This is a note to let you know that I've just added the patch titled svcrdma: disable timeouts on rdma backchannel to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: svcrdma-disable-timeouts-on-rdma-backchannel.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 6820bf77864d5894ff67b5c00d7dba8f92011e3d Mon Sep 17 00:00:00 2001 From: Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx> Date: Tue, 23 Feb 2021 00:36:19 +0100 Subject: svcrdma: disable timeouts on rdma backchannel From: Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxx> Fixes: 5d252f90a800 ("svcrdma: Add class for RDMA backwards direction transport") Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -285,9 +285,9 @@ 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->ops = &xprt_rdma_bc_procs; Patches currently in stable-queue which might be from timo@xxxxxxxxxxxxxxxx are queue-5.4/svcrdma-disable-timeouts-on-rdma-backchannel.patch