From patchwork Mon Mar 29 07:57:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 412807 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 30313C433E4 for ; Mon, 29 Mar 2021 08:03:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0615B61999 for ; Mon, 29 Mar 2021 08:03:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231946AbhC2IC4 (ORCPT ); Mon, 29 Mar 2021 04:02:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:44678 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231736AbhC2ICb (ORCPT ); Mon, 29 Mar 2021 04:02:31 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 72AFE61976; Mon, 29 Mar 2021 08:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617004951; bh=O+bGaQbgppl7EBlZBXLS8rnc8WcSz3t4LTbgzH+Wb1s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lzpqIcmBN9/KbZjJD8C10EGlq3Bu4iAPPrikGA0jNFPnNHnbZ9LkMjmH8JBYDhRtp Y5wdrrOZvuEiJpQPfOmxGKjvNbULzXF+E9HlP5C4+XJTbXC+WtJ6ZbePdVE0qLAlW/ 1fltkAFX+q52mz8KfBI+hMr4x9dd/fk6+ftPuptM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Frank Sorenson , Anna Schumaker , Sasha Levin Subject: [PATCH 4.9 09/53] NFS: Correct size calculation for create reply length Date: Mon, 29 Mar 2021 09:57:44 +0200 Message-Id: <20210329075607.858323142@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210329075607.561619583@linuxfoundation.org> References: <20210329075607.561619583@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Frank Sorenson [ Upstream commit ad3dbe35c833c2d4d0bbf3f04c785d32f931e7c9 ] CREATE requests return a post_op_fh3, rather than nfs_fh3. The post_op_fh3 includes an extra word to indicate 'handle_follows'. Without that additional word, create fails when full 64-byte filehandles are in use. Add NFS3_post_op_fh_sz, and correct the size calculation for NFS3_createres_sz. Signed-off-by: Frank Sorenson Signed-off-by: Anna Schumaker Signed-off-by: Sasha Levin --- fs/nfs/nfs3xdr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index 267126d32ec0..4a68837e92ea 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -33,6 +33,7 @@ */ #define NFS3_fhandle_sz (1+16) #define NFS3_fh_sz (NFS3_fhandle_sz) /* shorthand */ +#define NFS3_post_op_fh_sz (1+NFS3_fh_sz) #define NFS3_sattr_sz (15) #define NFS3_filename_sz (1+(NFS3_MAXNAMLEN>>2)) #define NFS3_path_sz (1+(NFS3_MAXPATHLEN>>2)) @@ -70,7 +71,7 @@ #define NFS3_readlinkres_sz (1+NFS3_post_op_attr_sz+1) #define NFS3_readres_sz (1+NFS3_post_op_attr_sz+3) #define NFS3_writeres_sz (1+NFS3_wcc_data_sz+4) -#define NFS3_createres_sz (1+NFS3_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) +#define NFS3_createres_sz (1+NFS3_post_op_fh_sz+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) #define NFS3_renameres_sz (1+(2 * NFS3_wcc_data_sz)) #define NFS3_linkres_sz (1+NFS3_post_op_attr_sz+NFS3_wcc_data_sz) #define NFS3_readdirres_sz (1+NFS3_post_op_attr_sz+2)