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From:   Benjamin Coddington <bcodding@redhat.com>
To:     linux-nfs@vger.kernel.org
Subject: [PATCH 9/9] NFSv4: Clean up some shutdown loops
Date:   Fri, 21 Apr 2023 13:08:12 -0400
Message-Id: <84e78ef0afd919a5fbebbbc2b670f447c264b436.1682096307.git.bcodding@redhat.com>
In-Reply-To: <cover.1682096307.git.bcodding@redhat.com>
References: <cover.1682096307.git.bcodding@redhat.com>
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If a SEQUENCE call receives -EIO for a shutdown client, it will retry the
RPC call.  Instead of doing that for a shutdown client, just bail out.

Likewise, if the state manager decides to perform recovery for a shutdown
client, it will continuously retry.  As above, just bail out.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
---
 fs/nfs/nfs4proc.c  | 2 +-
 fs/nfs/nfs4state.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 40d749f29ed3..a36e35d885c3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -9357,7 +9357,7 @@ static void nfs41_sequence_call_done(struct rpc_task *task, void *data)
 		return;
 
 	trace_nfs4_sequence(clp, task->tk_status);
-	if (task->tk_status < 0) {
+	if (task->tk_status < 0 && !task->tk_client->cl_shutdown) {
 		dprintk("%s ERROR %d\n", __func__, task->tk_status);
 		if (refcount_read(&clp->cl_count) == 1)
 			return;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f8afd75e520d..039a3b4ae565 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1206,6 +1206,9 @@ void nfs4_schedule_state_manager(struct nfs_client *clp)
 	struct task_struct *task;
 	char buf[INET6_ADDRSTRLEN + sizeof("-manager") + 1];
 
+	if (clp->cl_rpcclient->cl_shutdown)
+		return;
+
 	set_bit(NFS4CLNT_RUN_MANAGER, &clp->cl_state);
 	if (test_and_set_bit(NFS4CLNT_MANAGER_AVAILABLE, &clp->cl_state) != 0) {
 		wake_up_var(&clp->cl_state);
-- 
2.39.2