netdev - [PATCH 21/21] sunrpc: exit_net cleanup check added

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Message-ID: <c450ca1b-67dd-8cef-5cb5-a2dfeaaa793e@virtuozzo.com>
Date:   Sun, 5 Nov 2017 13:02:44 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     netdev@...r.kernel.org
Cc:     linux-nfs@...r.kernel.org,
        Anna Schumaker <anna.schumaker@...app.com>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Jeff Layton <jlayton@...chiereds.net>,
        "J. Bruce Fields" <bfields@...ldses.org>
Subject: [PATCH 21/21] sunrpc: exit_net cleanup check added

Be sure that all_clients list initialized in net_init hook was return
to initial state.

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 net/sunrpc/sunrpc_syms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index c73de18..0c5a90f 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -65,10 +65,14 @@ 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(!list_empty(&sn->all_clients),
+	     "net %p exit: sunrpc all_clients list is not empty\n", net);
 }
 
 static struct pernet_operations sunrpc_net_ops = {
-- 
2.7.4