netdev - [PATCH 05/21] nfs4blocklayout: exit

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Date:   Sun, 5 Nov 2017 12:59:46 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     netdev@...r.kernel.org
Cc:     linux-nfs@...r.kernel.org
Subject: [PATCH 05/21] nfs4blocklayout: exit_net cleanup check added

Be sure that bl_wq wait queue initialized in net_init hook
is not used anymore.

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 fs/nfs/blocklayout/rpc_pipefs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/blocklayout/rpc_pipefs.c b/fs/nfs/blocklayout/rpc_pipefs.c
index 9fb067a6..fb732cf 100644
--- a/fs/nfs/blocklayout/rpc_pipefs.c
+++ b/fs/nfs/blocklayout/rpc_pipefs.c
@@ -256,6 +256,8 @@ static void nfs4blocklayout_net_exit(struct net *net)
 	nfs4blocklayout_unregister_net(net, nn->bl_device_pipe);
 	rpc_destroy_pipe_data(nn->bl_device_pipe);
 	nn->bl_device_pipe = NULL;
+	WARN(!list_empty(&nn->bl_wq.head),
+	     "net %p exit: nfs bl_wq head is not empty\n", net);
 }
 
 static struct pernet_operations nfs4blocklayout_net_ops = {
-- 
2.7.4