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c73df6f73c
commit 3c45ddf823d679a820adddd53b52c6699c9a05ac upstream. The current code always selects XPRT_TRANSPORT_BC_TCP for the back channel, even when the forward channel was not TCP (eg, RDMA). When a 4.1 mount is attempted with RDMA, the server panics in the TCP BC code when trying to send CB_NULL. Instead, construct the transport protocol number from the forward channel transport or'd with XPRT_TRANSPORT_BC. Transports that do not support bi-directional RPC will not have registered a "BC" transport, causing create_backchannel_client() to fail immediately. Fixes: https://bugzilla.linux-nfs.org/show_bug.cgi?id=265 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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.. | ||
auth_gss | ||
xprtrdma | ||
addr.c | ||
auth.c | ||
auth_generic.c | ||
auth_null.c | ||
auth_unix.c | ||
backchannel_rqst.c | ||
bc_svc.c | ||
cache.c | ||
clnt.c | ||
Kconfig | ||
Makefile | ||
netns.h | ||
rpc_pipe.c | ||
rpcb_clnt.c | ||
sched.c | ||
socklib.c | ||
stats.c | ||
sunrpc.h | ||
sunrpc_syms.c | ||
svc.c | ||
svc_xprt.c | ||
svcauth.c | ||
svcauth_unix.c | ||
svcsock.c | ||
sysctl.c | ||
timer.c | ||
xdr.c | ||
xprt.c | ||
xprtsock.c |