[PATCH v3 07/21] nfs4blocklayout: exit_net cleanup check added
From: Vasily Averin <hidden>
Date: 2017-11-06 13:24:14
Also in:
linux-nfs
Subsystem:
filesystems (vfs and infrastructure), nfs, sunrpc, and lockd clients, the rest · Maintainers:
Alexander Viro, Christian Brauner, Trond Myklebust, Anna Schumaker, Linus Torvalds
Be sure that bl_wq wait queue initialized in net_init hook is not used anymore. Signed-off-by: Vasily Averin <redacted> --- fs/nfs/blocklayout/rpc_pipefs.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/nfs/blocklayout/rpc_pipefs.c b/fs/nfs/blocklayout/rpc_pipefs.c
index 9fb067a6..8c3941b 100644
--- a/fs/nfs/blocklayout/rpc_pipefs.c
+++ b/fs/nfs/blocklayout/rpc_pipefs.c@@ -256,6 +256,9 @@ 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_ONCE(!list_empty(&nn->bl_wq.head), + "net %x %s: bl_wq head is not empty\n", + net->ns.inum, __func__); } static struct pernet_operations nfs4blocklayout_net_ops = {
--
2.7.4
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