From nobody Fri Dec 19 08:21:19 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.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; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1576171690; cv=none; d=zohomail.com; s=zohoarc; b=LqVtCAOFHSaDXpBP1K3l0VlZzCmEy+oQK265Xf1BuA5i1XZM9H9zN0T7NRX+4k9tp68qhuRHk9VvqoaEIawJvRTFA/rLAY9PHASQEjlnMSNIzBTqyN8k7DLhKD4vA+Oo0ZWwQ9RgprmIiJdkGgOZTDBTMaViwpNPbvqJfKUDMD8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1576171690; h=Content-Type:Content-Transfer-Encoding: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; bh=vm85j66IltQCXExFgd1+RioUfVQTx62vadIJZy4Eo6I=; b=guX4+U39FnrM0vT55Exqc3MdgtEqeDpHi2nbvQacpMPwmiSseFsBRhy5mlw1Dw7XS4b75wQUNTNd8/D8lhhYLhaWjGfVnppYjAP+m4LUo5/Ftv2uaF4EE2LtqjjBpfWwkQ9gWLcyMc7LmhFmek4HBA3vcNkX51pwd94DeBpP9iE= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass 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 1576171690611150.37474362342448; Thu, 12 Dec 2019 09:28:10 -0800 (PST) Received: from localhost ([::1]:34662 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ifSG0-0003Oy-Re for importer@patchew.org; Thu, 12 Dec 2019 12:28:08 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55553) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ifRWB-0006cL-Sx for qemu-devel@nongnu.org; Thu, 12 Dec 2019 11:40:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ifRWA-0003Bd-Qs for qemu-devel@nongnu.org; Thu, 12 Dec 2019 11:40:47 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:59385 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ifRWA-0003Ak-HM for qemu-devel@nongnu.org; Thu, 12 Dec 2019 11:40:46 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-220-WNBeU_9aOea8ykyopDn8fg-1; Thu, 12 Dec 2019 11:40:45 -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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id 478FE800D54 for ; Thu, 12 Dec 2019 16:40:44 +0000 (UTC) Received: from dgilbert-t580.localhost (ovpn-116-226.ams2.redhat.com [10.36.116.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6EED660BE1; Thu, 12 Dec 2019 16:40:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576168846; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vm85j66IltQCXExFgd1+RioUfVQTx62vadIJZy4Eo6I=; b=LZFLQ7YJN1nsnBL3fa6B0sHKMimj1NJ947BUhPAoz82LojQddk5RxQWBvZZdI0Wau462n5 sNy8KZQhfFUPQmxqN3ganns9q33QRW2Pmifurx4NYepPPDy7egO678gXgOu7ooBKk5lkPB HAhoKvXRGKc5Lea2OdvA/BvfHdqDt10= From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, stefanha@redhat.com, vgoyal@redhat.com Subject: [PATCH 062/104] virtiofsd: Handle hard reboot Date: Thu, 12 Dec 2019 16:38:22 +0000 Message-Id: <20191212163904.159893-63-dgilbert@redhat.com> In-Reply-To: <20191212163904.159893-1-dgilbert@redhat.com> References: <20191212163904.159893-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-MC-Unique: WNBeU_9aOea8ykyopDn8fg-1 X-Mimecast-Spam-Score: 0 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: 205.139.110.120 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" From: "Dr. David Alan Gilbert" Handle a mount hard reboot (without unmount) mount we get another 'init' which FUSE doesn't normally expect. Signed-off-by: Dr. David Alan Gilbert --- tools/virtiofsd/fuse_lowlevel.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/tools/virtiofsd/fuse_lowlevel.c b/tools/virtiofsd/fuse_lowleve= l.c index 2d1d1a2e59..45125ef66a 100644 --- a/tools/virtiofsd/fuse_lowlevel.c +++ b/tools/virtiofsd/fuse_lowlevel.c @@ -2436,7 +2436,21 @@ void fuse_session_process_buf_int(struct fuse_sessio= n *se, goto reply_err; } } else if (in->opcode =3D=3D FUSE_INIT || in->opcode =3D=3D CUSE_INIT)= { - goto reply_err; + if (fuse_lowlevel_is_virtio(se)) { + /* + * TODO: This is after a hard reboot typically, we need to do + * a destroy, but we can't reply to this request yet so + * we can't use do_destroy + */ + fuse_log(FUSE_LOG_DEBUG, "%s: reinit\n", __func__); + se->got_destroy =3D 1; + se->got_init =3D 0; + if (se->op.destroy) { + se->op.destroy(se->userdata); + } + } else { + goto reply_err; + } } =20 err =3D EACCES; --=20 2.23.0