Btrfs: deal with DIO bios that span more than one ordered extent
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / asm-generic / timex.h
blobb2243cb8d6f6f3d7989e578b3b31863074d5d89b
1 #ifndef __ASM_GENERIC_TIMEX_H
2 #define __ASM_GENERIC_TIMEX_H
4 /*
5 * If you have a cycle counter, return the value here.
6 */
7 typedef unsigned long cycles_t;
8 #ifndef get_cycles
9 static inline cycles_t get_cycles(void)
11 return 0;
13 #endif
16 * Architectures are encouraged to implement read_current_timer
17 * and define this in order to avoid the expensive delay loop
18 * calibration during boot.
20 #undef ARCH_HAS_READ_CURRENT_TIMER
22 #endif /* __ASM_GENERIC_TIMEX_H */