From patchwork Mon Apr 19 18:02:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever III X-Patchwork-Id: 12212411 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA2FFC433B4 for ; Mon, 19 Apr 2021 18:02:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDB3A61107 for ; Mon, 19 Apr 2021 18:02:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240488AbhDSSCs (ORCPT ); Mon, 19 Apr 2021 14:02:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:40922 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240433AbhDSSCr (ORCPT ); Mon, 19 Apr 2021 14:02:47 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1849061107; Mon, 19 Apr 2021 18:02:17 +0000 (UTC) Subject: [PATCH v3 06/26] xprtrdma: Put flushed Receives on free list instead of destroying them From: Chuck Lever To: trondmy@hammerspace.com Cc: linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org Date: Mon, 19 Apr 2021 14:02:16 -0400 Message-ID: <161885533627.38598.12133596202333658270.stgit@manet.1015granger.net> In-Reply-To: <161885481568.38598.16682844600209775665.stgit@manet.1015granger.net> References: <161885481568.38598.16682844600209775665.stgit@manet.1015granger.net> User-Agent: StGit/0.23-29-ga622f1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Defer destruction of an rpcrdma_rep until transport tear-down to preserve the rb_all_reps list while Receives flush. Signed-off-by: Chuck Lever Reviewed-by: Tom Talpey --- net/sunrpc/xprtrdma/verbs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index d8ed69442219..1b599a623eea 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -80,6 +80,8 @@ static void rpcrdma_sendctx_put_locked(struct rpcrdma_xprt *r_xprt, struct rpcrdma_sendctx *sc); static int rpcrdma_reqs_setup(struct rpcrdma_xprt *r_xprt); static void rpcrdma_reqs_reset(struct rpcrdma_xprt *r_xprt); +static void rpcrdma_rep_put(struct rpcrdma_buffer *buf, + struct rpcrdma_rep *rep); static void rpcrdma_rep_destroy(struct rpcrdma_rep *rep); static void rpcrdma_reps_unmap(struct rpcrdma_xprt *r_xprt); static void rpcrdma_mrs_create(struct rpcrdma_xprt *r_xprt); @@ -211,7 +213,7 @@ static void rpcrdma_wc_receive(struct ib_cq *cq, struct ib_wc *wc) out_flushed: rpcrdma_flush_disconnect(r_xprt, wc); - rpcrdma_rep_destroy(rep); + rpcrdma_rep_put(&r_xprt->rx_buf, rep); } static void rpcrdma_update_cm_private(struct rpcrdma_ep *ep,