kernel-ark/include/linux/reiserfs_acl.h
Al Viro 3e8962be91 [PATCH] reiserfs endianness: annotate little-endian objects
little-endian objects annotated as such; again, obviously no changes of
resulting code, we only replace __u16 with __le16, etc.  in relevant places.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Cc: <reiserfs-dev@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:18 -07:00

90 lines
2.0 KiB
C

#include <linux/init.h>
#include <linux/posix_acl.h>
#include <linux/xattr_acl.h>
#define REISERFS_ACL_VERSION 0x0001
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
} reiserfs_acl_entry;
typedef struct {
__le16 e_tag;
__le16 e_perm;
} reiserfs_acl_entry_short;
typedef struct {
__le32 a_version;
} reiserfs_acl_header;
static inline size_t reiserfs_acl_size(int count)
{
if (count <= 4) {
return sizeof(reiserfs_acl_header) +
count * sizeof(reiserfs_acl_entry_short);
} else {
return sizeof(reiserfs_acl_header) +
4 * sizeof(reiserfs_acl_entry_short) +
(count - 4) * sizeof(reiserfs_acl_entry);
}
}
static inline int reiserfs_acl_count(size_t size)
{
ssize_t s;
size -= sizeof(reiserfs_acl_header);
s = size - 4 * sizeof(reiserfs_acl_entry_short);
if (s < 0) {
if (size % sizeof(reiserfs_acl_entry_short))
return -1;
return size / sizeof(reiserfs_acl_entry_short);
} else {
if (s % sizeof(reiserfs_acl_entry))
return -1;
return s / sizeof(reiserfs_acl_entry) + 4;
}
}
#ifdef CONFIG_REISERFS_FS_POSIX_ACL
struct posix_acl * reiserfs_get_acl(struct inode *inode, int type);
int reiserfs_acl_chmod (struct inode *inode);
int reiserfs_inherit_default_acl (struct inode *dir, struct dentry *dentry, struct inode *inode);
int reiserfs_cache_default_acl (struct inode *dir);
extern int reiserfs_xattr_posix_acl_init (void) __init;
extern int reiserfs_xattr_posix_acl_exit (void);
extern struct reiserfs_xattr_handler posix_acl_default_handler;
extern struct reiserfs_xattr_handler posix_acl_access_handler;
#else
#define reiserfs_get_acl NULL
#define reiserfs_cache_default_acl(inode) 0
static inline int
reiserfs_xattr_posix_acl_init (void)
{
return 0;
}
static inline int
reiserfs_xattr_posix_acl_exit (void)
{
return 0;
}
static inline int
reiserfs_acl_chmod (struct inode *inode)
{
return 0;
}
static inline int
reiserfs_inherit_default_acl (const struct inode *dir, struct dentry *dentry, struct inode *inode)
{
return 0;
}
#endif