1 files changed, 49 insertions, 18 deletions

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2c53be6d3579..c55298ed5772 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -127,7 +127,17 @@ static const struct file_operations transaction_ops = {
 
 static int exports_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &nfs_exports_op);
+	int err;
+	struct seq_file *seq;
+	struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
+
+	err = seq_open(file, &nfs_exports_op);
+	if (err)
+		return err;
+
+	seq = file->private_data;
+	seq->private = nn->svc_export_cache;
+	return 0;
 }
 
 static const struct file_operations exports_operations = {
@@ -345,7 +355,7 @@ static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
 	if (!dom)
 		return -ENOMEM;
 
-	len = exp_rootfh(dom, path, &fh,  maxsize);
+	len = exp_rootfh(&init_net, dom, path, &fh,  maxsize);
 	auth_domain_put(dom);
 	if (len)
 		return len;
@@ -651,6 +661,7 @@ static ssize_t __write_ports_addfd(char *buf)
 {
 	char *mesg = buf;
 	int fd, err;
+	struct net *net = &init_net;
 
 	err = get_int(&mesg, &fd);
 	if (err != 0 || fd < 0)
@@ -662,6 +673,8 @@ static ssize_t __write_ports_addfd(char *buf)
 
 	err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
 	if (err < 0) {
+		if (nfsd_serv->sv_nrthreads == 1)
+			svc_shutdown_net(nfsd_serv, net);
 		svc_destroy(nfsd_serv);
 		return err;
 	}
@@ -699,6 +712,7 @@ static ssize_t __write_ports_addxprt(char *buf)
 	char transport[16];
 	struct svc_xprt *xprt;
 	int port, err;
+	struct net *net = &init_net;
 
 	if (sscanf(buf, "%15s %4u", transport, &port) != 2)
 		return -EINVAL;
@@ -710,12 +724,12 @@ static ssize_t __write_ports_addxprt(char *buf)
 	if (err != 0)
 		return err;
 
-	err = svc_create_xprt(nfsd_serv, transport, &init_net,
+	err = svc_create_xprt(nfsd_serv, transport, net,
 				PF_INET, port, SVC_SOCK_ANONYMOUS);
 	if (err < 0)
 		goto out_err;
 
-	err = svc_create_xprt(nfsd_serv, transport, &init_net,
+	err = svc_create_xprt(nfsd_serv, transport, net,
 				PF_INET6, port, SVC_SOCK_ANONYMOUS);
 	if (err < 0 && err != -EAFNOSUPPORT)
 		goto out_close;
@@ -724,12 +738,14 @@ static ssize_t __write_ports_addxprt(char *buf)
 	nfsd_serv->sv_nrthreads--;
 	return 0;
 out_close:
-	xprt = svc_find_xprt(nfsd_serv, transport, &init_net, PF_INET, port);
+	xprt = svc_find_xprt(nfsd_serv, transport, net, PF_INET, port);
 	if (xprt != NULL) {
 		svc_close_xprt(xprt);
 		svc_xprt_put(xprt);
 	}
 out_err:
+	if (nfsd_serv->sv_nrthreads == 1)
+		svc_shutdown_net(nfsd_serv, net);
 	svc_destroy(nfsd_serv);
 	return err;
 }
@@ -1127,7 +1143,34 @@ static int create_proc_exports_entry(void)
 #endif
 
 int nfsd_net_id;
+
+static __net_init int nfsd_init_net(struct net *net)
+{
+	int retval;
+
+	retval = nfsd_export_init(net);
+	if (retval)
+		goto out_export_error;
+	retval = nfsd_idmap_init(net);
+	if (retval)
+		goto out_idmap_error;
+	return 0;
+
+out_idmap_error:
+	nfsd_export_shutdown(net);
+out_export_error:
+	return retval;
+}
+
+static __net_exit void nfsd_exit_net(struct net *net)
+{
+	nfsd_idmap_shutdown(net);
+	nfsd_export_shutdown(net);
+}
+
 static struct pernet_operations nfsd_net_ops = {
+	.init = nfsd_init_net,
+	.exit = nfsd_exit_net,
 	.id   = &nfsd_net_id,
 	.size = sizeof(struct nfsd_net),
 };
@@ -1154,16 +1197,10 @@ static int __init init_nfsd(void)
 	retval = nfsd_reply_cache_init();
 	if (retval)
 		goto out_free_stat;
-	retval = nfsd_export_init();
-	if (retval)
-		goto out_free_cache;
 	nfsd_lockd_init();	/* lockd->nfsd callbacks */
-	retval = nfsd_idmap_init();
-	if (retval)
-		goto out_free_lockd;
 	retval = create_proc_exports_entry();
 	if (retval)
-		goto out_free_idmap;
+		goto out_free_lockd;
 	retval = register_filesystem(&nfsd_fs_type);
 	if (retval)
 		goto out_free_all;
@@ -1171,12 +1208,8 @@ static int __init init_nfsd(void)
 out_free_all:
 	remove_proc_entry("fs/nfs/exports", NULL);
 	remove_proc_entry("fs/nfs", NULL);
-out_free_idmap:
-	nfsd_idmap_shutdown();
 out_free_lockd:
 	nfsd_lockd_shutdown();
-	nfsd_export_shutdown();
-out_free_cache:
 	nfsd_reply_cache_shutdown();
 out_free_stat:
 	nfsd_stat_shutdown();
@@ -1192,13 +1225,11 @@ out_unregister_notifier:
 
 static void __exit exit_nfsd(void)
 {
-	nfsd_export_shutdown();
 	nfsd_reply_cache_shutdown();
 	remove_proc_entry("fs/nfs/exports", NULL);
 	remove_proc_entry("fs/nfs", NULL);
 	nfsd_stat_shutdown();
 	nfsd_lockd_shutdown();
-	nfsd_idmap_shutdown();
 	nfsd4_free_slabs();
 	nfsd_fault_inject_cleanup();
 	unregister_filesystem(&nfsd_fs_type);