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=unavailable 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 14296C43387 for ; Fri, 11 Jan 2019 15:05:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D94BF2084C for ; Fri, 11 Jan 2019 15:05:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547219131; bh=ven6ux7xPgrmAY0YOkjtsLZUnhxAM9scYAPdc8o/AOE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RSU4WRrtuQF36pNmA8/SL0rES/kunbJBZEM1VZxFxyy7ZzV2blx8IGO8iTInoeJqp nbwIzcj5dJTAuzHNm5LAIOOELG+CqazJiHVmVGnS5MXCeP3dRg4LxiBQu0cBNKet35 e8Cy66FczuXPXypDGip3yWlyFNX6nPte1sr1hWnI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388782AbfAKO3l (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: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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)