From nobody Tue Nov 11 17:33:22 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1564590184; cv=none; d=zoho.com; s=zohoarc; b=JiOBTDvUNk2xA1Pomy6+jblQ0nlRN2lDByyTYa72jw9zE3AQg6t2Jf8u5U97C/RV5BUhZR9k9h674PGEoTzYKv+VbigAc65Q1ICUpOb5b0yFJp5csqWIeooJS/av6UjVcT4Z+th3Nq/b525qQJBokc86SP4AAu0XkYzOZRDox6Y= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1564590184; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=wlLcHDXLJKi5+6h+zjt6SkM8jEvH06TKWHI8NmrzgcA=; b=kK2CohK+khjxOHplxoUIgQt43MLALddglH+ToSAUVC9XQ2/0cxDiAh4MXBSK5Kag3hEyQjEhykQq6zbIalxjiA6l/R7bUdqYhuEh7gE3Bn63kQAJly4f7JGyIw0gollfdj+AvLSMbz8N15trxat2a9KIu6uxgUzndTPkwl5C+Fs= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1564590184559819.6464852966647; Wed, 31 Jul 2019 09:23:04 -0700 (PDT) Received: from localhost ([::1]:42570 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsrNX-0006U4-Kq for importer@patchew.org; Wed, 31 Jul 2019 12:23:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41149) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsrBO-0006EB-JS for qemu-devel@nongnu.org; Wed, 31 Jul 2019 12:10:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hsrBN-0001uO-Md for qemu-devel@nongnu.org; Wed, 31 Jul 2019 12:10:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37188) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hsrBN-0001u9-Hn for qemu-devel@nongnu.org; Wed, 31 Jul 2019 12:10:29 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id DD8AA4E924; Wed, 31 Jul 2019 16:10:28 +0000 (UTC) Received: from localhost (ovpn-117-27.ams2.redhat.com [10.36.117.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 116A319C70; Wed, 31 Jul 2019 16:10:23 +0000 (UTC) From: Stefan Hajnoczi To: virtio-fs@redhat.com, qemu-devel@nongnu.org Date: Wed, 31 Jul 2019 17:10:03 +0100 Message-Id: <20190731161006.9447-3-stefanha@redhat.com> In-Reply-To: <20190731161006.9447-1-stefanha@redhat.com> References: <20190731161006.9447-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Wed, 31 Jul 2019 16:10:28 +0000 (UTC) Content-Transfer-Encoding: quoted-printable 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] [PATCH 2/5] virtiofsd: take lo->mutex around lo_add_dirp_mapping() 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: Liu Bo , "Dr. David Alan Gilbert" , Stefan Hajnoczi Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" The lo_add_dirp_mapping() function assumes lo->mutex is held, so we should acquire it. Signed-off-by: Stefan Hajnoczi --- contrib/virtiofsd/passthrough_ll.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/contrib/virtiofsd/passthrough_ll.c b/contrib/virtiofsd/passthr= ough_ll.c index 417a104218..e1d729d26b 100644 --- a/contrib/virtiofsd/passthrough_ll.c +++ b/contrib/virtiofsd/passthrough_ll.c @@ -1357,7 +1357,9 @@ static void lo_opendir(fuse_req_t req, fuse_ino_t ino= , struct fuse_file_info *fi =20 g_atomic_int_set(&d->refcount, 1); /* paired with lo_releasedir() */ =20 + pthread_mutex_lock(&lo->mutex); fh =3D lo_add_dirp_mapping(req, d); + pthread_mutex_unlock(&lo->mutex); if (fh =3D=3D -1) goto out_err; =20 --=20 2.21.0