4 (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
7 #include <linux/xattr_acl.h>
9 #define EXT3_ACL_VERSION 0x0001
20 } ext3_acl_entry_short;
26 static inline size_t ext3_acl_size(int count)
29 return sizeof(ext3_acl_header) +
30 count * sizeof(ext3_acl_entry_short);
32 return sizeof(ext3_acl_header) +
33 4 * sizeof(ext3_acl_entry_short) +
34 (count - 4) * sizeof(ext3_acl_entry);
38 static inline int ext3_acl_count(size_t size)
41 size -= sizeof(ext3_acl_header);
42 s = size - 4 * sizeof(ext3_acl_entry_short);
44 if (size % sizeof(ext3_acl_entry_short))
46 return size / sizeof(ext3_acl_entry_short);
48 if (s % sizeof(ext3_acl_entry))
50 return s / sizeof(ext3_acl_entry) + 4;
54 #ifdef CONFIG_EXT3_FS_POSIX_ACL
56 /* Value for inode->u.ext3_i.i_acl and inode->u.ext3_i.i_default_acl
57 if the ACL has not been cached */
58 #define EXT3_ACL_NOT_CACHED ((void *)-1)
61 extern int ext3_permission (struct inode *, int, struct nameidata *);
62 extern int ext3_acl_chmod (struct inode *);
63 extern int ext3_init_acl (handle_t *, struct inode *, struct inode *);
65 extern int init_ext3_acl(void);
66 extern void exit_ext3_acl(void);
68 #else /* CONFIG_EXT3_FS_POSIX_ACL */
69 #include <linux/sched.h>
70 #define ext3_permission NULL
73 ext3_acl_chmod(struct inode *inode)
79 ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
83 #endif /* CONFIG_EXT3_FS_POSIX_ACL */