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[23.128.96.18]) by mx.google.com with ESMTP id c2si1911894edr.301.2020.08.27.09.39.23; Thu, 27 Aug 2020 09:39:45 -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; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=Z7SqmyJp; 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 S1726952AbgH0QiQ (ORCPT + 99 others); Thu, 27 Aug 2020 12:38:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726009AbgH0QiP (ORCPT ); Thu, 27 Aug 2020 12:38:15 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3F7FC061264; Thu, 27 Aug 2020 09:38:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=mDFQ2s0k9HxGt4psywikvnGRm5yDAwltz2heB0RkVKI=; b=Z7SqmyJpqfjBsisDmF/TVZ0Ht1 PjQ1Xp2mYa3WVDqVDdbWYK9Q/RuPJcdtHCS51QFY9DDNFjW5PeDsfcK/VNWLTBJaRW00YegfpXDzO ZiKkXdCZLM5IGJvs1z6HGrHNSfU4Ao6otK9UMbeukrfLcisI4hwSStaTYPHk/sJgXpHu7WHuNFnzw Lsk2Ln0mT6wZxRYIpm4E1UyHEvHxRym96GMP9JpYJeaefjBoCxPFI+HJPcZWTb+Lw5TCjlZpk86Hw rwa+X4aZpSAHHNUAMNU59Qs2CBfZmPG26JWVPaSL4dIgS9tO1mdjM7NApAgKnlMpEVUgufbuHhkSz hS1N3Psw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kBKuS-0002nE-BW; Thu, 27 Aug 2020 16:37:56 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 8FF8B3006D0; Thu, 27 Aug 2020 18:37:55 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 435622C42E940; Thu, 27 Aug 2020 18:37:55 +0200 (CEST) Date: Thu, 27 Aug 2020 18:37:55 +0200 From: peterz@infradead.org To: linux-kernel@vger.kernel.org, mhiramat@kernel.org Cc: Eddy_Wu@trendmicro.com, x86@kernel.org, davem@davemloft.net, rostedt@goodmis.org, naveen.n.rao@linux.ibm.com, anil.s.keshavamurthy@intel.com, linux-arch@vger.kernel.org, cameron@moodycamel.com, oleg@redhat.com, will@kernel.org, paulmck@kernel.org Subject: Re: [RFC][PATCH 6/7] freelist: Lock less freelist Message-ID: <20200827163755.GK1362448@hirez.programming.kicks-ass.net> References: <20200827161237.889877377@infradead.org> <20200827161754.535381269@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200827161754.535381269@infradead.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 27, 2020 at 06:12:43PM +0200, Peter Zijlstra wrote: > +struct freelist_node { > + atomic_t refs; > + struct freelist_node *next; > +}; Bah, the next patch relies on this structure to be ordered the other way around. Clearly writing code and listening to talks isn't ideal :-)