From patchwork Wed May 17 05:24:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 13244224 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 AF1BBC77B75 for ; Wed, 17 May 2023 05:25:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232260AbjEQFZD (ORCPT ); Wed, 17 May 2023 01:25:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40336 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231744AbjEQFZA (ORCPT ); Wed, 17 May 2023 01:25:00 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D75840ED for ; Tue, 16 May 2023 22:24:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1684301060; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=jw9brB41FDXz2jgQEbr8oqsvxh/JrmUeFZGSqLXLrYE=; b=WqjPdDY2111/0QXw4Ebbo9iszSIq3966N9wEikWKIp4340OVvsJ2uIAHQrnB9KkINqNrJ/ TxETHQKj/zBsvHc3HgrrlJBG5tpLh6gppnrcTNZCG/FvkNpKUYOGaLu9ghSt6pZmGzw8jc w7pvDYqNRrxWFNd7ETHDguSvtG9UfwA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-625-YYpC63RgMhCNkxUfHHUVFQ-1; Wed, 17 May 2023 01:24:19 -0400 X-MC-Unique: YYpC63RgMhCNkxUfHHUVFQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7E25B2A59544; Wed, 17 May 2023 05:24:18 +0000 (UTC) Received: from li-a71a4dcc-35d1-11b2-a85c-951838863c8d.ibm.com.com (ovpn-12-110.pek2.redhat.com [10.72.12.110]) by smtp.corp.redhat.com (Postfix) with ESMTP id CF80E14171C0; Wed, 17 May 2023 05:24:13 +0000 (UTC) From: xiubli@redhat.com To: idryomov@gmail.com, ceph-devel@vger.kernel.org Cc: jlayton@kernel.org, vshankar@redhat.com, Xiubo Li , stable@vger.kernel.org, Frank Schilder Subject: [PATCH] ceph: force updating the msg pointer in non-split case Date: Wed, 17 May 2023 13:24:04 +0800 Message-Id: <20230517052404.99904-1-xiubli@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org From: Xiubo Li When the MClientSnap reqeust's op is not CEPH_SNAP_OP_SPLIT the request may still contain a list of 'split_realms', and we need to skip it anyway. Or it will be parsed as a corrupt snaptrace. Cc: stable@vger.kernel.org Cc: Frank Schilder Reported-by: Frank Schilder URL: https://tracker.ceph.com/issues/61200 Signed-off-by: Xiubo Li --- fs/ceph/snap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c index 0e59e95a96d9..d95dfe16b624 100644 --- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -1114,6 +1114,9 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc, continue; adjust_snap_realm_parent(mdsc, child, realm->ino); } + } else { + p += sizeof(u64) * num_split_inos; + p += sizeof(u64) * num_split_realms; } /*