From patchwork Thu Dec 23 19:56:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Roesch X-Patchwork-Id: 12698620 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 D65C5C433FE for ; Thu, 23 Dec 2021 19:57:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244520AbhLWT5S (ORCPT ); Thu, 23 Dec 2021 14:57:18 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:35906 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229759AbhLWT5S (ORCPT ); Thu, 23 Dec 2021 14:57:18 -0500 Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 1BN6toEp032203 for ; Thu, 23 Dec 2021 11:57:17 -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=RsGML5PSjkm9MkP0lwEXcaQIocu8tjcRCtIgr8CWA/g=; b=dppAd3jdJKEQ19YvXbE9X7NujlgnfPEoMzIWjtIjprDPlvnFh/qk8m2jv3gTcDcU+/FX 1pHP8DD9ZiRbWlW5XYkCe0rqzwHI6b5nIS+KI31SjanV0P/MZMQRUHQMZejECpE9kkSr fmYFxL9Fa9eF/zjqKJEM/5MI6JUsvgIGvHI= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3d4m96vhsv-8 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Thu, 23 Dec 2021 11:57:17 -0800 Received: from twshared10481.23.frc3.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:11d::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Thu, 23 Dec 2021 11:57:13 -0800 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id BA1B587A0747; Thu, 23 Dec 2021 11:57:08 -0800 (PST) From: Stefan Roesch To: , , CC: , , Subject: [PATCH v7 0/5] io_uring: add xattr support Date: Thu, 23 Dec 2021 11:56:53 -0800 Message-ID: <20211223195658.2805049-1-shr@fb.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-ORIG-GUID: Ej4vJHTTRmhek8DUEVl1tnIO-0JoU1rb X-Proofpoint-GUID: Ej4vJHTTRmhek8DUEVl1tnIO-0JoU1rb 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=2021-12-23_04,2021-12-22_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=fb_outbound_notspam policy=fb_outbound score=0 suspectscore=0 adultscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=928 clxscore=1015 spamscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112230102 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This adds the xattr support to io_uring. The intent is to have a more complete support for file operations in io_uring. This change adds support for the following functions to io_uring: - fgetxattr - fsetxattr - getxattr - setxattr Patch 1: fs: split off do_user_path_at_empty from user_path_at_empty() This splits off a new function do_user_path_at_empty from user_path_at_empty that is based on filename and not on a user-specified string. Patch 2: fs: split off setxattr_copy and do_setxattr function from setxattr Split off the setup part of the setxattr function in the setxattr_copy function. Split off the processing part in do_setxattr. Patch 3: fs: split off do_getxattr from getxattr Split of the do_getxattr part from getxattr. This will allow it to be invoked it from io_uring. Patch 4: io_uring: add fsetxattr and setxattr support This adds new functions to support the fsetxattr and setxattr functions. Patch 5: io_uring: add fgetxattr and getxattr support This adds new functions to support the fgetxattr and getxattr functions. There are two additional patches: liburing: Add support for xattr api's. This also includes the tests for the new code. xfstests: Add support for io_uring xattr support. V7: - split off setxattr in two functions as recommeneded by Christian. V6: - reverted addition of kname array to xattr_ctx structure Adding the kname array increases the io_kiocb beyond 64 bytes (increases it to 224 bytes). We try hard to limit it to 64 bytes. Keeping the original interface also is a bit more efficient. - addressed Pavel's reordering comment - addressed Pavel's putname comment - addressed Pavel's kvfree comment - rebased on for-5.17/io_uring-getdents64 V5: - add kname array to xattr_ctx structure V4: - rebased patch series V3: - remove req->file checks in prep functions - change size parameter in do_xattr V2: - split off function do_user_path_empty instead of changing the function signature of user_path_at - Fix datatype size problem in do_getxattr Stefan Roesch (5): fs: split off do_user_path_at_empty from user_path_at_empty() fs: split off setxattr_copy and do_setxattr function from setxattr fs: split off do_getxattr from getxattr io_uring: add fsetxattr and setxattr support io_uring: add fgetxattr and getxattr support fs/internal.h | 25 +++ fs/io_uring.c | 315 ++++++++++++++++++++++++++++++++++ fs/namei.c | 10 +- fs/xattr.c | 119 +++++++++---- include/linux/namei.h | 2 + include/uapi/linux/io_uring.h | 8 +- 6 files changed, 442 insertions(+), 37 deletions(-) base-commit: b4518682080d3a1cdd6ea45a54ff6772b8b2797a