NFS: Add nfs4_sequence calls for RELEASE_LOCKOWNER

Ensure RELEASE_LOCKOWNER is not emitted while the transport is
plugged.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6807e9b8b593..5ad48f0ce841 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5725,8 +5725,23 @@ struct nfs_release_lockowner_data {
         struct nfs4_lock_state *lsp;
         struct nfs_server *server;
         struct nfs_release_lockowner_args args;
+        struct nfs4_sequence_args seq_args;
+        struct nfs4_sequence_res seq_res;
 };
 
+static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata)
+{
+        struct nfs_release_lockowner_data *data = calldata;
+        nfs40_setup_sequence(data->server,
+                                &data->seq_args, &data->seq_res, task);
+}
+
+static void nfs4_release_lockowner_done(struct rpc_task *task, void *calldata)
+{
+        struct nfs_release_lockowner_data *data = calldata;
+        nfs40_sequence_done(task, &data->seq_res);
+}
+
 static void nfs4_release_lockowner_release(void *calldata)
 {
         struct nfs_release_lockowner_data *data = calldata;
@@ -5735,6 +5750,8 @@ static void nfs4_release_lockowner_release(void *calldata)
 }
 
 static const struct rpc_call_ops nfs4_release_lockowner_ops = {
+        .rpc_call_prepare = nfs4_release_lockowner_prepare,
+        .rpc_call_done = nfs4_release_lockowner_done,
         .rpc_release = nfs4_release_lockowner_release,
 };
 
@@ -5747,14 +5764,17 @@ static int nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_st
 
         if (server->nfs_client->cl_mvops->minor_version != 0)
                 return -EINVAL;
+
         data = kmalloc(sizeof(*data), GFP_NOFS);
         if (!data)
                 return -ENOMEM;
+        nfs4_init_sequence(&data->seq_args, &data->seq_res, 0);
         data->lsp = lsp;
         data->server = server;
         data->args.lock_owner.clientid = server->nfs_client->cl_clientid;
         data->args.lock_owner.id = lsp->ls_seqid.owner_id;
         data->args.lock_owner.s_dev = server->s_dev;
+
         msg.rpc_argp = &data->args;
         rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, data);
         return 0;