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| author | Chuck Lever <chuck.lever@oracle.com> | 2014-07-16 15:38:32 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2014-07-18 11:35:45 -0400 |
| commit | 3c45ddf823d679a820adddd53b52c6699c9a05ac (patch) | |
| tree | ca52538cb038660181621282d82cf5ff54f8d8e6 /mm/failslab.c | |
| parent | 5d6031ca742f9f07b9c9d9322538619f3bd155ac (diff) | |
| download | blackbird-op-linux-3c45ddf823d679a820adddd53b52c6699c9a05ac.tar.gz blackbird-op-linux-3c45ddf823d679a820adddd53b52c6699c9a05ac.zip | |
svcrdma: Select NFSv4.1 backchannel transport based on forward channel
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>
Diffstat (limited to 'mm/failslab.c')
0 files changed, 0 insertions, 0 deletions
