nfsd: make conf_name_tree per net
This tree holds nfs4_clients info, which are network namespace aware. So let's make it per network namespace. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky
J. Bruce Fields
Родитель
8daae4dc0d
Коммит
382a62e76c
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@ -47,10 +47,14 @@ struct nfsd_net {
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/*
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* reclaim_str_hashtbl[] holds known client info from previous reset/reboot
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* used in reboot/reset lease grace period processing
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*
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* conf_id_hashtbl[], and conf_name_tree hold confirmed
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* setclientid_confirmed info.
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*/
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struct list_head *reclaim_str_hashtbl;
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int reclaim_str_hashtbl_size;
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struct list_head *conf_id_hashtbl;
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struct rb_root conf_name_tree;
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};
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extern int nfsd_net_id;
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@ -404,9 +404,6 @@ static unsigned int clientstr_hashval(const char *name)
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}
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/*
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* conf_id_hashtbl[], and conf_name_tree hold confirmed
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* setclientid_confirmed info.
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*
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* unconf_id_hashtbl[] and unconf_name_tree hold unconfirmed
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* setclientid info.
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*
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@ -419,7 +416,6 @@ static unsigned int clientstr_hashval(const char *name)
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* All of the above fields are protected by the client_mutex.
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*/
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static struct list_head unconf_id_hashtbl[CLIENT_HASH_SIZE];
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static struct rb_root conf_name_tree;
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static struct rb_root unconf_name_tree;
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static struct list_head client_lru;
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static struct list_head close_lru;
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@ -1114,6 +1110,7 @@ destroy_client(struct nfs4_client *clp)
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struct nfs4_openowner *oo;
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struct nfs4_delegation *dp;
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struct list_head reaplist;
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struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
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INIT_LIST_HEAD(&reaplist);
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spin_lock(&recall_lock);
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@ -1136,7 +1133,7 @@ destroy_client(struct nfs4_client *clp)
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svc_xprt_put(clp->cl_cb_conn.cb_xprt);
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list_del(&clp->cl_idhash);
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if (test_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags))
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rb_erase(&clp->cl_namenode, &conf_name_tree);
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rb_erase(&clp->cl_namenode, &nn->conf_name_tree);
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else
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rb_erase(&clp->cl_namenode, &unconf_name_tree);
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spin_lock(&client_lock);
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@ -1389,7 +1386,7 @@ move_to_confirmed(struct nfs4_client *clp)
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dprintk("NFSD: move_to_confirm nfs4_client %p\n", clp);
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list_move(&clp->cl_idhash, &nn->conf_id_hashtbl[idhashval]);
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rb_erase(&clp->cl_namenode, &unconf_name_tree);
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add_clp_to_name_tree(clp, &conf_name_tree);
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add_clp_to_name_tree(clp, &nn->conf_name_tree);
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set_bit(NFSD4_CLIENT_CONFIRMED, &clp->cl_flags);
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renew_client(clp);
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}
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@ -1433,9 +1430,9 @@ static bool clp_used_exchangeid(struct nfs4_client *clp)
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}
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static struct nfs4_client *
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find_confirmed_client_by_name(struct xdr_netobj *name)
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find_confirmed_client_by_name(struct xdr_netobj *name, struct nfsd_net *nn)
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{
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return find_clp_in_name_tree(name, &conf_name_tree);
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return find_clp_in_name_tree(name, &nn->conf_name_tree);
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}
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static struct nfs4_client *
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@ -1635,7 +1632,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
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/* Cases below refer to rfc 5661 section 18.35.4: */
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nfs4_lock_state();
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conf = find_confirmed_client_by_name(&exid->clname);
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conf = find_confirmed_client_by_name(&exid->clname, nn);
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if (conf) {
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bool creds_match = same_creds(&conf->cl_cred, &rqstp->rq_cred);
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bool verfs_match = same_verf(&verf, &conf->cl_verifier);
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@ -1829,7 +1826,7 @@ nfsd4_create_session(struct svc_rqst *rqstp,
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status = nfserr_seq_misordered;
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goto out_free_conn;
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}
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old = find_confirmed_client_by_name(&unconf->cl_name);
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old = find_confirmed_client_by_name(&unconf->cl_name, nn);
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if (old)
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expire_client(old);
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move_to_confirmed(unconf);
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@ -2227,7 +2224,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
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/* Cases below refer to rfc 3530 section 14.2.33: */
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nfs4_lock_state();
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conf = find_confirmed_client_by_name(&clname);
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conf = find_confirmed_client_by_name(&clname, nn);
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if (conf) {
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/* case 0: */
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status = nfserr_clid_inuse;
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@ -2309,7 +2306,7 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
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nfsd4_probe_callback(conf);
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expire_client(unconf);
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} else { /* case 3: normal case; new or rebooted client */
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conf = find_confirmed_client_by_name(&unconf->cl_name);
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conf = find_confirmed_client_by_name(&unconf->cl_name, nn);
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if (conf)
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expire_client(conf);
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move_to_confirmed(unconf);
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@ -4726,7 +4723,6 @@ nfs4_state_init(void)
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for (i = 0; i < CLIENT_HASH_SIZE; i++) {
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INIT_LIST_HEAD(&unconf_id_hashtbl[i]);
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}
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conf_name_tree = RB_ROOT;
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unconf_name_tree = RB_ROOT;
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for (i = 0; i < SESSION_HASH_SIZE; i++)
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INIT_LIST_HEAD(&sessionid_hashtbl[i]);
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@ -4772,12 +4768,17 @@ static int nfs4_state_start_net(struct net *net)
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nn->conf_id_hashtbl = kmalloc(sizeof(struct list_head) *
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CLIENT_HASH_SIZE, GFP_KERNEL);
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if (!nn->conf_id_hashtbl)
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return -ENOMEM;
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goto err;
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for (i = 0; i < CLIENT_HASH_SIZE; i++)
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for (i = 0; i < CLIENT_HASH_SIZE; i++) {
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INIT_LIST_HEAD(&nn->conf_id_hashtbl[i]);
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}
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nn->conf_name_tree = RB_ROOT;
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return 0;
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err:
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return -ENOMEM;
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}
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static void
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