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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 5A403C43332 for ; Fri, 20 Mar 2020 00:01:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2EE532075E for ; Fri, 20 Mar 2020 00:01:22 +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="kiLnA4+H" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727252AbgCTABN (ORCPT ); Thu, 19 Mar 2020 20:01:13 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:37320 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727238AbgCTABL (ORCPT ); Thu, 19 Mar 2020 20:01:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Sender:Reply-To:Content-ID:Content-Description; bh=vHZuTkIraH0j18C0yesq0h37iJWXExpW0+pRP9wHAFQ=; b=kiLnA4+HBazSxcmaF2vYSeDjTi GZySNj/qYjY7qWPGZkmvHOClubyAs6vb7qNyQfZbboMzJvAC4SHO+rElmWzJ0jHKOLMyU89vHKXK/ n1M8PZ7nzbZS/ryrjge0YuJsfT2QgYPpt2RAbDeongoVB9W/tMUNAm/+H2dBMRuDAuWrU0PwbnQ75 54EFHJNVY0SnoWPPNthdT3GTBbdGU8DxgXaRaLjrQZFGUO+ooZjTCdCB5e4iC3O2gyhwvHlCijgXg qdZtqnhJd8ufbtliHGhktsMMJQdKUHbLmcPLdZ0UbErD8gWdNNPnllI27n2u1y0WLcmNSdyDJUoWb Kec+VEjg==; Received: from 99-123-7-132.lightspeed.sntcca.sbcglobal.net ([99.123.7.132] helo=[192.168.1.71]) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jF562-0000eU-0Q; Fri, 20 Mar 2020 00:01:06 +0000 Subject: Re: [patch V2 07/15] powerpc/ps3: Convert half completion to rcuwait To: Sebastian Andrzej Siewior , Christoph Hellwig , Peter Zijlstra , Thomas Gleixner Cc: linux-usb@vger.kernel.org, linux-pci@vger.kernel.org, Oleg Nesterov , Joel Fernandes , Will Deacon , Davidlohr Bueso , "Paul E . McKenney" , Logan Gunthorpe , Ingo Molnar , Linus Torvalds , Arnd Bergmann , Steven Rostedt , Bjorn Helgaas , Kurt Schwemmer , Kalle Valo , Felipe Balbi , Greg Kroah-Hartman , Randy Dunlap , linux-wireless@vger.kernel.org, LKML , netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David S. Miller" References: <20200318204302.693307984@linutronix.de> <20200318204408.102694393@linutronix.de> <20200319100459.GA18506@infradead.org> <20200319102613.hbwax7zrrvgcde4x@linutronix.de> From: Geoff Levand Message-ID: Date: Thu, 19 Mar 2020 17:01:01 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200319102613.hbwax7zrrvgcde4x@linutronix.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Hi, On 3/19/20 3:26 AM, Sebastian Andrzej Siewior wrote: > On 2020-03-19 03:04:59 [-0700], Christoph Hellwig wrote: >> But I wonder how alive the whole PS3 support is to start with.. > > OtherOS can only be used on "old" PS3 which do not have have their > firmware upgraded past version 3.21, released April 1, 2010 [0]. > It was not possible to install OtherOS on PS3-slim and I don't remember > if it was a successor or a budget version (but it had lower power > consumption as per my memory). > *I* remember from back then that a few universities bought quite a few > of them and used them as a computation cluster. However, whatever broke > over the last 10 years is broken. > > [0] https://en.wikipedia.org/wiki/OtherOS There are still PS3-Linux users out there. They generally use firmware and other tools available through the 'hacker' communities that allow Linux to be run on more than just the 'officially supported' platforms. Anyway, the change to use rcuwait seems fine if that's needed for the completion re-work. I'll try to do some testing with the patch set next week. -Geoff