From patchwork Wed Dec 15 21:59:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Roesch X-Patchwork-Id: 12679557 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 3F5E7C43217 for ; Wed, 15 Dec 2021 21:59:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230333AbhLOV7g (ORCPT ); Wed, 15 Dec 2021 16:59:36 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:31058 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230309AbhLOV7d (ORCPT ); Wed, 15 Dec 2021 16:59:33 -0500 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 1BFLiaHX016148 for ; Wed, 15 Dec 2021 13:59:33 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=Ivgbdb74LSR/ebqtsWhU+W+nyb2uC9VUXrbA16sEIEw=; b=FSzg+QsmEUUhyFtLOgfptKHfVn97kKYKwelr5pjRwjATpnewdSgYe7bTvKbi9KloPoG/ fHpPmNBAa7BXIOvxaE63gXJRDw5kMYabAhCGUwc1vnexN4/st4eCyQjFsyOiYrPs4cP5 33YW9Kv20Y1UdoDfGhbo8VejXdP/Pbzo8Z0= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3cyf7fvshb-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 15 Dec 2021 13:59:33 -0800 Received: from intmgw001.38.frc1.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:11d::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 15 Dec 2021 13:59:31 -0800 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id CF2FB81A403B; Wed, 15 Dec 2021 13:59:26 -0800 (PST) From: Stefan Roesch To: , CC: , Subject: [PATCH v6 0/3] io_uring: add getdents64 support Date: Wed, 15 Dec 2021 13:59:21 -0800 Message-ID: <20211215215924.3301586-1-shr@fb.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-FB-Internal: Safe X-FB-Source: Intern X-Proofpoint-GUID: S5MvXEZUx26JyHQFTxNJ6eqlsSN_HSoP X-Proofpoint-ORIG-GUID: S5MvXEZUx26JyHQFTxNJ6eqlsSN_HSoP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-15_13,2021-12-14_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=fb_outbound_notspam policy=fb_outbound score=0 bulkscore=0 spamscore=0 mlxlogscore=564 priorityscore=1501 suspectscore=0 mlxscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112150120 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This series adds support for getdents64 in liburing. The intent is to provide a more complete I/O interface for io_uring. Patch 1: fs: split off do_iterate_dir from iterate_dir function This splits of the function do_iterate_dir() from the iterate_dir() function and adds a new parameter. The new parameter allows the caller to specify if the position is the file position or the position stored in the buffer context. The function iterate_dir() calls do_iterate_dir(). Patch 2: fs: split off vfs_getdents function from getdents64 system call This splits of the iterate_dir part of the syscall in its own dedicated function. This allows to call the function directly from liburing. Patch 3: io_uring: add support for getdents64 Adds the functions to io_uring to support getdents64. There is also a patch series for the changes to liburing. This includes a new test. The patch series is called "liburing: add getdents support." The following tests have been performed: - new liburing getdents test program has been run - xfstests have been run - both tests have been repeated with the kernel memory leak checker and no leaks have been reported. Signed-off-by: Stefan Roesch --- v6: - rebased patch series v5: - remove old patch (v4 contained a patch file from v3) V4: - silence compiler warnings V3: - add do_iterate_dir() function to Patch 1 - make iterate_dir() function call do_iterate_dir() This has the advantage that the function signature of iterate_dir does not change V2: Updated the iterate_dir calls in fs/ksmbd, fs/ecryptfs and arch/alpha with the additional parameter. Stefan Roesch (3): fs: split off do_iterate_dir from iterate_dir function fs: split off vfs_getdents function of getdents64 syscall io_uring: add support for getdents64 fs/internal.h | 8 +++++ fs/io_uring.c | 52 +++++++++++++++++++++++++++++ fs/readdir.c | 62 ++++++++++++++++++++++++++++------- include/uapi/linux/io_uring.h | 1 + 4 files changed, 111 insertions(+), 12 deletions(-) base-commit: d09358c3d161dcea8f02eae1281bc996819cc769