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xprtrdma: Instrument allocation/release of rpcrdma_req/rep objects

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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 16:31:53 -05:00 • committed by Anna Schumaker
commit ae72467625
3 changed files with 74 additions and 9 deletions
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12
net/sunrpc/xprtrdma/transport.c
View file

@ -640,7 +640,7 @@ xprt_rdma_allocate(struct rpc_task *task)
req = rpcrdma_buffer_get(&r_xprt->rx_buf);
if (req == NULL)
return -ENOMEM;
goto out_get;
flags = RPCRDMA_DEF_GFP;
if (RPC_IS_SWAPPER(task))
@ -653,19 +653,18 @@ xprt_rdma_allocate(struct rpc_task *task)
if (!rpcrdma_get_recvbuf(r_xprt, req, rqst->rq_rcvsize, flags))
goto out_fail;
dprintk("RPC: %5u %s: send size = %zd, recv size = %zd, req = %p\n",
task->tk_pid, __func__, rqst->rq_callsize,
rqst->rq_rcvsize, req);
req->rl_cpu = smp_processor_id();
req->rl_connect_cookie = 0; /* our reserved value */
rpcrdma_set_xprtdata(rqst, req);
rqst->rq_buffer = req->rl_sendbuf->rg_base;
rqst->rq_rbuffer = req->rl_recvbuf->rg_base;
trace_xprtrdma_allocate(task, req);
return 0;
out_fail:
rpcrdma_buffer_put(req);
out_get:
trace_xprtrdma_allocate(task, NULL);
return -ENOMEM;
}
@ -682,10 +681,9 @@ xprt_rdma_free(struct rpc_task *task)
struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(rqst->rq_xprt);
struct rpcrdma_req *req = rpcr_to_rdmar(rqst);
dprintk("RPC: %s: called on 0x%p\n", __func__, req->rl_reply);
if (test_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags))
rpcrdma_release_rqst(r_xprt, req);
trace_xprtrdma_rpc_done(task, req);
rpcrdma_buffer_put(req);
}

4
net/sunrpc/xprtrdma/verbs.c
View file

@ -1385,11 +1385,11 @@ rpcrdma_buffer_get(struct rpcrdma_buffer *buffers)
req = rpcrdma_buffer_get_req_locked(buffers);
req->rl_reply = rpcrdma_buffer_get_rep(buffers);
spin_unlock(&buffers->rb_lock);
return req;
out_reqbuf:
spin_unlock(&buffers->rb_lock);
pr_warn("RPC: %s: out of request buffers\n", __func__);
return NULL;
}
@ -1612,7 +1612,7 @@ rpcrdma_ep_post_extra_recv(struct rpcrdma_xprt *r_xprt, unsigned int count)
out_reqbuf:
spin_unlock(&buffers->rb_lock);
pr_warn("%s: no extra receive buffers\n", __func__);
trace_xprtrdma_noreps(r_xprt);
return -ENOMEM;
out_rc: