From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 5725A24A0A for ; Mon, 13 Nov 2023 20:23:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from elvis.franken.de (elvis.franken.de [193.175.24.41]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6653D10D0 for ; Mon, 13 Nov 2023 12:23:34 -0800 (PST) Received: from uucp by elvis.franken.de with local-rmail (Exim 3.36 #1) id 1r2dT1-0006KQ-00; Mon, 13 Nov 2023 21:23:31 +0100 Received: by alpha.franken.de (Postfix, from userid 1000) id AE1B0C0136; Mon, 13 Nov 2023 21:23:03 +0100 (CET) Date: Mon, 13 Nov 2023 21:23:03 +0100 From: Thomas Bogendoerfer To: Jiaxun Yang Cc: "linux-mips@vger.kernel.org" , kumba@gentoo.org Subject: Re: sgi/ip27 REPLICATE_KTEXT: Any user? Message-ID: References: Precedence: bulk X-Mailing-List: linux-mips@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: On Sat, Nov 11, 2023 at 12:07:25PM +0000, Jiaxun Yang wrote: > I'm fairly familiar with Loongson64 and I'll take care of it, for > IP27 I have limited knowledge on it, I'm confident with dealing > general NUMA stuff, but REPLICATE_KTEXT seems a little bit cursed > for me. > > I had a glance on it and I think this feature won't work on modern > kernel anyway. Nowadays, we have many fancy stuff like uasm and > static key which will modify kernel text at runtime. > > So I just wonder if there is any remaining user on this feature? yes, it's broken at the moment, but usefull for IP27 (and IP35) > Are we safe to drop it? no, please leave alone. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]