* pio_writing.
*/
spinlock_t pioavail_lock;
-
+ /*
+ * index of last buffer to optimize search for next
+ */
+ u32 last_pio;
+ /*
+ * min kernel pio buffer to optimize search
+ */
+ u32 min_kernel_pio;
/*
* Shadow copies of registers; size indicates read access size.
* Most of them are readonly, but some are write-only register,