[v3,14/22] xprtrdma: Move recv_wr to struct rpcrdma_rep
diff mbox

Message ID 20160915145651.11080.57786.stgit@manet.1015granger.net
State New
Headers show

Commit Message

Chuck Lever Sept. 15, 2016, 2:56 p.m. UTC
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@oracle.com>
---
 net/sunrpc/xprtrdma/verbs.c     |   13 ++++++-------
 net/sunrpc/xprtrdma/xprt_rdma.h |    1 +
 2 files changed, 7 insertions(+), 7 deletions(-)


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Patch
diff mbox

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;
 };