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squashfs: add xattr support configure option
[mirror_ubuntu-artful-kernel.git] / fs / squashfs / xattr.h
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01e5b4e4
PL
1/*
2 * Squashfs - a compressed read only filesystem for Linux
3 *
4 * Copyright (c) 2010
5 * Phillip Lougher <phillip@lougher.demon.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2,
10 * or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 * xattr.h
22 */
23
24#ifdef CONFIG_SQUASHFS_XATTRS
25extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
26 u64 *, int *);
27extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
28 int *, long long *);
29#else
30static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
31 u64 start, u64 *xattr_table_start, int *xattr_ids)
32{
33 ERROR("Xattrs in filesystem, these will be ignored\n");
34 return ERR_PTR(-ENOTSUPP);
35}
36
37static inline int squashfs_xattr_lookup(struct super_block *sb,
38 unsigned int index, int *count, int *size, long long *xattr)
39{
40 return 0;
41}
42#define squashfs_listxattr NULL
43#define generic_getxattr NULL
44#define squashfs_xattr_handlers NULL
45#endif