From patchwork Tue Apr 30 15:42:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 10923889 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3BC1714DB for ; Tue, 30 Apr 2019 15:54:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2716428450 for ; Tue, 30 Apr 2019 15:54:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 190B228864; Tue, 30 Apr 2019 15:54:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A585B28450 for ; Tue, 30 Apr 2019 15:54:45 +0000 (UTC) Received: from localhost ([127.0.0.1]:48977 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hLV5g-0000Xh-S9 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 30 Apr 2019 11:54:44 -0400 Received: from eggs.gnu.org ([209.51.188.92]:48701) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hLUup-000807-O2 for qemu-devel@nongnu.org; Tue, 30 Apr 2019 11:43:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hLUun-00023g-8Q for qemu-devel@nongnu.org; Tue, 30 Apr 2019 11:43:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45850) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hLUuX-0001qU-Hn; Tue, 30 Apr 2019 11:43:15 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BC0755D608; Tue, 30 Apr 2019 15:43:12 +0000 (UTC) Received: from linux.fritz.box.com (unknown [10.36.118.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id 999DB17106; Tue, 30 Apr 2019 15:43:10 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Tue, 30 Apr 2019 17:42:27 +0200 Message-Id: <20190430154244.30083-11-kwolf@redhat.com> In-Reply-To: <20190430154244.30083-1-kwolf@redhat.com> References: <20190430154244.30083-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 30 Apr 2019 15:43:12 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 10/27] qcow2: Add errp to preallocate_co() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We'll add a bdrv_co_truncate() call in the next patch which can return an Error that we don't want to discard. So add an errp parameter to preallocate_co(). Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf Reviewed-by: Eric Blake --- block/qcow2.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/block/qcow2.c b/block/qcow2.c index dfac74c264..b4f9f5a240 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2721,7 +2721,7 @@ static int qcow2_set_up_encryption(BlockDriverState *bs, * Returns: 0 on success, -errno on failure. */ static int coroutine_fn preallocate_co(BlockDriverState *bs, uint64_t offset, - uint64_t new_length) + uint64_t new_length, Error **errp) { BDRVQcow2State *s = bs->opaque; uint64_t bytes; @@ -2738,6 +2738,7 @@ static int coroutine_fn preallocate_co(BlockDriverState *bs, uint64_t offset, ret = qcow2_alloc_cluster_offset(bs, offset, &cur_bytes, &host_offset, &meta); if (ret < 0) { + error_setg_errno(errp, -ret, "Allocating clusters failed"); return ret; } @@ -2746,6 +2747,7 @@ static int coroutine_fn preallocate_co(BlockDriverState *bs, uint64_t offset, ret = qcow2_alloc_cluster_link_l2(bs, meta); if (ret < 0) { + error_setg_errno(errp, -ret, "Mapping clusters failed"); qcow2_free_any_clusters(bs, meta->alloc_offset, meta->nb_clusters, QCOW2_DISCARD_NEVER); return ret; @@ -2775,6 +2777,7 @@ static int coroutine_fn preallocate_co(BlockDriverState *bs, uint64_t offset, ret = bdrv_pwrite(s->data_file, (host_offset + cur_bytes) - 1, &data, 1); if (ret < 0) { + error_setg_errno(errp, -ret, "Writing to EOF failed"); return ret; } } @@ -3748,9 +3751,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset, break; case PREALLOC_MODE_METADATA: - ret = preallocate_co(bs, old_length, offset); + ret = preallocate_co(bs, old_length, offset, errp); if (ret < 0) { - error_setg_errno(errp, -ret, "Preallocation failed"); goto fail; } break; @@ -3766,9 +3768,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset, /* With a data file, preallocation means just allocating the metadata * and forwarding the truncate request to the data file */ if (has_data_file(bs)) { - ret = preallocate_co(bs, old_length, offset); + ret = preallocate_co(bs, old_length, offset, errp); if (ret < 0) { - error_setg_errno(errp, -ret, "Preallocation failed"); goto fail; } break;