From nobody Mon Feb 9 03:30:28 2026 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; dkim=fail; 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1542031635156159.63076855537724; Mon, 12 Nov 2018 06:07:15 -0800 (PST) Received: from localhost ([::1]:48799 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMCrx-0006Ok-Qz for importer@patchew.org; Mon, 12 Nov 2018 09:07:13 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57722) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gMCme-0000fS-Hh for qemu-devel@nongnu.org; Mon, 12 Nov 2018 09:01:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gMCmH-0001JA-KB for qemu-devel@nongnu.org; Mon, 12 Nov 2018 09:01:34 -0500 Received: from fanzine.igalia.com ([91.117.99.155]:57680) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gMCmF-0001Fx-9D; Mon, 12 Nov 2018 09:01:20 -0500 Received: from [194.100.51.2] (helo=perseus.local) by fanzine.igalia.com with esmtpsa (Cipher TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim) id 1gMCmA-000749-UK; Mon, 12 Nov 2018 15:01:15 +0100 Received: from berto by perseus.local with local (Exim 4.89) (envelope-from ) id 1gMClq-0007CV-8e; Mon, 12 Nov 2018 16:00:54 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=References:In-Reply-To:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=19Ov5fheguogZYtvmgEGscVh0qZYm9xCtL7NsuwV1so=; b=UJo7LBT7miRRI1wWfYDfo5cHpIMZOD3baGsytMUvw+7eO3lO9j0L21A/d75EY0Rgljl+5WsjJSrb8AePnhjyFLcKJlGL2v3SHTxZH1MZsvRgIq+J13T22MCrgzqxuCOBu6wlxp7WTBEcYx1TC7wEEednHkwA6U+wuDiVTxlzEdYzgRU3x5eXYSDBu2EIT2lOmy7FbyIosLbIQ9Ek3/39+OZcD2wptfSaNXFMrq5EDj4lhJsf/icxWAThEFSZzVNmTgaQ4FvgmmggQbqfYiJi0yWO5PeIt0h0SqrgaIGxx+awRcSDmi9MC7PbsytQRS7WVI563fcBXUJWXJenEE79kQ==; From: Alberto Garcia To: qemu-devel@nongnu.org Date: Mon, 12 Nov 2018 16:00:35 +0200 Message-Id: X-Mailer: git-send-email 2.11.0 In-Reply-To: References: In-Reply-To: References: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-Received-From: 91.117.99.155 Subject: [Qemu-devel] [PATCH v5 03/16] block: Use bdrv_reopen_set_read_only() in commit_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: Kevin Wolf , Alberto Garcia , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 --- block/commit.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/block/commit.c b/block/commit.c index a2da5740b0..a53c2d04b0 100644 --- a/block/commit.c +++ b/block/commit.c @@ -38,7 +38,7 @@ typedef struct CommitBlockJob { BlockBackend *base; BlockDriverState *base_bs; BlockdevOnError on_error; - int base_flags; + bool base_read_only; char *backing_file_str; } CommitBlockJob; =20 @@ -124,8 +124,8 @@ static void commit_clean(Job *job) /* restore base open flags here if appropriate (e.g., change the base = back * to r/o). These reopens do not need to be atomic, since we won't abo= rt * even on failure here */ - if (s->base_flags !=3D bdrv_get_flags(s->base_bs)) { - bdrv_reopen(s->base_bs, s->base_flags, NULL); + if (s->base_read_only) { + bdrv_reopen_set_read_only(s->base_bs, true, NULL); } =20 g_free(s->backing_file_str); @@ -264,7 +264,6 @@ void commit_start(const char *job_id, BlockDriverState = *bs, const char *filter_node_name, Error **errp) { CommitBlockJob *s; - int orig_base_flags; BlockDriverState *iter; BlockDriverState *commit_top_bs =3D NULL; Error *local_err =3D NULL; @@ -283,11 +282,9 @@ void commit_start(const char *job_id, BlockDriverState= *bs, } =20 /* convert base to r/w, if necessary */ - orig_base_flags =3D bdrv_get_flags(base); - if (!(orig_base_flags & BDRV_O_RDWR)) { - bdrv_reopen(base, orig_base_flags | BDRV_O_RDWR, &local_err); - if (local_err !=3D NULL) { - error_propagate(errp, local_err); + s->base_read_only =3D bdrv_is_read_only(base); + if (s->base_read_only) { + if (bdrv_reopen_set_read_only(base, false, errp) !=3D 0) { goto fail; } } @@ -363,7 +360,6 @@ void commit_start(const char *job_id, BlockDriverState = *bs, goto fail; } =20 - s->base_flags =3D orig_base_flags; s->backing_file_str =3D g_strdup(backing_file_str); s->on_error =3D on_error; =20 --=20 2.11.0