On 5/4/2015 3:17 PM, Chuck Lever wrote:
Hi-
I’ve been experimenting with adding bi-directional RPC/RDMA support
on both the client and server side. The problem is that both modules
need to be loaded before the backchannel transports are registered
and can be used by the upper layers.
If I add a couple of request_module() call sites I get this:
WARNING: Module /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/xprtrdma.ko ignored, due to loop
WARNING: Loop detected: /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/svcrdma.ko needs xprtrdma.ko which needs svcrdma.ko again!
WARNING: Module /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/svcrdma.ko ignored, due to loop
Installing kernel boot image ...
Constructing initramdisk ...
ERROR: modinfo: could not find module svcrdma
This isn’t a problem for TCP because both client and server side
TCP socket support are built into the sunrpc.ko module. The client and
server RDMA transport support are in separate modules.
A straightforward way to address this would be to combine xprtrdma.ko
with svcrdma.ko. Any thoughts on this approach?
I think it's long overdue, go for it. In the end, it will reduce
overall code.
Tom.
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