zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/fs/xfs/xfs_acl.h b/ap/os/linux/linux-3.4.x/fs/xfs/xfs_acl.h
new file mode 100644
index 0000000..39632d9
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/xfs/xfs_acl.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2001-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_ACL_H__
+#define __XFS_ACL_H__
+
+struct inode;
+struct posix_acl;
+struct xfs_inode;
+
+#define XFS_ACL_MAX_ENTRIES 25
+#define XFS_ACL_NOT_PRESENT (-1)
+
+/* On-disk XFS access control list structure */
+struct xfs_acl {
+	__be32		acl_cnt;
+	struct xfs_acl_entry {
+		__be32	ae_tag;
+		__be32	ae_id;
+		__be16	ae_perm;
+	} acl_entry[XFS_ACL_MAX_ENTRIES];
+};
+
+/* On-disk XFS extended attribute names */
+#define SGI_ACL_FILE		(unsigned char *)"SGI_ACL_FILE"
+#define SGI_ACL_DEFAULT		(unsigned char *)"SGI_ACL_DEFAULT"
+#define SGI_ACL_FILE_SIZE	(sizeof(SGI_ACL_FILE)-1)
+#define SGI_ACL_DEFAULT_SIZE	(sizeof(SGI_ACL_DEFAULT)-1)
+
+#ifdef CONFIG_XFS_POSIX_ACL
+extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
+extern int xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl);
+extern int xfs_acl_chmod(struct inode *inode);
+extern int posix_acl_access_exists(struct inode *inode);
+extern int posix_acl_default_exists(struct inode *inode);
+
+extern const struct xattr_handler xfs_xattr_acl_access_handler;
+extern const struct xattr_handler xfs_xattr_acl_default_handler;
+#else
+static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
+{
+	return NULL;
+}
+# define xfs_inherit_acl(inode, default_acl)		0
+# define xfs_acl_chmod(inode)				0
+# define posix_acl_access_exists(inode)			0
+# define posix_acl_default_exists(inode)		0
+#endif /* CONFIG_XFS_POSIX_ACL */
+#endif	/* __XFS_ACL_H__ */