#define NO_READ 1 /* prevents get_block from doing disk read */
#define PREFETCH 2 /* tells get_block not to read or mark dev */
-#define XPIPE (-NR_TASKS-1) /* used in fp_task when susp'd on pipe */
-#define XLOCK (-NR_TASKS-2) /* used in fp_task when susp'd on lock */
-#define XPOPEN (-NR_TASKS-3) /* used in fp_task when susp'd on pipe open */
-#define XSELECT (-NR_TASKS-4) /* used in fp_task when susp'd on select */
-
#define NO_BIT ((bit_t) 0) /* returned by alloc_bit() to signal failure */
-#define DUP_MASK 0100 /* mask to distinguish dup2 from dup */
-
#define LOOK_UP 0 /* tells search_dir to lookup string */
#define ENTER 1 /* tells search_dir to make dir entry */
#define DELETE 2 /* tells search_dir to delete entry */