From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from mailhub.sw.ru ([195.214.232.25]:42943 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756724Ab2GYM53 (ORCPT ); Wed, 25 Jul 2012 08:57:29 -0400 Subject: [PATCH v2 02/15] LockD: make garbage collector network namespace aware. To: bfields@fieldses.org From: Stanislav Kinsbursky Cc: linux-nfs@vger.kernel.org, Trond.Myklebust@netapp.com, linux-kernel@vger.kernel.org, devel@openvz.org Date: Wed, 25 Jul 2012 16:56:03 +0400 Message-ID: <20120725125603.24376.90230.stgit@localhost.localdomain> In-Reply-To: <20120725125258.24376.82525.stgit@localhost.localdomain> References: <20120725125258.24376.82525.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: --- fs/lockd/host.c | 22 +++++++++++++--------- 1 files changed, 13 insertions(+), 9 deletions(-) diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 2c5f41b..991274a 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -45,7 +45,7 @@ static unsigned long next_gc; static unsigned long nrhosts; static DEFINE_MUTEX(nlm_host_mutex); -static void nlm_gc_hosts(void); +static void nlm_gc_hosts(struct net *net); struct nlm_lookup_host_info { const int server; /* search for server|client */ @@ -345,7 +345,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp, mutex_lock(&nlm_host_mutex); if (time_after_eq(jiffies, next_gc)) - nlm_gc_hosts(); + nlm_gc_hosts(net); chain = &nlm_server_hosts[nlm_hash_address(ni.sap)]; hlist_for_each_entry(host, pos, chain, h_hash) { @@ -588,7 +588,7 @@ nlm_shutdown_hosts_net(struct net *net) } /* Then, perform a garbage collection pass */ - nlm_gc_hosts(); + nlm_gc_hosts(net); mutex_unlock(&nlm_host_mutex); } @@ -623,27 +623,31 @@ nlm_shutdown_hosts(void) * mark & sweep for resources held by remote clients. */ static void -nlm_gc_hosts(void) +nlm_gc_hosts(struct net *net) { struct hlist_head *chain; struct hlist_node *pos, *next; struct nlm_host *host; - struct net *net = &init_net; - dprintk("lockd: host garbage collection\n"); - for_each_host(host, pos, chain, nlm_server_hosts) + dprintk("lockd: host garbage collection for net %p\n", net); + for_each_host(host, pos, chain, nlm_server_hosts) { + if (net && host->net != net) + continue; host->h_inuse = 0; + } /* Mark all hosts that hold locks, blocks or shares */ nlmsvc_mark_resources(net); for_each_host_safe(host, pos, next, chain, nlm_server_hosts) { + if (net && host->net != net) + continue; if (atomic_read(&host->h_count) || host->h_inuse || time_before(jiffies, host->h_expires)) { dprintk("nlm_gc_hosts skipping %s " - "(cnt %d use %d exp %ld)\n", + "(cnt %d use %d exp %ld net %p)\n", host->h_name, atomic_read(&host->h_count), - host->h_inuse, host->h_expires); + host->h_inuse, host->h_expires, host->net); continue; } nlm_destroy_host_locked(host);