diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/reiserfs_xattr.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/reiserfs_xattr.h')
-rw-r--r-- | include/linux/reiserfs_xattr.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h new file mode 100644 index 000000000000..1eaa48eca811 --- /dev/null +++ b/include/linux/reiserfs_xattr.h | |||
@@ -0,0 +1,139 @@ | |||
1 | /* | ||
2 | File: linux/reiserfs_xattr.h | ||
3 | */ | ||
4 | |||
5 | #include <linux/config.h> | ||
6 | #include <linux/init.h> | ||
7 | #include <linux/xattr.h> | ||
8 | |||
9 | /* Magic value in header */ | ||
10 | #define REISERFS_XATTR_MAGIC 0x52465841 /* "RFXA" */ | ||
11 | |||
12 | struct reiserfs_xattr_header { | ||
13 | __u32 h_magic; /* magic number for identification */ | ||
14 | __u32 h_hash; /* hash of the value */ | ||
15 | }; | ||
16 | |||
17 | #ifdef __KERNEL__ | ||
18 | |||
19 | struct reiserfs_xattr_handler { | ||
20 | char *prefix; | ||
21 | int (*init)(void); | ||
22 | void (*exit)(void); | ||
23 | int (*get)(struct inode *inode, const char *name, void *buffer, | ||
24 | size_t size); | ||
25 | int (*set)(struct inode *inode, const char *name, const void *buffer, | ||
26 | size_t size, int flags); | ||
27 | int (*del)(struct inode *inode, const char *name); | ||
28 | int (*list)(struct inode *inode, const char *name, int namelen, char *out); | ||
29 | struct list_head handlers; | ||
30 | }; | ||
31 | |||
32 | |||
33 | #ifdef CONFIG_REISERFS_FS_XATTR | ||
34 | #define is_reiserfs_priv_object(inode) IS_PRIVATE(inode) | ||
35 | #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir) | ||
36 | ssize_t reiserfs_getxattr (struct dentry *dentry, const char *name, | ||
37 | void *buffer, size_t size); | ||
38 | int reiserfs_setxattr (struct dentry *dentry, const char *name, | ||
39 | const void *value, size_t size, int flags); | ||
40 | ssize_t reiserfs_listxattr (struct dentry *dentry, char *buffer, size_t size); | ||
41 | int reiserfs_removexattr (struct dentry *dentry, const char *name); | ||
42 | int reiserfs_delete_xattrs (struct inode *inode); | ||
43 | int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs); | ||
44 | int reiserfs_xattr_init (struct super_block *sb, int mount_flags); | ||
45 | int reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd); | ||
46 | int reiserfs_permission_locked (struct inode *inode, int mask, struct nameidata *nd); | ||
47 | |||
48 | int reiserfs_xattr_del (struct inode *, const char *); | ||
49 | int reiserfs_xattr_get (const struct inode *, const char *, void *, size_t); | ||
50 | int reiserfs_xattr_set (struct inode *, const char *, const void *, | ||
51 | size_t, int); | ||
52 | |||
53 | extern struct reiserfs_xattr_handler user_handler; | ||
54 | extern struct reiserfs_xattr_handler trusted_handler; | ||
55 | #ifdef CONFIG_REISERFS_FS_SECURITY | ||
56 | extern struct reiserfs_xattr_handler security_handler; | ||
57 | #endif | ||
58 | |||
59 | int reiserfs_xattr_register_handlers (void) __init; | ||
60 | void reiserfs_xattr_unregister_handlers (void); | ||
61 | |||
62 | static inline void | ||
63 | reiserfs_write_lock_xattrs(struct super_block *sb) | ||
64 | { | ||
65 | down_write (&REISERFS_XATTR_DIR_SEM(sb)); | ||
66 | } | ||
67 | static inline void | ||
68 | reiserfs_write_unlock_xattrs(struct super_block *sb) | ||
69 | { | ||
70 | up_write (&REISERFS_XATTR_DIR_SEM(sb)); | ||
71 | } | ||
72 | static inline void | ||
73 | reiserfs_read_lock_xattrs(struct super_block *sb) | ||
74 | { | ||
75 | down_read (&REISERFS_XATTR_DIR_SEM(sb)); | ||
76 | } | ||
77 | |||
78 | static inline void | ||
79 | reiserfs_read_unlock_xattrs(struct super_block *sb) | ||
80 | { | ||
81 | up_read (&REISERFS_XATTR_DIR_SEM(sb)); | ||
82 | } | ||
83 | |||
84 | static inline void | ||
85 | reiserfs_write_lock_xattr_i(struct inode *inode) | ||
86 | { | ||
87 | down_write (&REISERFS_I(inode)->xattr_sem); | ||
88 | } | ||
89 | static inline void | ||
90 | reiserfs_write_unlock_xattr_i(struct inode *inode) | ||
91 | { | ||
92 | up_write (&REISERFS_I(inode)->xattr_sem); | ||
93 | } | ||
94 | static inline void | ||
95 | reiserfs_read_lock_xattr_i(struct inode *inode) | ||
96 | { | ||
97 | down_read (&REISERFS_I(inode)->xattr_sem); | ||
98 | } | ||
99 | |||
100 | static inline void | ||
101 | reiserfs_read_unlock_xattr_i(struct inode *inode) | ||
102 | { | ||
103 | up_read (&REISERFS_I(inode)->xattr_sem); | ||
104 | } | ||
105 | |||
106 | static inline void | ||
107 | reiserfs_mark_inode_private(struct inode *inode) | ||
108 | { | ||
109 | inode->i_flags |= S_PRIVATE; | ||
110 | } | ||
111 | |||
112 | #else | ||
113 | |||
114 | #define is_reiserfs_priv_object(inode) 0 | ||
115 | #define reiserfs_mark_inode_private(inode) | ||
116 | #define reiserfs_getxattr NULL | ||
117 | #define reiserfs_setxattr NULL | ||
118 | #define reiserfs_listxattr NULL | ||
119 | #define reiserfs_removexattr NULL | ||
120 | #define reiserfs_write_lock_xattrs(sb) | ||
121 | #define reiserfs_write_unlock_xattrs(sb) | ||
122 | #define reiserfs_read_lock_xattrs(sb) | ||
123 | #define reiserfs_read_unlock_xattrs(sb) | ||
124 | |||
125 | #define reiserfs_permission NULL | ||
126 | |||
127 | #define reiserfs_xattr_register_handlers() 0 | ||
128 | #define reiserfs_xattr_unregister_handlers() | ||
129 | |||
130 | static inline int reiserfs_delete_xattrs (struct inode *inode) { return 0; }; | ||
131 | static inline int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs) { return 0; }; | ||
132 | static inline int reiserfs_xattr_init (struct super_block *sb, int mount_flags) | ||
133 | { | ||
134 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL); /* to be sure */ | ||
135 | return 0; | ||
136 | }; | ||
137 | #endif | ||
138 | |||
139 | #endif /* __KERNEL__ */ | ||