* fhandler.h (enum query_state): Drop redundant query_stat_control.

* fhandler.cc (fhandler_base::open): Ditto.  Add READ_CONTROL to
	access and FILE_OPEN_FOR_BACKUP_INTENT to create_options when opening
	for writing.  Always set security attributes to avoid calling
	has_acls.
	* fhandler_disk_file.cc (fhandler_base::fstat_fs): Don't try to
	open file twice.

winsup/cygwin/fhandler.h

@@ -86,9 +86,8 @@ enum query_state {
   no_query = 0,
   query_read_control = 1,
   query_read_attributes = 2,
-  query_stat_control = 3,
-  query_write_control = 4,
-  query_write_attributes = 5
+  query_write_control = 3,
+  query_write_attributes = 4
 };
 
 class fhandler_base