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5b88fdd9 SF |
1 | /* |
2 | * Copyright (C) 2005-2016 Junjiro R. Okajima | |
3 | * | |
4 | * This program, aufs is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | /* | |
19 | * support for loopback mount as a branch | |
20 | */ | |
21 | ||
22 | #ifndef __AUFS_LOOP_H__ | |
23 | #define __AUFS_LOOP_H__ | |
24 | ||
25 | #ifdef __KERNEL__ | |
26 | ||
27 | struct dentry; | |
28 | struct super_block; | |
29 | ||
30 | #ifdef CONFIG_AUFS_BDEV_LOOP | |
31 | /* drivers/block/loop.c */ | |
32 | struct file *loop_backing_file(struct super_block *sb); | |
33 | ||
34 | /* loop.c */ | |
35 | int au_test_loopback_overlap(struct super_block *sb, struct dentry *h_adding); | |
36 | int au_test_loopback_kthread(void); | |
37 | void au_warn_loopback(struct super_block *h_sb); | |
38 | ||
39 | int au_loopback_init(void); | |
40 | void au_loopback_fin(void); | |
41 | #else | |
42 | AuStubInt0(au_test_loopback_overlap, struct super_block *sb, | |
43 | struct dentry *h_adding) | |
44 | AuStubInt0(au_test_loopback_kthread, void) | |
45 | AuStubVoid(au_warn_loopback, struct super_block *h_sb) | |
46 | ||
47 | AuStubInt0(au_loopback_init, void) | |
48 | AuStubVoid(au_loopback_fin, void) | |
49 | #endif /* BLK_DEV_LOOP */ | |
50 | ||
51 | #endif /* __KERNEL__ */ | |
52 | #endif /* __AUFS_LOOP_H__ */ |