Received: by 2002:a05:6358:d09b:b0:dc:cd0c:909e with SMTP id jc27csp15647426rwb; Mon, 28 Nov 2022 14:21:59 -0800 (PST) X-Google-Smtp-Source: AA0mqf7Nsv3LNQD4nWsKpzmrn4HNHZUHsRylsmB8FsPEKQdpyutB527kV4ReDjqeTlq9TV1/oc1x X-Received: by 2002:a63:5850:0:b0:46e:f67c:c0a7 with SMTP id i16-20020a635850000000b0046ef67cc0a7mr47559580pgm.464.1669674119240; Mon, 28 Nov 2022 14:21:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1669674119; cv=none; d=google.com; s=arc-20160816; b=OmEnKwZWUSWrZauOm/LQGhEAZgi3kfmc7bNmxIwj/TSk53HEe2FMBotQ4fGcUvfsht CVon1M9QuWFd1ESC95DDoPnJoHfgjQsZ8+QYFoMshyPr9GLwNzbmypLnInCsnqqVGzV0 9sBPTrcJ6QYESDfNKW+4n50R9zUcfqETWOvdbiucTi54hOSBEmRhnVPKpwu+SpR8kHQz BkUDuUrkSelFbWpFnYF42yd0P0aWgX854k/Umjt4RBA0V8HQDYbgw45IIlKILXkZo4N/ WlQSnl/aVOF0YWJHqwYLrTgaRD0cSnAuF40haR9VHt94YlBFCI8PMf4X3fsasZoozs3d RYqw== 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:reply-to:message-id:subject:cc:to:from:date :dkim-signature; bh=dRf/bgQfaitQST/6WtN+qdJvZGyOoBqE5U1MYYQSXBM=; b=F9139vx6y+eegFFJjrotE4SsjR9Fpw3GpBFAw5BDLAIomNlgTwZsXwlhtFFztLk70R XJlRRFNbYZp0OPpPe/npLgwnK6YmYraX2j3l11J64GaK2ieWJDw6gYQgGfMFNxbsBJTj qkt0Pu/0NRGe9J+z4mqR/XCgD15k1pIKzcP0NQr41Ji0P6SygXjkdS3A1VPECRm8Jfrv 8nIBZxP9R2C2TqTjuSXQjnP6TMbEdIk9VyXVT2qMrr3jcPS7zCVBu27VFzq9Oya6JrdK XqZ/enlpDaLnEdvKroW9RBoFuKqMRkTxvUTB67Fy2fuyZlqHy/pQEpJx5w2Bj+wJk34f c1lA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=AMarH7AU; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id lk9-20020a17090b33c900b0020b27227d6dsi14977731pjb.6.2022.11.28.14.21.48; Mon, 28 Nov 2022 14:21:59 -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=@kernel.org header.s=k20201202 header.b=AMarH7AU; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233677AbiK1Vjf (ORCPT + 83 others); Mon, 28 Nov 2022 16:39:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233027AbiK1Vjd (ORCPT ); Mon, 28 Nov 2022 16:39:33 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8833B2B615; Mon, 28 Nov 2022 13:39:32 -0800 (PST) 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 1454861487; Mon, 28 Nov 2022 21:39:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BD8DC433D6; Mon, 28 Nov 2022 21:39:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669671571; bh=+iGaNGL/hq1R2stU0J1peDhuCuQTsMSXjSkHqLjkOQE=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=AMarH7AUrqIGM6fvRI2Bfh7pVKQVtteizXkhfgv/IB/teARzs/tnjTekU5l0LjQKy fqOwByPaIvN44OhCML+wFbZdMkWaMdYgZrImW3FtMP+tSx0hRlm9IIJflEdM+xc5yh bs5mXnJw6eAbDdz6xCpmmdpcv/IdPFTKDMPhDKaMSkVkthFwzQIka+ACjPqWTQgf12 6Fw+x9qicdsUZGBwyrjIDaY4sfDUor1ZCRveJa+owqCXsrhf83xnxelpyJ3WH/6Wqr acQNgs/Up1y5y9JAWjhSgxa2dlDZOjDxt5tsjv+zzLgBFbxx2/DhUaRTCKtWImEBF7 EBJPfHrHIQWDA== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id E7C6F5C0BA0; Mon, 28 Nov 2022 13:39:30 -0800 (PST) Date: Mon, 28 Nov 2022 13:39:30 -0800 From: "Paul E. McKenney" To: Bart Van Assche Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, Uladzislau Rezki , Joel Fernandes , "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org Subject: Re: [PATCH v2 rcu 12/16] scsi/scsi_error: Use call_rcu_flush() instead of call_rcu() Message-ID: <20221128213930.GK4001@paulmck-ThinkPad-P17-Gen-1> Reply-To: paulmck@kernel.org References: <20221122010408.GA3799268@paulmck-ThinkPad-P17-Gen-1> <20221122010421.3799681-12-paulmck@kernel.org> <3dbfae56-918f-d850-11b4-5c98e3baae05@acm.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3dbfae56-918f-d850-11b4-5c98e3baae05@acm.org> X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,RCVD_IN_DNSWL_HI,SPF_HELO_NONE, SPF_PASS 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 On Fri, Nov 25, 2022 at 04:11:26PM -0800, Bart Van Assche wrote: > On 11/21/22 17:04, Paul E. McKenney wrote: > > diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c > > index 6995c89792300..634672e67c81f 100644 > > --- a/drivers/scsi/scsi_error.c > > +++ b/drivers/scsi/scsi_error.c > > @@ -312,7 +312,7 @@ void scsi_eh_scmd_add(struct scsi_cmnd *scmd) > > * Ensure that all tasks observe the host state change before the > > * host_failed change. > > */ > > - call_rcu(&scmd->rcu, scsi_eh_inc_host_failed); > > + call_rcu_flush(&scmd->rcu, scsi_eh_inc_host_failed); > > } > > Reviewed-by: Bart Van Assche Thank you both, I will apply these on the next rebase. Thanx, Paul