Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp1401783pxf; Fri, 9 Apr 2021 07:34:51 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyQDbIgxf0sV3DY7OLyE920FrFtbkNEPOMH3OJXKjt9oyCxETWxhO7hi6xhTSJc0CZouiFW X-Received: by 2002:a17:906:3295:: with SMTP id 21mr16513394ejw.88.1617978891686; Fri, 09 Apr 2021 07:34:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1617978891; cv=none; d=google.com; s=arc-20160816; b=EHOy1PZUIzOSXULdXFf62b4dVFMwzV1W7jmHYHmrdpX9dWTJldilydwt+cIInH4YZO LOozlnz0WilpkOy/zwRM4CW8A0yWwgF74XMbHnxDvlzic7m3CyqYz/o5DUDDjWS86r3k eE4T/Pd9kVDcmwgnxFiQPaafwBv79TAy84U8Symcsv9KnOS//yQIn2m4RDDxMcWFouTb fB/lyWplWdUAYqnZlop8acibnsLh63iUqtxHqLAfySwOqDtHMTPN3OQ8SzaH7Z9H4wJZ WZJRkCsri/0w6alGoHtBRxDicHO8gqY1h625gBF2kbz8Ljhl4iWGd3CFjZhcD89P4H1I LrTA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=ltLL773CZWiiuY+07KoyA/R7OZMQjdtmSXS12Mm4Hk4=; b=LdWa4sgdmlvV77eJmouBHSVwdGcFtjbWZD/NW99eL3yChfTqeZPA10NI4Onk+zdVxJ 4oOTPh51Y9lj/iWDGi3pX0rpdbYdUa3B40ULTMx4dHLvrEc7d7fJCoMe6z4ULjCnBn0O 0rz9SW6qD9mViYOZvlbwaz6uu7/Qi79UL1+Tu+vT9deNzksnvVH5NdaYhzQd9StBCzyF dDjQ4FtPHv47J1Q5YhXfgE/rdp2B8a4M5CTjZMNfDUZMdquYHDqnyNK1VjINvvrKubGe WM+MT2f4MLSg8Q0jQf18gE9RWs3meLW3tBKyEtTldk+k1o5oWdkCSdO8KT5SWyQAEHph 9GIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p25si2008477ejz.305.2021.04.09.07.34.28; Fri, 09 Apr 2021 07:34:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233568AbhDIOdg (ORCPT + 99 others); Fri, 9 Apr 2021 10:33:36 -0400 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:56089 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231946AbhDIOdf (ORCPT ); Fri, 9 Apr 2021 10:33:35 -0400 Received: from cwcc.thunk.org (pool-72-74-133-215.bstnma.fios.verizon.net [72.74.133.215]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 139EWmYC019758 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 9 Apr 2021 10:32:48 -0400 Received: by cwcc.thunk.org (Postfix, from userid 15806) id 0A5C315C3B12; Fri, 9 Apr 2021 10:32:48 -0400 (EDT) Date: Fri, 9 Apr 2021 10:32:47 -0400 From: "Theodore Ts'o" To: "Matthew Wilcox (Oracle)" Cc: neilb@suse.de, peterz@infradead.org, mingo@redhat.com, will@kernel.org, longman@redhat.com, boqun.feng@gmail.com, tglx@linutronix.de, bigeasy@linutronix.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH 03/17] bit_spinlock: Prepare for split_locks Message-ID: References: <20210409025131.4114078-1-willy@infradead.org> <20210409025131.4114078-4-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210409025131.4114078-4-willy@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 09, 2021 at 03:51:17AM +0100, Matthew Wilcox (Oracle) wrote: > Make bit_spin_lock() and variants variadic to help with the transition. > The split_lock parameter will become mandatory at the end of the series. > Also add bit_spin_lock_nested() and bit_spin_unlock_assign() which will > both be used by the rhashtable code later. > > Signed-off-by: Matthew Wilcox (Oracle) This changes the function signature for bit_spin_lock(), if I'm reading this correctly. Hence, this is going to break git bisectability; was this patch series separated out for easy of review, and you were planning on collapsing things into a single patch to preserve bisectability? - Ted