From patchwork Wed Dec 9 16:44:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Levitsky X-Patchwork-Id: 11961893 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 0EE36C433FE for ; Wed, 9 Dec 2020 16:51:09 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 9895523BC7 for ; Wed, 9 Dec 2020 16:51:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9895523BC7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58256 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kn2gF-00079T-Iq for qemu-devel@archiver.kernel.org; Wed, 09 Dec 2020 11:51:07 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60212) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kn2aM-0002qq-Ej for qemu-devel@nongnu.org; Wed, 09 Dec 2020 11:45:02 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:34730) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kn2aG-0003K1-An for qemu-devel@nongnu.org; Wed, 09 Dec 2020 11:45:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607532295; 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=1MGdOSRuaY0jL7WFzslodoODfTjJHh5fpzO4HwJ4MUw=; b=YxN7oso8EOGGinmxmcRSCdTkKzKxCJTYCmgEFCgKoGnAy8v5DJwXX94XZbEHjbf+ruMoBA qgKYKCm6VrAtaoPupGW3tJZan2oBJj38WBRzhu2cLlW0Nb+w4j6rUyYxMkd4jbxLA871FV 9Nl2E01YZtyqsX5JSYHnm4tvKHiIZaw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-426-5lylo0e5NHC-_B0wGT1jOg-1; Wed, 09 Dec 2020 11:44:51 -0500 X-MC-Unique: 5lylo0e5NHC-_B0wGT1jOg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 78FAA1842141; Wed, 9 Dec 2020 16:44:50 +0000 (UTC) Received: from localhost.localdomain (unknown [10.35.206.133]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1A9FF1E5; Wed, 9 Dec 2020 16:44:47 +0000 (UTC) From: Maxim Levitsky To: qemu-devel@nongnu.org Subject: [PATCH v4 2/4] block: add bdrv_co_delete_file_noerr Date: Wed, 9 Dec 2020 18:44:39 +0200 Message-Id: <20201209164441.867945-3-mlevitsk@redhat.com> In-Reply-To: <20201209164441.867945-1-mlevitsk@redhat.com> References: <20201209164441.867945-1-mlevitsk@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mlevitsk@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=mlevitsk@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Maxim Levitsky , Alberto Garcia , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This function wraps bdrv_co_delete_file for the common case of removing a file, which was just created by format driver, on an error condition. It hides the -ENOTSUPP error, and reports all other errors otherwise. Signed-off-by: Maxim Levitsky Reviewed-by: Alberto Garcia --- block.c | 23 +++++++++++++++++++++++ include/block/block.h | 1 + 2 files changed, 24 insertions(+) diff --git a/block.c b/block.c index f1cedac362..57e6d9750a 100644 --- a/block.c +++ b/block.c @@ -704,6 +704,29 @@ int coroutine_fn bdrv_co_delete_file(BlockDriverState *bs, Error **errp) return ret; } +void coroutine_fn bdrv_co_delete_file_noerr(BlockDriverState *bs) +{ + Error *local_err = NULL; + + if (!bs) { + return; + } + + int ret = bdrv_co_delete_file(bs, &local_err); + /* + * ENOTSUP will happen if the block driver doesn't support + * the 'bdrv_co_delete_file' interface. This is a predictable + * scenario and shouldn't be reported back to the user. + */ + if (ret == -ENOTSUP) { + error_free(local_err); + } else if (ret < 0) { + error_report_err(local_err); + } +} + + + /** * Try to get @bs's logical and physical block size. * On success, store them in @bsz struct and return 0. diff --git a/include/block/block.h b/include/block/block.h index c9d7c58765..af03022723 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -428,6 +428,7 @@ int bdrv_freeze_backing_chain(BlockDriverState *bs, BlockDriverState *base, Error **errp); void bdrv_unfreeze_backing_chain(BlockDriverState *bs, BlockDriverState *base); int coroutine_fn bdrv_co_delete_file(BlockDriverState *bs, Error **errp); +void coroutine_fn bdrv_co_delete_file_noerr(BlockDriverState *bs); typedef struct BdrvCheckResult {