kill check_acl callback of generic_permission()

its value depends only on inode and does not change; we might as
well store it in ->i_op->check_acl and be done with that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h
index 6deef5d..1a3ca8f 100644
--- a/include/linux/reiserfs_xattr.h
+++ b/include/linux/reiserfs_xattr.h
@@ -45,6 +45,7 @@
 
 #ifdef CONFIG_REISERFS_FS_XATTR
 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
+int reiserfs_check_acl(struct inode *inode, int mask, unsigned int flags);
 ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
 			  void *buffer, size_t size);
 int reiserfs_setxattr(struct dentry *dentry, const char *name,
@@ -122,6 +123,7 @@
 #define reiserfs_setxattr NULL
 #define reiserfs_listxattr NULL
 #define reiserfs_removexattr NULL
+#define reiserfs_check_acl NULL
 
 static inline void reiserfs_init_xattr_rwsem(struct inode *inode)
 {