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xprtrdma: Add trace points in the client-side backchannel code paths

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Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
This commit is contained in:
Chuck Lever 2017-12-20 16:31:37 -05:00 • committed by Anna Schumaker
commit fc1eb8076f
3 changed files with 73 additions and 5 deletions
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8
net/sunrpc/xprtrdma/backchannel.c
View file

@ -140,7 +140,7 @@ int xprt_rdma_bc_setup(struct rpc_xprt *xprt, unsigned int reqs)
buffer->rb_bc_srv_max_requests = reqs;
request_module("svcrdma");
trace_xprtrdma_cb_setup(r_xprt, reqs);
return 0;
out_free:
@ -212,6 +212,8 @@ static int rpcrdma_bc_marshal_reply(struct rpc_rqst *rqst)
if (rpcrdma_prepare_send_sges(r_xprt, req, RPCRDMA_HDRLEN_MIN,
&rqst->rq_snd_buf, rpcrdma_noch))
return -EIO;
trace_xprtrdma_cb_reply(rqst);
return 0;
}
@ -331,7 +333,6 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
struct rpc_rqst, rq_bc_pa_list);
list_del(&rqst->rq_bc_pa_list);
spin_unlock(&xprt->bc_pa_lock);
dprintk("RPC: %s: using rqst %p\n", __func__, rqst);
/* Prepare rqst */
rqst->rq_reply_bytes_recvd = 0;
@ -352,9 +353,8 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
* the Upper Layer is done decoding it.
*/
req = rpcr_to_rdmar(rqst);
dprintk("RPC: %s: attaching rep %p to req %p\n",
__func__, rep, req);
req->rl_reply = rep;
trace_xprtrdma_cb_call(rqst);
/* Queue rqst for ULP's callback service */
bc_serv = xprt->bc_serv;

2
net/sunrpc/xprtrdma/xprt_rdma.h
View file

@ -365,7 +365,7 @@ rpcrdma_set_xprtdata(struct rpc_rqst *rqst, struct rpcrdma_req *req)
}
static inline struct rpcrdma_req *
rpcr_to_rdmar(struct rpc_rqst *rqst)
rpcr_to_rdmar(const struct rpc_rqst *rqst)
{
return rqst->rq_xprtdata;
}