1 files changed, 76 insertions, 0 deletions

diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h
new file mode 100644
index 000000000000..f096b80e73d8
--- /dev/null
+++ b/fs/reiserfs/acl.h
@@ -0,0 +1,76 @@
+#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