From nobody Wed Apr 16 12:22:21 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1544623604556751.5311614931236; Wed, 12 Dec 2018 06:06:44 -0800 (PST) Received: from localhost ([::1]:45189 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gX59v-0008RP-AU for importer@patchew.org; Wed, 12 Dec 2018 09:06:43 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46675) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gX4ZB-0003PF-FG for qemu-devel@nongnu.org; Wed, 12 Dec 2018 08:28:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gX4ZA-0001iJ-Ed for qemu-devel@nongnu.org; Wed, 12 Dec 2018 08:28:45 -0500 Received: from mx1.redhat.com ([209.132.183.28]:50828) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gX4Z6-0001eW-Hc; Wed, 12 Dec 2018 08:28:40 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D2653307D861; Wed, 12 Dec 2018 13:28:39 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-117-245.ams2.redhat.com [10.36.117.245]) by smtp.corp.redhat.com (Postfix) with ESMTP id C090860C44; Wed, 12 Dec 2018 13:28:38 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Wed, 12 Dec 2018 14:27:24 +0100 Message-Id: <20181212132735.16080-31-kwolf@redhat.com> In-Reply-To: <20181212132735.16080-1-kwolf@redhat.com> References: <20181212132735.16080-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Wed, 12 Dec 2018 13:28:39 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 30/41] block: Use bdrv_reopen_set_read_only() in stream_start/complete() 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, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Alberto Garcia This patch replaces the bdrv_reopen() calls that set and remove the BDRV_O_RDWR flag with the new bdrv_reopen_set_read_only() function. Signed-off-by: Alberto Garcia Reviewed-by: Max Reitz Signed-off-by: Kevin Wolf --- block/stream.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/block/stream.c b/block/stream.c index 81a7ec8ece..7a49ac0992 100644 --- a/block/stream.c +++ b/block/stream.c @@ -34,7 +34,7 @@ typedef struct StreamBlockJob { BlockDriverState *base; BlockdevOnError on_error; char *backing_file_str; - int bs_flags; + bool bs_read_only; } StreamBlockJob; =20 static int coroutine_fn stream_populate(BlockBackend *blk, @@ -89,10 +89,10 @@ static void stream_clean(Job *job) BlockDriverState *bs =3D blk_bs(bjob->blk); =20 /* Reopen the image back in read-only mode if necessary */ - if (s->bs_flags !=3D bdrv_get_flags(bs)) { + if (s->bs_read_only) { /* Give up write permissions before making it read-only */ blk_set_perm(bjob->blk, 0, BLK_PERM_ALL, &error_abort); - bdrv_reopen(bs, s->bs_flags, NULL); + bdrv_reopen_set_read_only(bs, true, NULL); } =20 g_free(s->backing_file_str); @@ -226,12 +226,12 @@ void stream_start(const char *job_id, BlockDriverStat= e *bs, { StreamBlockJob *s; BlockDriverState *iter; - int orig_bs_flags; + bool bs_read_only; =20 /* Make sure that the image is opened in read-write mode */ - orig_bs_flags =3D bdrv_get_flags(bs); - if (!(orig_bs_flags & BDRV_O_RDWR)) { - if (bdrv_reopen(bs, orig_bs_flags | BDRV_O_RDWR, errp) !=3D 0) { + bs_read_only =3D bdrv_is_read_only(bs); + if (bs_read_only) { + if (bdrv_reopen_set_read_only(bs, false, errp) !=3D 0) { return; } } @@ -261,7 +261,7 @@ void stream_start(const char *job_id, BlockDriverState = *bs, =20 s->base =3D base; s->backing_file_str =3D g_strdup(backing_file_str); - s->bs_flags =3D orig_bs_flags; + s->bs_read_only =3D bs_read_only; =20 s->on_error =3D on_error; trace_stream_start(bs, base, s); @@ -269,7 +269,7 @@ void stream_start(const char *job_id, BlockDriverState = *bs, return; =20 fail: - if (orig_bs_flags !=3D bdrv_get_flags(bs)) { - bdrv_reopen(bs, orig_bs_flags, NULL); + if (bs_read_only) { + bdrv_reopen_set_read_only(bs, true, NULL); } } --=20 2.19.2