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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4CB7C28D13 for ; Sat, 20 Aug 2022 00:04:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244298AbiHTAEu (ORCPT ); Fri, 19 Aug 2022 20:04:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244099AbiHTAEt (ORCPT ); Fri, 19 Aug 2022 20:04:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95AD365565 for ; Fri, 19 Aug 2022 17:04:48 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 2F25661899 for ; Sat, 20 Aug 2022 00:04:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4417FC433B5; Sat, 20 Aug 2022 00:04:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660953887; bh=P9wsHjcl/2sRHasQrnLb0oyvcPBaGWkQzo6IvbncTnk=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=NWW5VORNOBBdExr8ySvtRA3bJ4+yTO9jo4VOhEcgiuCpEM/ktrTcVrKv2U89DhIuT wrRo3C7/K5+7Ycnpv4aGnzRZByhkb6F829Pyd3AbtPqAgJzWmEi1P6JqSQi1/dhBQb 4om2V/8N0x4x9e2+GxbImEoGqOyhZjlsASKC5sDTVK9tOza0nEfaeVDS6Jg0N11clU ytUMC0897bj9OCkHGT0bSOeZg8oWCbVaFKzsPEiq8KIuoKe57eBG2e8oFtjf/7sQA9 zpFZiKOAjNLyZ3BBjpq/ZV6ZndFnChGCF4wfEbOXKk93VT1DHezjmFIgD8NxJvfgnB kqk7f4GMJ9XOw== Date: Fri, 19 Aug 2022 17:04:46 -0700 From: Jakub Kicinski To: Kuniyuki Iwashima Cc: "David S. Miller" , Eric Dumazet , Paolo Abeni , Kuniyuki Iwashima , Subject: Re: [PATCH v3 net 05/17] ratelimit: Fix data-races in ___ratelimit(). Message-ID: <20220819170446.77eeb642@kernel.org> In-Reply-To: <20220818182653.38940-6-kuniyu@amazon.com> References: <20220818182653.38940-1-kuniyu@amazon.com> <20220818182653.38940-6-kuniyu@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, 18 Aug 2022 11:26:41 -0700 Kuniyuki Iwashima wrote: > + int interval = READ_ONCE(rs->interval); > + int burst = READ_ONCE(rs->burst); Also feels a little bit like papering over an issue if we read two values separately.