From patchwork Fri Mar 4 15:37:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 12769359 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A458EC433EF for ; Fri, 4 Mar 2022 15:46:18 +0000 (UTC) Received: from localhost ([::1]:46748 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nQA8H-0004zv-M8 for qemu-devel@archiver.kernel.org; Fri, 04 Mar 2022 10:46:17 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59988) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQA09-0007mP-KG for qemu-devel@nongnu.org; Fri, 04 Mar 2022 10:37:55 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:52869) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQA07-0007Xo-Fk for qemu-devel@nongnu.org; Fri, 04 Mar 2022 10:37:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646408270; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+QB5pDNvJfJIln2QM0DEQ0/qO60xkWpId2XZ6hw2ap4=; b=GffdJ38pbiXjSdNVxRbEa68MC3T+F/OpB9aPqm+jpETzJnrI+E1SYYMvueVqQH8dhM87kx xTRw2C22rD7obwEEdBe/jIfAQBv6fyN+6YUuJYQL01MC7lrc5ZqV69o+/dMoHANL/SWQ+6 7fhKR3ise4Wgn41THN9wtqvRuqtrJrY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-7-oaGoKvErN4aurJOCipFCSQ-1; Fri, 04 Mar 2022 10:37:47 -0500 X-MC-Unique: oaGoKvErN4aurJOCipFCSQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 378041091DA4; Fri, 4 Mar 2022 15:37:46 +0000 (UTC) Received: from localhost (unknown [10.39.193.145]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 117067BCCE; Fri, 4 Mar 2022 15:37:41 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PATCH 3/5] block/crypto: Reset updating_keys on perm failure Date: Fri, 4 Mar 2022 16:37:27 +0100 Message-Id: <20220304153729.711387-4-hreitz@redhat.com> In-Reply-To: <20220304153729.711387-1-hreitz@redhat.com> References: <20220304153729.711387-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Emanuele Giuseppe Esposito , Hanna Reitz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When the permissions could not be changed as would be necessary for updating the keys, reset updating_keys to false so block_crypto_child_perms() will not continue to try claiming these permissions. Signed-off-by: Hanna Reitz --- block/crypto.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/block/crypto.c b/block/crypto.c index 5225a68a54..9d5fecbef8 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -781,10 +781,16 @@ static int block_crypto_amend_prepare(BlockDriverState *bs, Error **errp) { BlockCrypto *crypto = bs->opaque; + int ret; /* apply for exclusive read/write permissions to the underlying file */ crypto->updating_keys = true; - return bdrv_child_refresh_perms(bs, bs->file, errp); + ret = bdrv_child_refresh_perms(bs, bs->file, errp); + if (ret < 0) { + /* Well, in this case we will not be updating any keys */ + crypto->updating_keys = false; + } + return ret; } static void