sunrpc: exit_net cleanup check added

vaverin · amschuma-ntap · commit 4112be70becb · 2017-11-17T16:43:50.000-05:00
Be sure that all_clients list initialized in net_init hook was return
to initial state.

Signed-off-by: Vasily Averin &lt;vvs@virtuozzo.com&gt;
Signed-off-by: Anna Schumaker &lt;Anna.Schumaker@Netapp.com&gt;
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
@@ -65,10 +65,13 @@ static __net_init int sunrpc_init_net(struct net *net)
 
 static __net_exit void sunrpc_exit_net(struct net *net)
 {
+	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
 	rpc_pipefs_exit_net(net);
 	unix_gid_cache_destroy(net);
 	ip_map_cache_destroy(net);
 	rpc_proc_exit(net);
+	WARN_ON_ONCE(!list_empty(&sn->all_clients));
 }
 
 static struct pernet_operations sunrpc_net_ops = {

Original file line number	Diff line number	Diff line change
`@@ -65,10 +65,13 @@ static __net_init int sunrpc_init_net(struct net *net)`
`65`	`65`
`66`	`66`	`static __net_exit void sunrpc_exit_net(struct net *net)`
`67`	`67`	`{`
	`68`	`+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);`
	`69`	`+`
`68`	`70`	`rpc_pipefs_exit_net(net);`
`69`	`71`	`unix_gid_cache_destroy(net);`
`70`	`72`	`ip_map_cache_destroy(net);`
`71`	`73`	`rpc_proc_exit(net);`
	`74`	`+ WARN_ON_ONCE(!list_empty(&sn->all_clients));`
`72`	`75`	`}`
`73`	`76`
`74`	`77`	`static struct pernet_operations sunrpc_net_ops = {`