Return-Path: Received: from mail-io0-f195.google.com ([209.85.223.195]:35405 "EHLO mail-io0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932182AbcHOUwK (ORCPT ); Mon, 15 Aug 2016 16:52:10 -0400 Subject: [PATCH v1 14/22] xprtrdma: Move recv_wr to struct rpcrdma_rep From: Chuck Lever To: linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org Date: Mon, 15 Aug 2016 16:52:08 -0400 Message-ID: <20160815205208.11652.92720.stgit@manet.1015granger.net> In-Reply-To: <20160815195649.11652.32252.stgit@manet.1015granger.net> References: <20160815195649.11652.32252.stgit@manet.1015granger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: 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 --- 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 d5e88ee..edc81ac 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -879,6 +879,10 @@ 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: @@ -1283,17 +1287,12 @@ 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 73e3345..b8d0dea 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; };