From mboxrd@z Thu Jan 1 00:00:00 1970 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 3BE10C433EF for ; Wed, 29 Dec 2021 20:30:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231944AbhL2Ua0 (ORCPT ); Wed, 29 Dec 2021 15:30:26 -0500 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:17108 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231773AbhL2UaZ (ORCPT ); Wed, 29 Dec 2021 15:30:25 -0500 Received: from pps.filterd (m0148460.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 1BTHDnX1003162 for ; Wed, 29 Dec 2021 12:30:25 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=g0KFlOUuryi2K2aT57GzAH4trWZbls5urVBgYCcqqcs=; b=AcQlTqkQXP054sRD/zL0ZqWcSZqxIvsjQu717KPA1m93rSdTy8q9i3/0ktJWugHm5lh1 kdQnJ7KU6pVwbvkDe1xkANFhEV1b2zbWvUoYyH1CGLiWqeZ3OmyoAFcsf1wOpU9OQICA FbAny4neYxOXqr5daT/P4JKzJb8v0OEvXlc= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3d8evtcyav-17 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 29 Dec 2021 12:30:25 -0800 Received: from twshared4941.18.frc3.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Wed, 29 Dec 2021 12:30:13 -0800 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id 6F88C8C20DF2; Wed, 29 Dec 2021 12:30:04 -0800 (PST) From: Stefan Roesch To: , , CC: , , Subject: [PATCH v10 1/5] fs: split off do_user_path_at_empty from user_path_at_empty() Date: Wed, 29 Dec 2021 12:29:58 -0800 Message-ID: <20211229203002.4110839-2-shr@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211229203002.4110839-1-shr@fb.com> References: <20211229203002.4110839-1-shr@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: 40h-aRApT7pSTEgZ1w2msHvG0hNMVAwu X-Proofpoint-ORIG-GUID: 40h-aRApT7pSTEgZ1w2msHvG0hNMVAwu 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=2021-12-29_06,2021-12-29_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=fb_outbound_notspam policy=fb_outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 phishscore=0 malwarescore=0 mlxlogscore=699 suspectscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112290110 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This splits off a do_user_path_at_empty function from the user_path_at_empty_function. This is required so it can be called from io_uring. Signed-off-by: Stefan Roesch Acked-by: Christian Brauner --- fs/internal.h | 6 ++++++ fs/namei.c | 10 ++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/internal.h b/fs/internal.h index 432ea3ce76ec..afa60757d5f6 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -202,3 +202,9 @@ struct linux_dirent64; =20 int vfs_getdents(struct file *file, struct linux_dirent64 __user *dirent= , unsigned int count, loff_t *pos); + + /* + * fs/namei.c: + */ +extern int do_user_path_at_empty(int dfd, struct filename *filename, + unsigned int flags, struct path *path); diff --git a/fs/namei.c b/fs/namei.c index 1f9d2187c765..d988e241b32c 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2794,12 +2794,18 @@ int path_pts(struct path *path) } #endif =20 +int do_user_path_at_empty(int dfd, struct filename *filename, unsigned i= nt flags, + struct path *path) +{ + return filename_lookup(dfd, filename, flags, path, NULL); +} + int user_path_at_empty(int dfd, const char __user *name, unsigned flags, - struct path *path, int *empty) + struct path *path, int *empty) { struct filename *filename =3D getname_flags(name, flags, empty); - int ret =3D filename_lookup(dfd, filename, flags, path, NULL); =20 + int ret =3D do_user_path_at_empty(dfd, filename, flags, path); putname(filename); return ret; } --=20 2.30.2