From owner-freebsd-fs@FreeBSD.ORG Mon Nov 22 13:19:33 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 42F2710656C5 for ; Mon, 22 Nov 2010 13:19:33 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-annu.mail.uoguelph.ca (esa-annu.mail.uoguelph.ca [131.104.91.36]) by mx1.freebsd.org (Postfix) with ESMTP id 04EE18FC08 for ; Mon, 22 Nov 2010 13:19:32 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgoFAAv96UyDaFvO/2dsb2JhbACDSpEGjnarapBGgSKDNnMEhFqGBA X-IronPort-AV: E=Sophos;i="4.59,236,1288584000"; d="scan'208";a="99774466" Received: from erie.cs.uoguelph.ca (HELO zcs3.mail.uoguelph.ca) ([131.104.91.206]) by esa-annu-pri.mail.uoguelph.ca with ESMTP; 22 Nov 2010 08:19:32 -0500 Received: from zcs3.mail.uoguelph.ca (localhost.localdomain [127.0.0.1]) by zcs3.mail.uoguelph.ca (Postfix) with ESMTP id 15BFFB3E95 for ; Mon, 22 Nov 2010 08:19:32 -0500 (EST) Date: Mon, 22 Nov 2010 08:19:32 -0500 (EST) From: Rick Macklem To: freebsd-fs@freebsd.org Message-ID: <1121329727.428865.1290431972028.JavaMail.root@erie.cs.uoguelph.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [12.16.49.138] X-Mailer: Zimbra 6.0.7_GA_2476.RHEL4 (ZimbraWebClient - IE8 (Win)/6.0.7_GA_2473.RHEL4_64) Subject: preferred kernel upcall method to master nfsd X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Nov 2010 13:19:33 -0000 Hi, The experimental NFSv4 server in the kernel needs to tell the master nfsd when to make a backup copy of the stable restart file. I know how to do this using a signal, but is there a better/preferred way under FreeBSD-current? Thanks in advance for any info, rick