[PATCH 1/1] NFSv4.1: don't retry BIND_CONN_TO_SESSION on session error

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From: Olga Kornievskaia <kolga@xxxxxxxxxx>

There is no reason to retry the operation if a session error had
occurred in such case result structure isn't filled out.

Fixes: dff58530c4ca ("NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION")
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
 Documentation/admin-guide/kernel-parameters.txt | 9 ++++++++-
 fs/nfs/nfs4proc.c                               | 1 +
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f5a27f067db9..cdef24eef648 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5639,7 +5639,7 @@
 			pernode	    one pool for each NUMA node (equivalent
 				    to global on non-NUMA machines)
 
-	sunrpc.tcp_slot_table_entries=
+	sunrpc.max_tcp_slot_table_entries=
 	sunrpc.udp_slot_table_entries=
 			[NFS,SUNRPC]
 			Sets the upper limit on the number of simultaneous
@@ -5648,6 +5648,13 @@
 			improve throughput, but will also increase the
 			amount of memory reserved for use by the client.
 
+	sunrpc.tcp_slot_table_entries=
+			[NFS,SUNRPC]
+			Sets the minimum limit on the number of simultaneous
+			RPC calls that can be sent from the client to a
+			server. RPC session table then would dynamically grow
+			until it reaches the max_tcp_slot_table_entries.
+
 	suspend.pm_test_delay=
 			[SUSPEND]
 			Sets the number of seconds to remain in a suspend test
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index dd7a4c2a3f05..e3f5b380cefe 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8340,6 +8340,7 @@ nfs4_bind_one_conn_to_session_done(struct rpc_task *task, void *calldata)
 	case -NFS4ERR_DEADSESSION:
 		nfs4_schedule_session_recovery(clp->cl_session,
 				task->tk_status);
+		return;
 	}
 	if (args->dir == NFS4_CDFC4_FORE_OR_BOTH &&
 			res->dir != NFS4_CDFS4_BOTH) {
-- 
2.27.0




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