From nobody Tue Feb 10 01:30:20 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; 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 1500263571905940.7481869393193; Sun, 16 Jul 2017 20:52:51 -0700 (PDT) Received: from localhost ([::1]:47752 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dWx5W-0003da-OJ for importer@patchew.org; Sun, 16 Jul 2017 23:52:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42485) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dWx1X-0000k4-9G for qemu-devel@nongnu.org; Sun, 16 Jul 2017 23:48:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dWx1U-0004Zx-7S for qemu-devel@nongnu.org; Sun, 16 Jul 2017 23:48:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52292) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dWx1U-0004Z9-1B for qemu-devel@nongnu.org; Sun, 16 Jul 2017 23:48:40 -0400 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 E569B5F7B0; Mon, 17 Jul 2017 03:48:38 +0000 (UTC) Received: from lemon.redhat.com (ovpn-12-94.pek2.redhat.com [10.72.12.94]) by smtp.corp.redhat.com (Postfix) with ESMTP id B3AFC60E38; Mon, 17 Jul 2017 03:48:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com E569B5F7B0 Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com E569B5F7B0 From: Fam Zheng To: qemu-devel@nongnu.org Date: Mon, 17 Jul 2017 11:48:15 +0800 Message-Id: <20170717034825.1524-6-famz@redhat.com> In-Reply-To: <20170717034825.1524-1-famz@redhat.com> References: <20170717034825.1524-1-famz@redhat.com> 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 [10.5.110.39]); Mon, 17 Jul 2017 03:48:39 +0000 (UTC) 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 05/15] vvfat: make it thread-safe 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: Peter Maydell Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Paolo Bonzini Reviewed-by: Eric Blake Reviewed-by: Stefan Hajnoczi Reviewed-by: Fam Zheng Signed-off-by: Paolo Bonzini Message-Id: <20170629132749.997-6-pbonzini@redhat.com> Signed-off-by: Fam Zheng --- block/vvfat.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/block/vvfat.c b/block/vvfat.c index 4fd28e1..4dae790 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -3078,8 +3078,14 @@ static int coroutine_fn write_target_commit(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags) { + int ret; + BDRVVVFATState* s =3D *((BDRVVVFATState**) bs->opaque); - return try_commit(s); + qemu_co_mutex_lock(&s->lock); + ret =3D try_commit(s); + qemu_co_mutex_unlock(&s->lock); + + return ret; } =20 static void write_target_close(BlockDriverState *bs) { --=20 2.9.4