diff options
Diffstat (limited to 'fs/romfs/internal.h')
-rw-r--r-- | fs/romfs/internal.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/fs/romfs/internal.h b/fs/romfs/internal.h new file mode 100644 index 000000000000..06044a9dc62d --- /dev/null +++ b/fs/romfs/internal.h | |||
@@ -0,0 +1,47 @@ | |||
1 | /* RomFS internal definitions | ||
2 | * | ||
3 | * Copyright © 2007 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | #include <linux/romfs_fs.h> | ||
13 | |||
14 | struct romfs_inode_info { | ||
15 | struct inode vfs_inode; | ||
16 | unsigned long i_metasize; /* size of non-data area */ | ||
17 | unsigned long i_dataoffset; /* from the start of fs */ | ||
18 | }; | ||
19 | |||
20 | static inline size_t romfs_maxsize(struct super_block *sb) | ||
21 | { | ||
22 | return (size_t) (unsigned long) sb->s_fs_info; | ||
23 | } | ||
24 | |||
25 | static inline struct romfs_inode_info *ROMFS_I(struct inode *inode) | ||
26 | { | ||
27 | return container_of(inode, struct romfs_inode_info, vfs_inode); | ||
28 | } | ||
29 | |||
30 | /* | ||
31 | * mmap-nommu.c | ||
32 | */ | ||
33 | #if !defined(CONFIG_MMU) && defined(CONFIG_ROMFS_ON_MTD) | ||
34 | extern const struct file_operations romfs_ro_fops; | ||
35 | #else | ||
36 | #define romfs_ro_fops generic_ro_fops | ||
37 | #endif | ||
38 | |||
39 | /* | ||
40 | * storage.c | ||
41 | */ | ||
42 | extern int romfs_dev_read(struct super_block *sb, unsigned long pos, | ||
43 | void *buf, size_t buflen); | ||
44 | extern ssize_t romfs_dev_strnlen(struct super_block *sb, | ||
45 | unsigned long pos, size_t maxlen); | ||
46 | extern int romfs_dev_strncmp(struct super_block *sb, unsigned long pos, | ||
47 | const char *str, size_t size); | ||