acl.h

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#include <linux/init.h>
#include <linux/posix_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 reiserfs_transaction_handle *th,
                 struct inode *dir, struct dentry *dentry,
                 struct inode *inode);
int reiserfs_cache_default_acl(struct inode *dir);
extern const struct xattr_handler reiserfs_posix_acl_default_handler;
extern const struct xattr_handler reiserfs_posix_acl_access_handler;

#else

#define reiserfs_cache_default_acl(inode) 0
#define reiserfs_get_acl NULL

static inline int reiserfs_acl_chmod(struct inode *inode)
{
    return 0;
}

static inline int
reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
                 const struct inode *dir, struct dentry *dentry,
                 struct inode *inode)
{
    return 0;
}
#endif