4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * libcfs/include/libcfs/linux/linux-fs.h
34 * Basic library routines.
37 #ifndef __LIBCFS_LINUX_CFS_FS_H__
38 #define __LIBCFS_LINUX_CFS_FS_H__
41 #include <linux/stat.h>
42 #include <linux/mount.h>
43 #include <linux/backing-dev.h>
44 #include <linux/posix_acl_xattr.h>
46 #ifndef HAVE_FILE_DENTRY
47 static inline struct dentry *file_dentry(const struct file *file)
49 return file->f_path.dentry;
54 #define QSTR_INIT(n, l) { .len = l, .name = n }
57 #if defined(HAVE_FILE_FSYNC_4ARGS) || defined(HAVE_FILE_FSYNC_2ARGS)
58 #define ll_vfs_fsync_range(fp, start, end, datasync) \
59 vfs_fsync_range(fp, start, end, datasync)
61 #define ll_vfs_fsync_range(fp, start, end, datasync) \
62 vfs_fsync_range(fp, file_dentry(fp), start, end, datasync)
70 #define IFTODT(type) (((type) & S_IFMT) >> IFSHIFT)
73 #define DTTOIF(dirtype) ((dirtype) << IFSHIFT)
76 #ifndef HAVE_POSIXACL_USER_NS
78 * Mask out &init_user_ns so we don't jump
79 * through hoops to define it somehow only
80 * to have it ignored anyway.
82 #define posix_acl_from_xattr(a,b,c) posix_acl_from_xattr(b,c)
83 #define posix_acl_to_xattr(a,b,c,d) posix_acl_to_xattr(b,c,d)
86 #ifndef HAVE_POSIX_ACL_VALID_USER_NS
87 #define posix_acl_valid(a,b) posix_acl_valid(b)