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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 22-20020a170906025600b008b24caebd73si26787272ejl.225.2023.02.23.04.40.00; Thu, 23 Feb 2023 04:40:23 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=pNe33g49; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233850AbjBWMer (ORCPT + 99 others); Thu, 23 Feb 2023 07:34:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232770AbjBWMep (ORCPT ); Thu, 23 Feb 2023 07:34:45 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D49AE5328F for ; Thu, 23 Feb 2023 04:34:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=AcrbEGeFeStRBuJzvLjFTyBE4ZFyRLTI8fFgvXrJzTA=; b=pNe33g49dHtgLXgw6CmGJ8ppZu sP8siLGVX+JQ7/Rp0etV4R2EQRBcGli9lP9Ur72kRrt6tvuIi5/Hr8FLygE3OOnAnpqCLzADRxSgy C1iR/yLfSKOM01Ryj2jyYTkHTrp301FrdPAHZLMFyGl8AtcoerOdc4tCj2zfKNzxTBydcKbZP/LYN h/VREVkQw65K2NdTufvVBq1jVY+sEBP8TmF79ZPBGaiWwW4IaVZdB1Bi0gJf+hq92t8XJjoFhLLJM G6pwVdkViz7ZoYbUJJVKQVItg7gHym1u/wQATVY9UJPN67zWrPd84yW/TwoGeURriQwB3J/i5dYKt 3+GMDbag==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pVAo0-00EMIj-Ov; Thu, 23 Feb 2023 12:34:37 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id C99973001C3; Thu, 23 Feb 2023 13:34:35 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id AD2F02C539B20; Thu, 23 Feb 2023 13:34:35 +0100 (CET) Message-ID: <20230223122642.491637862@infradead.org> User-Agent: quilt/0.66 Date: Thu, 23 Feb 2023 13:26:42 +0100 From: Peter Zijlstra To: longman@redhat.com, mingo@redhat.com, will@kernel.org Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, boqun.feng@gmail.com Subject: [PATCH 0/6] locking/rwsem: Rework writer wakeup and handoff X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1758625554744757688?= X-GMAIL-MSGID: =?utf-8?q?1758625554744757688?= Hi, these here few patches boot but are otherwise very much untested. Please test. --- kernel/locking/lock_events_list.h | 1 + kernel/locking/rwsem.c | 430 +++++++++++++++++++------------------- 2 files changed, 213 insertions(+), 218 deletions(-)