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xprtrdma: The transport should not bug-check when a dup reply is received

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The client side RDMA transport will bug check if it receives a duplicate
reply, instead we should simply drop the duplicate reply.

Signed-off-by: Tom Tucker <tom@ogc.us>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Tom Tucker 2012-02-20 13:07:42 -06:00 committed by Trond Myklebust
parent 18d98f6c04
commit 4a6862b364
1 changed files with 7 additions and 2 deletions
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9
net/sunrpc/xprtrdma/rpc_rdma.c
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@ -771,13 +771,18 @@ rpcrdma_reply_handler(struct rpcrdma_rep *rep)
/* get request object */
req = rpcr_to_rdmar(rqst);
if (req->rl_reply) {
spin_unlock(&xprt->transport_lock);
dprintk("RPC: %s: duplicate reply 0x%p to RPC "
"request 0x%p: xid 0x%08x\n", __func__, rep, req,
headerp->rm_xid);
goto repost;
}
dprintk("RPC: %s: reply 0x%p completes request 0x%p\n"
" RPC request 0x%p xid 0x%08x\n",
__func__, rep, req, rqst, headerp->rm_xid);
BUG_ON(!req || req->rl_reply);
/* from here on, the reply is no longer an orphan */
req->rl_reply = rep;