , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , linux-kernel@vger.kernel.org, x86@kernel.org, kernel-team@fb.com, Chris Mason , Julian Andres Klode , Andi Kleen Subject: Re: [RESEND PATCH v2 0/2] Add support for ZSTD-compressed kernel Message-ID: <20180322123557.4eu4huhldqn6bid6@angband.pl> References: <20180322012943.4145794-1-terrelln@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Junkbait: aaron@angband.pl, zzyx@angband.pl User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: kilobyte@angband.pl X-SA-Exim-Scanned: No (on tartarus.angband.pl); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 22, 2018 at 12:09:45PM +0100, René Rebe wrote: > Should this currently just work without any arch change on e.g. > ppc64, sparc64 et al.? I could do a test build and boot if that is > of any value, ... Initrd: no reason it wouldn't work, although for anything related to the boot process testing is a very good idea. If you test, you'd really want to apply that printk patch I posted, it's too easy to accidentally get a silent fallback to gzip or uncompressed. I wonder, perhaps such a printk could be permanently added, at a low message priority? Kernel itself: needs per-arch porting, but it's not advertised in kconfig outside x86 so that's not a problem. If you are knowledgeful about bootloaders on ppc64, sparc64, etc, such information would be great. Meow! -- ⢀⣴⠾⠻⢶⣦⠀ ⣾⠁⢠⠒⠀⣿⡁ A dumb species has no way to open a tuna can. ⢿⡄⠘⠷⠚⠋⠀ A smart species invents a can opener. ⠈⠳⣄⠀⠀⠀⠀ A master species delegates.