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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham 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 EE0E1C433DF for ; Fri, 10 Jul 2020 08:28:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D4593207DF for ; Fri, 10 Jul 2020 08:28:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728112AbgGJI2f (ORCPT ); Fri, 10 Jul 2020 04:28:35 -0400 Received: from mx2.suse.de ([195.135.220.15]:50322 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727861AbgGJI2f (ORCPT ); Fri, 10 Jul 2020 04:28:35 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 45237AB7A; Fri, 10 Jul 2020 08:28:34 +0000 (UTC) Date: Fri, 10 Jul 2020 10:28:33 +0200 From: Petr Mladek To: John Ogness Cc: Peter Zijlstra , Sergey Senozhatsky , Sergey Senozhatsky , Steven Rostedt , Linus Torvalds , Greg Kroah-Hartman , Andrea Parri , Thomas Gleixner , Paul McKenney , kexec@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 0/4] printk: replace ringbuffer Message-ID: <20200710082833.GM4751@alley> References: <20200709132344.760-1-john.ogness@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200709132344.760-1-john.ogness@linutronix.de> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 2020-07-09 15:29:40, John Ogness wrote: > Hello, > > Here is a v5 for the first series to rework the printk > subsystem. The v4 is here [0]. This first series > only replaces the existing ringbuffer implementation. No locking > is removed. The semantics/behavior of printk are kept the same > except for a minor optimization that is reverted (patch 3). > > John Ogness (4): > crash: add VMCOREINFO macro to define offset in a struct declared by > typedef > printk: add lockless ringbuffer > Revert "printk: lock/unlock console only for new logbuf entries" > printk: use the lockless ringbuffer The patchset is committed in printk/linux.git, branch printk-rework. I did not add any target kernel version into the topic branch name. We could use it for the entire rework. The pieces would go into mainline when we and linux-next are happy. Best Regards, Petr