From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 CBCF1C06511 for ; Tue, 2 Jul 2019 08:15:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AE1D20645 for ; Tue, 2 Jul 2019 08:15:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562055304; bh=ijfRFNudNt6gcC/ZB42/IFRdWJsCcN6ooB7nGYSw32k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ZzkAWoWbosLXrttoR03ry13VucIgdOQpgJ/Zfud1U6oAddfWkZMdKrSW1XIboxWN4 +pnr0cCp7NjJlwcQKS1Rc3pmFYyl22+U2Zc31a4whUW2IyBoYM/uMW5s8o1pexi1Fu eYn0OFx1Krcc9x0qo/STQhrRPZpQEDKFu2/bou+I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727925AbfGBIFY (ORCPT ); Tue, 2 Jul 2019 04:05:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:51404 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727443AbfGBIFX (ORCPT ); Tue, 2 Jul 2019 04:05:23 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 238AE2186A; Tue, 2 Jul 2019 08:05:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562054722; bh=ijfRFNudNt6gcC/ZB42/IFRdWJsCcN6ooB7nGYSw32k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xyrBrbk70HURHqMpk4LcwtOIjyZ/9YeP1sodXYMbVx7vJyKYjHzEMrAclIOkY+kXz w5ozZYjksIDMgqNPwyZaSptWgQWN45tdic6ADzeiWiECbYmiebYIj0uenoB2ku0zYj mW+/PWCLFnqsQ5TxGmJ0s9edRdEcWAUsK5elfmdw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dominique Martinet , Sasha Levin Subject: [PATCH 4.19 13/72] 9p/rdma: do not disconnect on down_interruptible EAGAIN Date: Tue, 2 Jul 2019 10:01:14 +0200 Message-Id: <20190702080125.280686495@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190702080124.564652899@linuxfoundation.org> References: <20190702080124.564652899@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 8b894adb2b7e1d1e64b8954569c761eaf3d51ab5 ] 9p/rdma would sometimes drop the connection and display errors in recv_done when the user does ^C. The errors were caused by recv buffers that were posted at the time of disconnect, and we just do not want to disconnect when down_interruptible is... interrupted. Link: http://lkml.kernel.org/r/1535625307-18019-1-git-send-email-asmadeus@codewreck.org Signed-off-by: Dominique Martinet Signed-off-by: Sasha Levin --- net/9p/trans_rdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c index 9cc9b3a19ee7..9719bc4d9424 100644 --- a/net/9p/trans_rdma.c +++ b/net/9p/trans_rdma.c @@ -477,7 +477,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req) err = post_recv(client, rpl_context); if (err) { - p9_debug(P9_DEBUG_FCALL, "POST RECV failed\n"); + p9_debug(P9_DEBUG_ERROR, "POST RECV failed: %d\n", err); goto recv_error; } /* remove posted receive buffer from request structure */ @@ -546,7 +546,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req) recv_error: kfree(rpl_context); spin_lock_irqsave(&rdma->req_lock, flags); - if (rdma->state < P9_RDMA_CLOSING) { + if (err != -EINTR && rdma->state < P9_RDMA_CLOSING) { rdma->state = P9_RDMA_CLOSING; spin_unlock_irqrestore(&rdma->req_lock, flags); rdma_disconnect(rdma->cm_id); -- 2.20.1