| #ifndef FIO_OS_LINUX_H |
| #define FIO_OS_LINUX_H |
| |
| #include <sys/ioctl.h> |
| |
| #define FIO_HAVE_LIBAIO |
| #define FIO_HAVE_POSIXAIO |
| #define FIO_HAVE_FADVISE |
| #define FIO_HAVE_CPU_AFFINITY |
| #define FIO_HAVE_DISK_UTIL |
| #define FIO_HAVE_SGIO |
| #define FIO_HAVE_IOPRIO |
| |
| #define OS_MAP_ANON (MAP_ANONYMOUS) |
| |
| typedef cpu_set_t os_cpu_mask_t; |
| |
| /* |
| * we want fadvise64 really, but it's so tangled... later |
| */ |
| #define fadvise(fd, off, len, advice) \ |
| posix_fadvise((fd), (off_t)(off), (len), (advice)) |
| |
| #define fio_setaffinity(td) \ |
| sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask) |
| #define fio_getaffinity(pid, ptr) \ |
| sched_getaffinity((pid), sizeof(cpu_set_t), (ptr)) |
| |
| static inline int ioprio_set(int which, int who, int ioprio) |
| { |
| return syscall(__NR_ioprio_set, which, who, ioprio); |
| } |
| |
| enum { |
| IOPRIO_WHO_PROCESS = 1, |
| IOPRIO_WHO_PGRP, |
| IOPRIO_WHO_USER, |
| }; |
| |
| #define IOPRIO_CLASS_SHIFT 13 |
| |
| #ifndef BLKGETSIZE64 |
| #define BLKGETSIZE64 _IOR(0x12,114,size_t) |
| #endif |
| |
| static inline int blockdev_size(int fd, unsigned long long *bytes) |
| { |
| if (!ioctl(fd, BLKGETSIZE64, bytes)) |
| return 0; |
| |
| return errno; |
| } |
| |
| #endif |