summaryrefslogtreecommitdiffstats
path: root/include/linux/sunrpc
diff options
context:
space:
mode:
authorChuck Lever <chuck.lever@oracle.com>2014-07-16 15:38:32 -0400
committerJ. Bruce Fields <bfields@redhat.com>2014-07-18 11:35:45 -0400
commit3c45ddf823d679a820adddd53b52c6699c9a05ac (patch)
treeca52538cb038660181621282d82cf5ff54f8d8e6 /include/linux/sunrpc
parent5d6031ca742f9f07b9c9d9322538619f3bd155ac (diff)
downloadop-kernel-dev-3c45ddf823d679a820adddd53b52c6699c9a05ac.zip
op-kernel-dev-3c45ddf823d679a820adddd53b52c6699c9a05ac.tar.gz
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 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/svc_xprt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 7235040..5d9d6f8 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -33,6 +33,7 @@ struct svc_xprt_class {
struct svc_xprt_ops *xcl_ops;
struct list_head xcl_list;
u32 xcl_max_payload;
+ int xcl_ident;
};
/*
OpenPOWER on IntegriCloud