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]:36937 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756659Ab2GYM5U (ORCPT ); Wed, 25 Jul 2012 08:57:20 -0400 Subject: [PATCH v2 01/15] LockD: mark host per network namespace on garbage collect 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 16:55:54 +0400 Message-ID: <20120725125554.24376.79319.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: This is required for per-network NLM shutdown and cleanup. This patch passes init_net for a while. Signed-off-by: Stanislav Kinsbursky --- fs/lockd/host.c | 3 ++- fs/lockd/svcsubs.c | 19 +++++++++++++------ include/linux/lockd/lockd.h | 2 +- 3 files changed, 16 insertions(+), 8 deletions(-) diff --git a/fs/lockd/host.c b/fs/lockd/host.c index eb75ca7..2c5f41b 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -628,13 +628,14 @@ nlm_gc_hosts(void) 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) host->h_inuse = 0; /* Mark all hosts that hold locks, blocks or shares */ - nlmsvc_mark_resources(); + nlmsvc_mark_resources(net); for_each_host_safe(host, pos, next, chain, nlm_server_hosts) { if (atomic_read(&host->h_count) || host->h_inuse diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index 2240d38..0deb5f6 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c @@ -309,7 +309,8 @@ nlm_release_file(struct nlm_file *file) * Helpers function for resource traversal * * nlmsvc_mark_host: - * used by the garbage collector; simply sets h_inuse. + * used by the garbage collector; simply sets h_inuse only for those + * hosts, which passed network check. * Always returns 0. * * nlmsvc_same_host: @@ -320,12 +321,15 @@ nlm_release_file(struct nlm_file *file) * returns 1 iff the host is a client. * Used by nlmsvc_invalidate_all */ + static int -nlmsvc_mark_host(void *data, struct nlm_host *dummy) +nlmsvc_mark_host(void *data, struct nlm_host *hint) { struct nlm_host *host = data; - host->h_inuse = 1; + if ((hint->net == NULL) || + (host->net == hint->net)) + host->h_inuse = 1; return 0; } @@ -358,10 +362,13 @@ nlmsvc_is_client(void *data, struct nlm_host *dummy) * Mark all hosts that still hold resources */ void -nlmsvc_mark_resources(void) +nlmsvc_mark_resources(struct net *net) { - dprintk("lockd: nlmsvc_mark_resources\n"); - nlm_traverse_files(NULL, nlmsvc_mark_host, NULL); + struct nlm_host hint; + + dprintk("lockd: nlmsvc_mark_resources for net %p\n", net); + hint.net = net; + nlm_traverse_files(&hint, nlmsvc_mark_host, NULL); } /* diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index f04ce6a..50e31a2 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -279,7 +279,7 @@ void nlmsvc_release_call(struct nlm_rqst *); __be32 nlm_lookup_file(struct svc_rqst *, struct nlm_file **, struct nfs_fh *); void nlm_release_file(struct nlm_file *); -void nlmsvc_mark_resources(void); +void nlmsvc_mark_resources(struct net *); void nlmsvc_free_host_resources(struct nlm_host *); void nlmsvc_invalidate_all(void);