From nobody Wed Sep 17 15:55:46 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B277C4332F for ; Sun, 18 Dec 2022 23:23:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230419AbiLRXXM (ORCPT ); Sun, 18 Dec 2022 18:23:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50492 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230470AbiLRXW7 (ORCPT ); Sun, 18 Dec 2022 18:22:59 -0500 Received: from ms11p00im-qufo17281301.me.com (ms11p00im-qufo17281301.me.com [17.58.38.50]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70DACBCA0 for ; Sun, 18 Dec 2022 15:22:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; t=1671405776; bh=rgdJQ00HlDR3n1V78o02Qz8Qw2vR4vsNwWkDiooEv3U=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=0IC6x3I7tC2dhIsfNw+doBy2YcsYehrUaei/sIqDeCjO0aY1eSPUCVdQHTqklamq3 EaAWOhfBDjtgxE8MlZahSA1x6LmQ6gDZlirhMxcJlaCWBOGgFG27ZFYfK8M2y4Fjfr S81VQRwtjuP6kSdI2jqP4u5l/uSiQPUqg/J3gqo6kzLbL+BuWfr29zfmvVAjLW11+h w2patQyiwA61qJUhyIS1x9I+3zSQWzXgRxAsc4O8qYMsgl9xSAa8lM4F3NbRNnxIhA n3SPbShWko1bv/MXvOKQlJmjru5Hf5mehxM3ZSEihwt1BG2VQYMITdOniQxOpQ9q1V a3CzYHs9QthFg== Received: from thundercleese.localdomain (ms11p00im-dlb-asmtpmailmevip.me.com [17.57.154.19]) by ms11p00im-qufo17281301.me.com (Postfix) with ESMTPSA id C5C46CC036F; Sun, 18 Dec 2022 23:22:55 +0000 (UTC) From: Eric Van Hensbergen To: v9fs-developer@lists.sourceforge.net, asmadeus@codewreck.org, rminnich@gmail.com, lucho@ionkov.net Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux_oss@crudebyte.com, Eric Van Hensbergen Subject: [PATCH v2 01/10] Adjust maximum MSIZE to account for p9 header Date: Sun, 18 Dec 2022 23:22:09 +0000 Message-Id: <20221218232217.1713283-2-evanhensbergen@icloud.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221218232217.1713283-1-evanhensbergen@icloud.com> References: <20221217183142.1425132-1-evanhensbergen@icloud.com> <20221218232217.1713283-1-evanhensbergen@icloud.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: Mws2nVIwpl5zapwvrA8abhdMpb2AhyYp X-Proofpoint-GUID: Mws2nVIwpl5zapwvrA8abhdMpb2AhyYp X-Proofpoint-Virus-Version: =?UTF-8?Q?vendor=3Dfsecure_engine=3D1.1.170-22c6f66c430a71ce266a39bfe25bc?= =?UTF-8?Q?2903e8d5c8f:6.0.425,18.0.572,17.11.62.513.0000000_definitions?= =?UTF-8?Q?=3D2022-01-14=5F01:2022-01-14=5F01,2020-02-14=5F11,2021-12-02?= =?UTF-8?Q?=5F01_signatures=3D0?= X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1015 mlxscore=0 spamscore=0 adultscore=0 bulkscore=0 malwarescore=0 mlxlogscore=610 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2212180222 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add maximum p9 header size to MSIZE to make sure we can have page aligned data. Signed-off-by: Eric Van Hensbergen --- net/9p/client.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/9p/client.c b/net/9p/client.c index fef6516a0639..f982d36b55b8 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -28,7 +28,11 @@ #define CREATE_TRACE_POINTS #include =20 -#define DEFAULT_MSIZE (128 * 1024) +/* DEFAULT MSIZE =3D 32 pages worth of payload + P9_HDRSZ + + * room for write (16 extra) or read (11 extra) operands. + */ + +#define DEFAULT_MSIZE ((128 * 1024) + P9_IOHDRSZ) =20 /* Client Option Parsing (code inspired by NFS code) * - a little lazy - parse all client options base-commit: b7b275e60bcd5f89771e865a8239325f86d9927d prerequisite-patch-id: 031bd397a760838e416ddba75243269ce906c368 prerequisite-patch-id: cf70b974aff8376ea1bbb41d2606ec93609eecf0 prerequisite-patch-id: 91046bd699f2be9a4c9c9bf317693039a4374fbe prerequisite-patch-id: 28c9dc76bc302670a661fef2c4807d77038ca054 prerequisite-patch-id: 9e6a0ffb4d37f179b3ef3b920d883a464c5c3083 prerequisite-patch-id: f1ef66e1bee57cf76948e8d7d6eca9ef5c335b0e prerequisite-patch-id: a8342a621d33c26f9347d46c52f076d41d61a946 prerequisite-patch-id: 9117d73d5265a507d68acce493d7f7e623f7a6b0 --=20 2.37.2