From patchwork Thu May 11 21:43:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dai Ngo X-Patchwork-Id: 13238474 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 CDC6CC7EE25 for ; Thu, 11 May 2023 21:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239416AbjEKVnk (ORCPT ); Thu, 11 May 2023 17:43:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239299AbjEKVnj (ORCPT ); Thu, 11 May 2023 17:43:39 -0400 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AE62E5; Thu, 11 May 2023 14:43:38 -0700 (PDT) Received: from pps.filterd (m0333520.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34BKwFMP002761; Thu, 11 May 2023 21:43:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2023-03-30; bh=jINMRZDZBJHoWR5YQtm/18BICozjjpvY2luFdSWSeHc=; b=iyGHstWbRgfbxLPXFNTOZi+1MM4Ljwk1kg73Vq1vGCNr4ojEX9+VBHKzf/PD1AhAI8Zv qqt/tsKjNMJnaeJM3ORBR+YpDRvPTfLxQIn9ml+b9Y0JhDUtYPgP7TC2xi3+VgZCBnq4 054wJ6gR5yQhzbXiMuafnPT08pQyG4JkXmJrlBz3A0r0Hk4mwc2XOUqGUHS8eVAQbLzR yWRw8LU+bPWeIEn3pG6cOae096niE/vVh5WwYXdvRI0E01uJmI2Y7Z7a5LMmGL22bENo U85+bfZyB4gSMLvqzblS44epAACX3GD5SukB4WuRN0TBFc2oj2Rt9uMsJfl8l4jJW2Gh 8w== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3qf7758c01-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 May 2023 21:43:35 +0000 Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 34BLdwCf018427; Thu, 11 May 2023 21:43:35 GMT Received: from pps.reinject (localhost [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3qf77kcm7h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 11 May 2023 21:43:35 +0000 Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 34BLhX1Y028893; Thu, 11 May 2023 21:43:34 GMT Received: from ca-common-hq.us.oracle.com (ca-common-hq.us.oracle.com [10.211.9.209]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3qf77kcm6r-2; Thu, 11 May 2023 21:43:34 +0000 From: Dai Ngo To: chuck.lever@oracle.com, jlayton@kernel.org Cc: linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 1/4] locks: allow support for write delegation Date: Thu, 11 May 2023 14:43:00 -0700 Message-Id: <1683841383-21372-2-git-send-email-dai.ngo@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1683841383-21372-1-git-send-email-dai.ngo@oracle.com> References: <1683841383-21372-1-git-send-email-dai.ngo@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-11_17,2023-05-05_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 malwarescore=0 adultscore=0 spamscore=0 mlxscore=0 phishscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305110184 X-Proofpoint-GUID: 0kng8U48dyIyJffs4Uuq_GApE9yGRBSu X-Proofpoint-ORIG-GUID: 0kng8U48dyIyJffs4Uuq_GApE9yGRBSu Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Remove the check for F_WRLCK in generic_add_lease to allow file_lock to be used for write delegation. NFSD is the first consumer. Signed-off-by: Dai Ngo --- fs/locks.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index df8b26a42524..08fb0b4fd4f8 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1729,13 +1729,6 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr if (is_deleg && !inode_trylock(inode)) return -EAGAIN; - if (is_deleg && arg == F_WRLCK) { - /* Write delegations are not currently supported: */ - inode_unlock(inode); - WARN_ON_ONCE(1); - return -EINVAL; - } - percpu_down_read(&file_rwsem); spin_lock(&ctx->flc_lock); time_out_leases(inode, &dispose);