diff options
Diffstat (limited to 'fs/qnx6/qnx6.h')
-rw-r--r-- | fs/qnx6/qnx6.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h new file mode 100644 index 000000000000..6c5e02a0b6a8 --- /dev/null +++ b/fs/qnx6/qnx6.h | |||
@@ -0,0 +1,135 @@ | |||
1 | /* | ||
2 | * QNX6 file system, Linux implementation. | ||
3 | * | ||
4 | * Version : 1.0.0 | ||
5 | * | ||
6 | * History : | ||
7 | * | ||
8 | * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release. | ||
9 | * 16-02-2012 page map extension by Al Viro | ||
10 | * | ||
11 | */ | ||
12 | |||
13 | #include <linux/fs.h> | ||
14 | #include <linux/pagemap.h> | ||
15 | |||
16 | typedef __u16 __bitwise __fs16; | ||
17 | typedef __u32 __bitwise __fs32; | ||
18 | typedef __u64 __bitwise __fs64; | ||
19 | |||
20 | #include <linux/qnx6_fs.h> | ||
21 | |||
22 | #ifdef CONFIG_QNX6FS_DEBUG | ||
23 | #define QNX6DEBUG(X) printk X | ||
24 | #else | ||
25 | #define QNX6DEBUG(X) (void) 0 | ||
26 | #endif | ||
27 | |||
28 | struct qnx6_sb_info { | ||
29 | struct buffer_head *sb_buf; /* superblock buffer */ | ||
30 | struct qnx6_super_block *sb; /* our superblock */ | ||
31 | int s_blks_off; /* blkoffset fs-startpoint */ | ||
32 | int s_ptrbits; /* indirect pointer bitfield */ | ||
33 | unsigned long s_mount_opt; /* all mount options */ | ||
34 | int s_bytesex; /* holds endianess info */ | ||
35 | struct inode * inodes; | ||
36 | struct inode * longfile; | ||
37 | }; | ||
38 | |||
39 | struct qnx6_inode_info { | ||
40 | __fs32 di_block_ptr[QNX6_NO_DIRECT_POINTERS]; | ||
41 | __u8 di_filelevels; | ||
42 | __u32 i_dir_start_lookup; | ||
43 | struct inode vfs_inode; | ||
44 | }; | ||
45 | |||
46 | extern struct inode *qnx6_iget(struct super_block *sb, unsigned ino); | ||
47 | extern struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry, | ||
48 | struct nameidata *nd); | ||
49 | |||
50 | #ifdef CONFIG_QNX6FS_DEBUG | ||
51 | extern void qnx6_superblock_debug(struct qnx6_super_block *, | ||
52 | struct super_block *); | ||
53 | #endif | ||
54 | |||
55 | extern const struct inode_operations qnx6_dir_inode_operations; | ||
56 | extern const struct file_operations qnx6_dir_operations; | ||
57 | |||
58 | static inline struct qnx6_sb_info *QNX6_SB(struct super_block *sb) | ||
59 | { | ||
60 | return sb->s_fs_info; | ||
61 | } | ||
62 | |||
63 | static inline struct qnx6_inode_info *QNX6_I(struct inode *inode) | ||
64 | { | ||
65 | return container_of(inode, struct qnx6_inode_info, vfs_inode); | ||
66 | } | ||
67 | |||
68 | #define clear_opt(o, opt) (o &= ~(QNX6_MOUNT_##opt)) | ||
69 | #define set_opt(o, opt) (o |= (QNX6_MOUNT_##opt)) | ||
70 | #define test_opt(sb, opt) (QNX6_SB(sb)->s_mount_opt & \ | ||
71 | QNX6_MOUNT_##opt) | ||
72 | enum { | ||
73 | BYTESEX_LE, | ||
74 | BYTESEX_BE, | ||
75 | }; | ||
76 | |||
77 | static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n) | ||
78 | { | ||
79 | if (sbi->s_bytesex == BYTESEX_LE) | ||
80 | return le64_to_cpu((__force __le64)n); | ||
81 | else | ||
82 | return be64_to_cpu((__force __be64)n); | ||
83 | } | ||
84 | |||
85 | static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n) | ||
86 | { | ||
87 | if (sbi->s_bytesex == BYTESEX_LE) | ||
88 | return (__force __fs64)cpu_to_le64(n); | ||
89 | else | ||
90 | return (__force __fs64)cpu_to_be64(n); | ||
91 | } | ||
92 | |||
93 | static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n) | ||
94 | { | ||
95 | if (sbi->s_bytesex == BYTESEX_LE) | ||
96 | return le32_to_cpu((__force __le32)n); | ||
97 | else | ||
98 | return be32_to_cpu((__force __be32)n); | ||
99 | } | ||
100 | |||
101 | static inline __fs32 cpu_to_fs32(struct qnx6_sb_info *sbi, __u32 n) | ||
102 | { | ||
103 | if (sbi->s_bytesex == BYTESEX_LE) | ||
104 | return (__force __fs32)cpu_to_le32(n); | ||
105 | else | ||
106 | return (__force __fs32)cpu_to_be32(n); | ||
107 | } | ||
108 | |||
109 | static inline __u16 fs16_to_cpu(struct qnx6_sb_info *sbi, __fs16 n) | ||
110 | { | ||
111 | if (sbi->s_bytesex == BYTESEX_LE) | ||
112 | return le16_to_cpu((__force __le16)n); | ||
113 | else | ||
114 | return be16_to_cpu((__force __be16)n); | ||
115 | } | ||
116 | |||
117 | static inline __fs16 cpu_to_fs16(struct qnx6_sb_info *sbi, __u16 n) | ||
118 | { | ||
119 | if (sbi->s_bytesex == BYTESEX_LE) | ||
120 | return (__force __fs16)cpu_to_le16(n); | ||
121 | else | ||
122 | return (__force __fs16)cpu_to_be16(n); | ||
123 | } | ||
124 | |||
125 | extern struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, | ||
126 | int silent); | ||
127 | |||
128 | static inline void qnx6_put_page(struct page *page) | ||
129 | { | ||
130 | kunmap(page); | ||
131 | page_cache_release(page); | ||
132 | } | ||
133 | |||
134 | extern unsigned qnx6_find_entry(int len, struct inode *dir, const char *name, | ||
135 | struct page **res_page); | ||