From: Jeff Layton Subject: Re: [PATCH] NLM: Add lockd reference counting and clean up lockd startup and shutdown Date: Sat, 8 Dec 2007 09:17:54 -0500 Message-ID: <20071208091754.47ccc377@tleilax.poochiereds.net> References: <1197118932-4512-1-git-send-email-jlayton@redhat.com> <20071208140747.GA11675@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: linux-nfs@vger.kernel.org, nfsv4@linux-nfs.org, linux-kernel@vger.kernel.org To: Christoph Hellwig Return-path: Received: from mx1.redhat.com ([66.187.233.31]:33510 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751163AbXLHOSK (ORCPT ); Sat, 8 Dec 2007 09:18:10 -0500 In-Reply-To: <20071208140747.GA11675@infradead.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Sat, 8 Dec 2007 14:07:47 +0000 Christoph Hellwig wrote: > > + mutex_lock(&nlmsvc_mutex); > > + while (atomic_read(&nlmsvc_ref) != 0) { > > might be better to do the refcounting outside the thread and use the > kthread api, which is something we still need to do for lockd anyway. > Currently sending a SIGKILL to lockd tells it to drop all of its locks without exiting. If we change lockd to use kthreads, will we have to change that to use a different mechanism? -- Jeff Layton