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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 BED3CC433E0 for ; Mon, 1 Mar 2021 20:34:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8FAD664D90 for ; Mon, 1 Mar 2021 20:34:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235345AbhCAUdo (ORCPT ); Mon, 1 Mar 2021 15:33:44 -0500 Received: from mx2.suse.de ([195.135.220.15]:58352 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237307AbhCARIH (ORCPT ); Mon, 1 Mar 2021 12:08:07 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1614618440; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=NY6iPETVbQ0YAmOgbep9iwFhhRjHQcDXlRCehKUkjgA=; b=eSwzVuAOtwkgmRPk3+H5fL0ounOxpYttJelAWvlmkw4w6bMtueiQFmD68qxxbMCYJBY56H UC03GdFjLMB10gIxXEORAbZtTRtiK6D40vFwjpiMxrjuGUeQDkF0KQ2ALhtQBUgaJ8BEp3 r70KMN6BUNoh87qiJ4QwJW/7QjLw6jM= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D89F5AE05; Mon, 1 Mar 2021 17:07:19 +0000 (UTC) Date: Mon, 1 Mar 2021 18:07:19 +0100 From: Petr Mladek To: John Ogness Cc: Sergey Senozhatsky , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , linux-kernel@vger.kernel.org Subject: Re: [PATCH next v3 10/15] printk: add syslog_lock Message-ID: References: <20210225202438.28985-1-john.ogness@linutronix.de> <20210225202438.28985-11-john.ogness@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210225202438.28985-11-john.ogness@linutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 2021-02-25 21:24:33, John Ogness wrote: > The global variables @syslog_seq, @syslog_partial, @syslog_time > and write access to @clear_seq are protected by @logbuf_lock. > Once @logbuf_lock is removed, these variables will need their > own synchronization method. Introduce @syslog_lock for this > purpose. > > @syslog_lock is a raw_spin_lock for now. This simplifies the > transition to removing @logbuf_lock. Once @logbuf_lock and the > safe buffers are removed, @syslog_lock can change to spin_lock. > > Signed-off-by: John Ogness Reviewed-by: Petr Mladek Best Regards, Petr