From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E18A6373BF5; Tue, 3 Mar 2026 16:05:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772553950; cv=none; b=Z1WcPHyi0YnB4uH0UYYVMKHHi9fkWy7X2nTDTZ7I0+3owzIzVrp5fAavyfDywIgmrZ65FlFyttKY0rawEyplrvPR1wkh41yLVO7t85KA29cH4jQvsso2JQRk3tZx/PEFbRLR0fc/Gq0oYh9dhXa8D6R027utGVxzgR9WoS63zqQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772553950; c=relaxed/simple; bh=LiIn5md/RWD4r6G62DIU3V7G/0dft2GTXxPIWZIc+zc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aebaWFJ/lYIazelASV5POyCIZaYQ/0ZA/BOgaDyC09stvBP21unb1/WTtjPDPm/H+1HRrUGu5bMGoGU9mSzHtHLzL8ibOKZTpX4KwM7zYXgmjwcM9ZUK+k2V+yNTofPofjT97sn909WrYDPFlst2hy4Vj2DBXwyh8ES0uetdCM8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id BF4F068BEB; Tue, 3 Mar 2026 17:05:46 +0100 (CET) Date: Tue, 3 Mar 2026 17:05:46 +0100 From: Christoph Hellwig To: Peter Zijlstra Cc: Eric Biggers , Christoph Hellwig , Andrew Morton , Richard Henderson , Matt Turner , Magnus Lindholm , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "David S. Miller" , Andreas Larsson , Richard Weinberger , Anton Ivanov , Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: [PATCH 18/25] x86: move the XOR code to lib/raid/ Message-ID: <20260303160546.GF7021@lst.de> References: <20260226151106.144735-1-hch@lst.de> <20260226151106.144735-19-hch@lst.de> <20260227143016.GH1282955@noisy.programming.kicks-ass.net> <20260227235529.GA31321@quark> <20260228103117.GK1282955@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260228103117.GK1282955@noisy.programming.kicks-ass.net> User-Agent: Mutt/1.5.17 (2007-11-01) On Sat, Feb 28, 2026 at 11:31:17AM +0100, Peter Zijlstra wrote: > Hmm, I suppose. Its just weird that we now have to look in both > arch/$foo and lib/*/$foo/ to find all arch code. We've had instance of that for a long time, e.g. lib/raid6/ > And I don't suppose symlinks would make it better? Ugg, just purely from the organizaton perspective it would make things a lot worse. I'm also not sure how well git copes with symlinks.