From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751856AbeEDRRc convert rfc822-to-8bit (ORCPT ); Fri, 4 May 2018 13:17:32 -0400 Received: from out03.mta.xmission.com ([166.70.13.233]:41814 "EHLO out03.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751563AbeEDRRa (ORCPT ); Fri, 4 May 2018 13:17:30 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, "Paul E . McKenney" , Anna-Maria Gleixner References: <20180504144014.5378-1-bigeasy@linutronix.de> <87fu37e4rn.fsf@xmission.com> <20180504170459.624e7vkro5fn2bgw@linutronix.de> Date: Fri, 04 May 2018 12:17:20 -0500 In-Reply-To: <20180504170459.624e7vkro5fn2bgw@linutronix.de> (Sebastian Andrzej Siewior's message of "Fri, 4 May 2018 19:04:59 +0200") Message-ID: <876043e3xb.fsf@xmission.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-XM-SPF: eid=1fEeKl-0000Tk-Ls;;;mid=<876043e3xb.fsf@xmission.com>;;;hst=in01.mta.xmission.com;;;ip=97.119.174.25;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1+Hjuk68r2ezMLUBkfqV18GwM640o37nGQ= X-SA-Exim-Connect-IP: 97.119.174.25 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.7 XMSubLong Long Subject * 0.0 T_TM2_M_HEADER_IN_MSG BODY: No description available. * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.4808] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa07 1397; Body=1 Fuz1=1 Fuz2=1] X-Spam-DCC: XMission; sa07 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Sebastian Andrzej Siewior X-Spam-Relay-Country: X-Spam-Timing: total 137 ms - load_scoreonly_sql: 0.04 (0.0%), signal_user_changed: 2.4 (1.8%), b_tie_ro: 1.67 (1.2%), parse: 0.74 (0.5%), extract_message_metadata: 9 (6.5%), get_uri_detail_list: 0.78 (0.6%), tests_pri_-1000: 5 (3.9%), tests_pri_-950: 1.08 (0.8%), tests_pri_-900: 0.91 (0.7%), tests_pri_-400: 17 (12.2%), check_bayes: 16 (11.5%), b_tokenize: 4.3 (3.1%), b_tok_get_all: 4.9 (3.6%), b_comp_prob: 1.38 (1.0%), b_tok_touch_all: 3.7 (2.7%), b_finish: 0.52 (0.4%), tests_pri_0: 95 (69.3%), check_dkim_signature: 0.43 (0.3%), check_dkim_adsp: 3.7 (2.7%), tests_pri_500: 3.4 (2.5%), rewrite_mail: 0.00 (0.0%) Subject: Re: [PATCH] kernel/signal: Remove no longer required irqsave/restore X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sebastian Andrzej Siewior writes: > On 2018-05-04 11:59:08 [-0500], Eric W. Biederman wrote: >> Sebastian Andrzej Siewior writes: >> > From: Anna-Maria Gleixner > … >> > This long-term fix has been made in commit 4abf91047cf ("rtmutex: Make > >> > wait_lock irq safe") for different reason. >> >> Which tree has this change been made in? I am not finding the commit >> you mention above in Linus's tree. > > I'm sorry, it should have been commit b4abf91047cf ("rtmutex: Make > wait_lock irq safe"). Can you fix that in your patch description and can you also up the description of rcu_read_unlock? If we don't need to jump through hoops it looks very reasonable to remove this unnecessary logic. But we should fix the description in rcu_read_unlock that still says we need these hoops. Eric