From patchwork Mon Oct 7 19:48:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 11178395 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8DE9D13BD for ; Mon, 7 Oct 2019 19:49:25 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 64CE1206C2 for ; Mon, 7 Oct 2019 19:49:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 64CE1206C2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:49304 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iHZ0W-0000a0-IO for patchwork-qemu-devel@patchwork.kernel.org; Mon, 07 Oct 2019 15:49:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60974) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iHYzw-0008Qh-9h for qemu-devel@nongnu.org; Mon, 07 Oct 2019 15:48:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iHYzv-0008Tj-AU for qemu-devel@nongnu.org; Mon, 07 Oct 2019 15:48:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41230) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iHYzr-0008Ri-TX; Mon, 07 Oct 2019 15:48:44 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7376E51EE6; Mon, 7 Oct 2019 19:48:42 +0000 (UTC) Received: from blue.redhat.com (ovpn-116-162.phx2.redhat.com [10.3.116.162]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0F9495D6A3; Mon, 7 Oct 2019 19:48:41 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PATCH] qemu-nbd: Document benefit of --pid-file Date: Mon, 7 Oct 2019 14:48:40 -0500 Message-Id: <20191007194840.29518-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Mon, 07 Oct 2019 19:48:42 +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 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: vsementsov@virtuozzo.com, qemu-block@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" One benefit of --pid-file is that it is easier to probe the file system to see if a pid file has been created than it is to probe if a socket is available for connection. Document that this is an intentional feature. Signed-off-by: Eric Blake Reviewed-by: Max Reitz --- qemu-nbd.texi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/qemu-nbd.texi b/qemu-nbd.texi index 7f55657722bd..d495bbe8a0ed 100644 --- a/qemu-nbd.texi +++ b/qemu-nbd.texi @@ -118,7 +118,8 @@ in list mode. @item --fork Fork off the server process and exit the parent once the server is running. @item --pid-file=PATH -Store the server's process ID in the given file. +Store the server's process ID in the given file. The pid file is not +created until after the server socket is open. @item --tls-authz=ID Specify the ID of a qauthz object previously created with the --object option. This will be used to authorize connecting users