| #ifndef ARCH_X86_64_h |
| #define ARCH_X86_64_h |
| |
| #define ARCH (arch_x86_64) |
| |
| #ifndef __NR_ioprio_set |
| #define __NR_ioprio_set 251 |
| #define __NR_ioprio_get 252 |
| #endif |
| |
| #ifndef __NR_fadvise64 |
| #define __NR_fadvise64 221 |
| #endif |
| |
| #ifndef __NR_sys_splice |
| #define __NR_sys_splice 275 |
| #define __NR_sys_tee 276 |
| #define __NR_sys_vmsplice 278 |
| #endif |
| |
| #define nop __asm__ __volatile__("rep;nop": : :"memory") |
| |
| static inline unsigned long ffz(unsigned long bitmask) |
| { |
| __asm__("bsfq %1,%0" :"=r" (bitmask) :"r" (~bitmask)); |
| return bitmask; |
| } |
| |
| |
| #endif |