4 #define ARCH (arch_x86_64)
6 #ifndef __NR_ioprio_set
7 #define __NR_ioprio_set 251
8 #define __NR_ioprio_get 252
11 #ifndef __NR_fadvise64
12 #define __NR_fadvise64 221
15 #ifndef __NR_sys_splice
16 #define __NR_sys_splice 275
17 #define __NR_sys_tee 276
18 #define __NR_sys_vmsplice 278
21 #ifndef __NR_async_exec
22 #define __NR_async_exec 286
23 #define __NR_async_wait 287
24 #define __NR_umem_add 288
25 #define __NR_async_thread 289
28 #define FIO_HUGE_PAGE 2097152
30 #define FIO_HAVE_SYSLET
32 #define nop __asm__ __volatile__("rep;nop": : :"memory")
33 #define read_barrier() __asm__ __volatile__("lfence":::"memory")
34 #define write_barrier() __asm__ __volatile__("sfence":::"memory")
36 static inline unsigned int arch_ffz(unsigned int bitmask)
38 __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));