From patchwork Mon Sep 20 16:43:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Schoenebeck X-Patchwork-Id: 12506079 X-Patchwork-Delegate: kuba@kernel.org 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 C7E45C433EF for ; Mon, 20 Sep 2021 18:09:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B616A613D2 for ; Mon, 20 Sep 2021 18:09:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350902AbhITSKy (ORCPT ); Mon, 20 Sep 2021 14:10:54 -0400 Received: from lizzy.crudebyte.com ([91.194.90.13]:44745 "EHLO lizzy.crudebyte.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359287AbhITSJ2 (ORCPT ); Mon, 20 Sep 2021 14:09:28 -0400 X-Greylist: delayed 3266 seconds by postgrey-1.27 at vger.kernel.org; Mon, 20 Sep 2021 14:09:27 EDT DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=crudebyte.com; s=lizzy; h=Cc:To:Subject:Date:From:References:In-Reply-To: Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Content-ID: Content-Description; bh=Cqx/q/n6hrY5Ps1ipX2QJFZ34qH2P2+3lxddoYfsBeQ=; b=C8DWS nm5XFVvn+wcj0ASjGzbv+8lAnVOswP9JUiYGrqKEZl7EofbEDrjquCBK+LHg/qnxMkpyerTD8gljt w0iq+go39AzEL+FG7nw1GnOgkky1be3NVLIaBd3I1j5UKpe1jzArU8fipKWl4uesW88w8kV7WiweR wPQ4YzUWyya/YR55ZWDPncRHaPkqHLFpZs9Jb0yeCBLdx5TwuwSEKFDIIN4lPDtBcbvDuVhmD3iJO SJbMl/FC9hCQhKPiWgjcmKxMyJZFI+qChrSjiD2loWn5L4tSZ5eWjs3FIDPh7ZtAtdeIFVlUjal4p gduFM2dwt1PwABBh1UtKDroLCPs7g==; Message-Id: In-Reply-To: References: From: Christian Schoenebeck Date: Mon, 20 Sep 2021 18:43:34 +0200 Subject: [PATCH v2 1/7] net/9p: show error message if user 'msize' cannot be satisfied To: v9fs-developer@lists.sourceforge.net Cc: netdev@vger.kernel.org, Dominique Martinet , Eric Van Hensbergen , Latchesar Ionkov , Greg Kurz , Vivek Goyal Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org If user supplied a large value with the 'msize' option, then client would silently limit that 'msize' value to the maximum value supported by transport. That's a bit confusing for users of not having any indication why the preferred 'msize' value could not be satisfied. Reported-by: Vivek Goyal Signed-off-by: Christian Schoenebeck --- net/9p/client.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/9p/client.c b/net/9p/client.c index 213f12ed76cd..4f4fd2098a30 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1044,8 +1044,13 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) if (err) goto put_trans; - if (clnt->msize > clnt->trans_mod->maxsize) + if (clnt->msize > clnt->trans_mod->maxsize) { clnt->msize = clnt->trans_mod->maxsize; + pr_info("Limiting 'msize' to %d as this is the maximum " + "supported by transport %s\n", + clnt->msize, clnt->trans_mod->name + ); + } if (clnt->msize < 4096) { p9_debug(P9_DEBUG_ERROR,