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=-10.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 A2AADC43387 for ; Fri, 11 Jan 2019 14:29:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 741522177B for ; Fri, 11 Jan 2019 14:29:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547216982; bh=ven6ux7xPgrmAY0YOkjtsLZUnhxAM9scYAPdc8o/AOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=THh5gXR0J+nwOfhPEz/STa/z2QECRvho31wQbmThDz8wg0drQBI6KpTrWEWbGJizn YVLAAzq7HSixTPAKbDVrPA4Rt+vnXlSCQaBtbrKycjx8oy6adtlJwSJpFhH8ziTjSS Nyh1rSmQ7y6+qW2Levlyq+rAUqciwnMGgSVpcCRQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388794AbfAKO3l (ORCPT ); Fri, 11 Jan 2019 09:29:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:48756 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388780AbfAKO3k (ORCPT ); Fri, 11 Jan 2019 09:29:40 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CEE7721841; Fri, 11 Jan 2019 14:29:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547216980; bh=ven6ux7xPgrmAY0YOkjtsLZUnhxAM9scYAPdc8o/AOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zT+yz7RR4jVPxoRrarfSybcGegh+MI78JiaGyUZDpj08NyRrPfo/m2RwMAYjAbgH9 ma6/G8icYmTxvAn8gpk4rchAefQsUG7qk2Bdy4fqTUxYtktqKumeCb5thRDspVFr+g J/hp3aqr5B8Thg4eZSDfBfhcoAxA2/L3XRVzEEoI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Yan, Zheng" , Ilya Dryomov Subject: [PATCH 4.9 59/63] ceph: dont update importing caps mseq when handing cap export Date: Fri, 11 Jan 2019 15:15:02 +0100 Message-Id: <20190111131055.234170081@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190111131046.387528003@linuxfoundation.org> References: <20190111131046.387528003@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yan, Zheng commit 3c1392d4c49962a31874af14ae9ff289cb2b3851 upstream. Updating mseq makes client think importer mds has accepted all prior cap messages and importer mds knows what caps client wants. Actually some cap messages may have been dropped because of mseq mismatch. If mseq is left untouched, importing cap's mds_wanted later will get reset by cap import message. Cc: stable@vger.kernel.org Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov Signed-off-by: Greg Kroah-Hartman --- fs/ceph/caps.c | 1 - 1 file changed, 1 deletion(-) --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3343,7 +3343,6 @@ retry: tcap->cap_id = t_cap_id; tcap->seq = t_seq - 1; tcap->issue_seq = t_seq - 1; - tcap->mseq = t_mseq; tcap->issued |= issued; tcap->implemented |= issued; if (cap == ci->i_auth_cap)