linux-kernel - [PATCH 4.14 19/43] svcrdma: disable timeouts on rdma backchannel

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Message-Id: <20210322121920.660488554@linuxfoundation.org>
Date:   Mon, 22 Mar 2021 13:29:00 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Timo Rothenpieler <timo@...henpieler.org>,
        Chuck Lever <chuck.lever@...cle.com>
Subject: [PATCH 4.14 19/43] svcrdma: disable timeouts on rdma backchannel

From: Timo Rothenpieler <timo@...henpieler.org>

commit 6820bf77864d5894ff67b5c00d7dba8f92011e3d upstream.

This brings it in line with the regular tcp backchannel, which also has
all those timeouts disabled.

Prevents the backchannel from timing out, getting some async operations
like server side copying getting stuck indefinitely on the client side.

Signed-off-by: Timo Rothenpieler <timo@...henpieler.org>
Fixes: 5d252f90a800 ("svcrdma: Add class for RDMA backwards direction transport")
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/sunrpc/xprtrdma/svc_rdma_backchannel.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
@@ -321,9 +321,9 @@ xprt_setup_rdma_bc(struct xprt_create *a
 	xprt->timeout = &xprt_rdma_bc_timeout;
 	xprt_set_bound(xprt);
 	xprt_set_connected(xprt);
-	xprt->bind_timeout = RPCRDMA_BIND_TO;
-	xprt->reestablish_timeout = RPCRDMA_INIT_REEST_TO;
-	xprt->idle_timeout = RPCRDMA_IDLE_DISC_TO;
+	xprt->bind_timeout = 0;
+	xprt->reestablish_timeout = 0;
+	xprt->idle_timeout = 0;
 
 	xprt->prot = XPRT_TRANSPORT_BC_RDMA;
 	xprt->tsh_size = RPCRDMA_HDRLEN_MIN / sizeof(__be32);