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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68E47C433DF for ; Fri, 16 Oct 2020 11:35:52 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 161342084C for ; Fri, 16 Oct 2020 11:35:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 161342084C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CCPGq2ZhGzDqNT for ; Fri, 16 Oct 2020 22:35:47 +1100 (AEDT) Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CCPC84N1kzDqcg for ; Fri, 16 Oct 2020 22:32:36 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 4CCPC72wlBz9sTq; Fri, 16 Oct 2020 22:32:35 +1100 (AEDT) From: Michael Ellerman To: mpe@ellerman.id.au, "Aneesh Kumar K.V" , linuxppc-dev@lists.ozlabs.org In-Reply-To: <20201014064813.109515-1-aneesh.kumar@linux.ibm.com> References: <20201014064813.109515-1-aneesh.kumar@linux.ibm.com> Subject: Re: [PATCH] powerpc/opal_elog: Handle multiple writes to ack attribute Message-Id: <160284791841.1794337.13323860774237941486.b4-ty@ellerman.id.au> Date: Fri, 16 Oct 2020 22:32:35 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Oliver O'Halloran , Mahesh Salgaonkar Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, 14 Oct 2020 12:18:13 +0530, Aneesh Kumar K.V wrote: > Even though we use self removing sysfs helper, we still need > to make sure we do the final kobject delete conditionally. > sysfs_remove_file_self() will handle parallel calls to remove > the sysfs attribute file and returns true only in the caller > that removed the attribute file. The other parallel callers > are returned false. Do the final kobject delete checking > the return value of sysfs_remove_file_self(). Applied to powerpc/fixes. [1/1] powerpc/opal_elog: Handle multiple writes to ack attribute https://git.kernel.org/powerpc/c/d4263b12a1a0e8816e021450be0765a1ad8bb53c cheers