From patchwork Wed Nov 14 15:21:36 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Kinsbursky X-Patchwork-Id: 1741801 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 085CF3FC64 for ; Wed, 14 Nov 2012 15:21:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423005Ab2KNPTS (ORCPT ); Wed, 14 Nov 2012 10:19:18 -0500 Received: from mailhub.sw.ru ([195.214.232.25]:25627 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422677Ab2KNPTQ (ORCPT ); Wed, 14 Nov 2012 10:19:16 -0500 Received: from localhost.localdomain ([10.30.21.131]) by relay.sw.ru (8.13.4/8.13.4) with ESMTP id qAEFIog8012249; Wed, 14 Nov 2012 19:18:50 +0400 (MSK) Subject: [PATCH v2 07/15] nfsd: make unconf_name_tree per net To: bfields@fieldses.org From: Stanislav Kinsbursky Cc: linux-nfs@vger.kernel.org, devel@openvz.org, Trond.Myklebust@netapp.com, linux-kernel@vger.kernel.org, jlayton@redhat.com Date: Wed, 14 Nov 2012 18:21:36 +0300 Message-ID: <20121114152136.4708.89742.stgit@localhost.localdomain> In-Reply-To: <20121114152018.4708.63125.stgit@localhost.localdomain> References: <20121114152018.4708.63125.stgit@localhost.localdomain> User-Agent: StGit/0.16 MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org This hash holds nfs4_clients info, which are network namespace aware. So let's make it allocated per network namespace. Signed-off-by: Stanislav Kinsbursky --- fs/nfsd/netns.h | 4 ++++ fs/nfsd/nfs4state.c | 42 +++++++++++++++++++----------------------- 2 files changed, 23 insertions(+), 23 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 1ff781f..1e76030 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -50,12 +50,16 @@ struct nfsd_net { * * conf_id_hashtbl[], and conf_name_tree hold confirmed * setclientid_confirmed info. + * + * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed + * setclientid info. */ struct list_head *reclaim_str_hashtbl; int reclaim_str_hashtbl_size; struct list_head *conf_id_hashtbl; struct rb_root conf_name_tree; struct list_head *unconf_id_hashtbl; + struct rb_root unconf_name_tree; }; extern int nfsd_net_id; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index b967804..c38fea9 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -404,9 +404,6 @@ static unsigned int clientstr_hashval(const char *name) } /* - * unconf_id_hashtbl[] and unconf_name_tree hold unconfirmed - * setclientid info. - * * client_lru holds client queue ordered by nfs4_client.cl_time * for lease renewal. * @@ -415,7 +412,6 @@ static unsigned int clientstr_hashval(const char *name) * * All of the above fields are protected by the client_mutex. */ -static struct rb_root unconf_name_tree; static struct list_head client_lru; static struct list_head close_lru; @@ -1134,7 +1130,7 @@ destroy_client(struct nfs4_client *clp) if (test_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags)) rb_erase(&clp->cl_namenode, &nn->conf_name_tree); else - rb_erase(&clp->cl_namenode, &unconf_name_tree); + rb_erase(&clp->cl_namenode, &nn->unconf_name_tree); spin_lock(&client_lock); unhash_client_locked(clp); if (atomic_read(&clp->cl_refcount) == 0) @@ -1371,7 +1367,7 @@ add_to_unconfirmed(struct nfs4_client *clp) struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); clear_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags); - add_clp_to_name_tree(clp, &unconf_name_tree); + add_clp_to_name_tree(clp, &nn->unconf_name_tree); idhashval = clientid_hashval(clp->cl_clientid.cl_id); list_add(&clp->cl_idhash, &nn->unconf_id_hashtbl[idhashval]); renew_client(clp); @@ -1385,7 +1381,7 @@ move_to_confirmed(struct nfs4_client *clp) dprintk("NFSD: move_to_confirm nfs4_client %p\n", clp); list_move(&clp->cl_idhash, &nn->conf_id_hashtbl[idhashval]); - rb_erase(&clp->cl_namenode, &unconf_name_tree); + rb_erase(&clp->cl_namenode, &nn->unconf_name_tree); add_clp_to_name_tree(clp, &nn->conf_name_tree); set_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags); renew_client(clp); @@ -1436,9 +1432,9 @@ find_confirmed_client_by_name(struct xdr_netobj *name, struct nfsd_net *nn) } static struct nfs4_client * -find_unconfirmed_client_by_name(struct xdr_netobj *name) +find_unconfirmed_client_by_name(struct xdr_netobj *name, struct nfsd_net *nn) { - return find_clp_in_name_tree(name, &unconf_name_tree); + return find_clp_in_name_tree(name, &nn->unconf_name_tree); } static void @@ -1677,7 +1673,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, goto out; } - unconf = find_unconfirmed_client_by_name(&exid->clname); + unconf = find_unconfirmed_client_by_name(&exid->clname, nn); if (unconf) /* case 4, possible retry or client restart */ expire_client(unconf); @@ -2239,7 +2235,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; } } - unconf = find_unconfirmed_client_by_name(&clname); + unconf = find_unconfirmed_client_by_name(&clname, nn); if (unconf) expire_client(unconf); status = nfserr_jukebox; @@ -4720,7 +4716,6 @@ nfs4_state_init(void) { int i; - unconf_name_tree = RB_ROOT; for (i = 0; i < SESSION_HASH_SIZE; i++) INIT_LIST_HEAD(&sessionid_hashtbl[i]); for (i = 0; i < FILE_HASH_SIZE; i++) { @@ -4776,6 +4771,7 @@ static int nfs4_state_start_net(struct net *net) INIT_LIST_HEAD(&nn->unconf_id_hashtbl[i]); } nn->conf_name_tree = RB_ROOT; + nn->unconf_name_tree = RB_ROOT; return 0; @@ -4791,6 +4787,7 @@ __nfs4_state_shutdown_net(struct net *net) int i; struct nfs4_client *clp = NULL; struct nfsd_net *nn = net_generic(net, nfsd_net_id); + struct rb_node *node, *tmp; for (i = 0; i < CLIENT_HASH_SIZE; i++) { while (!list_empty(&nn->conf_id_hashtbl[i])) { @@ -4798,6 +4795,16 @@ __nfs4_state_shutdown_net(struct net *net) destroy_client(clp); } } + + node = rb_first(&nn->unconf_name_tree); + while (node != NULL) { + tmp = node; + node = rb_next(tmp); + clp = rb_entry(tmp, struct nfs4_client, cl_namenode); + rb_erase(tmp, &nn->unconf_name_tree); + destroy_client(clp); + } + kfree(nn->unconf_id_hashtbl); kfree(nn->conf_id_hashtbl); } @@ -4857,22 +4864,11 @@ out_recovery: static void __nfs4_state_shutdown(struct net *net) { - struct nfs4_client *clp = NULL; struct nfs4_delegation *dp = NULL; struct list_head *pos, *next, reaplist; - struct rb_node *node, *tmp; __nfs4_state_shutdown_net(net); - node = rb_first(&unconf_name_tree); - while (node != NULL) { - tmp = node; - node = rb_next(tmp); - clp = rb_entry(tmp, struct nfs4_client, cl_namenode); - rb_erase(tmp, &unconf_name_tree); - destroy_client(clp); - } - INIT_LIST_HEAD(&reaplist); spin_lock(&recall_lock); list_for_each_safe(pos, next, &del_recall_lru) {