Clean up: The fields in the recv_wr do not vary. There is no need to
initialize them before each ib_post_recv(). This removes a large-ish
data structure from the stack.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/xprtrdma/verbs.c | 13 ++++++-------
net/sunrpc/xprtrdma/xprt_rdma.h | 1 +
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 79a6346..a49c788 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -880,6 +880,10 @@ rpcrdma_create_rep(struct rpcrdma_xprt *r_xprt)
rep->rr_cqe.done = rpcrdma_receive_wc;
rep->rr_rxprt = r_xprt;
INIT_WORK(&rep->rr_work, rpcrdma_receive_worker);
+ rep->rr_recv_wr.next = NULL;
+ rep->rr_recv_wr.wr_cqe = &rep->rr_cqe;
+ rep->rr_recv_wr.sg_list = &rep->rr_rdmabuf->rg_iov;
+ rep->rr_recv_wr.num_sge = 1;
return rep;
out_free:
@@ -1302,17 +1306,12 @@ int
rpcrdma_ep_post_recv(struct rpcrdma_ia *ia,
struct rpcrdma_rep *rep)
{
- struct ib_recv_wr recv_wr, *recv_wr_fail;
+ struct ib_recv_wr *recv_wr_fail;
int rc;
- recv_wr.next = NULL;
- recv_wr.wr_cqe = &rep->rr_cqe;
- recv_wr.sg_list = &rep->rr_rdmabuf->rg_iov;
- recv_wr.num_sge = 1;
-
if (!rpcrdma_dma_map_regbuf(ia, rep->rr_rdmabuf))
goto out_map;
- rc = ib_post_recv(ia->ri_id->qp, &recv_wr, &recv_wr_fail);
+ rc = ib_post_recv(ia->ri_id->qp, &rep->rr_recv_wr, &recv_wr_fail);
if (rc)
goto out_postrecv;
return 0;
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 3c5a89a..9aabca6 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -189,6 +189,7 @@ struct rpcrdma_rep {
struct rpcrdma_xprt *rr_rxprt;
struct work_struct rr_work;
struct list_head rr_list;
+ struct ib_recv_wr rr_recv_wr;
struct rpcrdma_regbuf *rr_rdmabuf;
};
--
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