[PATCH] 32-bit fixes
[fio.git] / os-linux.h
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1#ifndef FIO_OS_LINUX_H
2#define FIO_OS_LINUX_H
3
4#include <sys/ioctl.h>
5
6#define FIO_HAVE_LIBAIO
7#define FIO_HAVE_POSIXAIO
8#define FIO_HAVE_FADVISE
9#define FIO_HAVE_CPU_AFFINITY
10#define FIO_HAVE_DISK_UTIL
11#define FIO_HAVE_SGIO
12
13#define OS_MAP_ANON (MAP_ANONYMOUS)
14
15typedef cpu_set_t os_cpu_mask_t;
16
17/*
18 * we want fadvise64 really, but it's so tangled... later
19 */
20#define fadvise(fd, off, len, advice) \
21 posix_fadvise((fd), (off_t)(off), (len), (advice))
22
23#define fio_setaffinity(td) \
24 sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask)
25#define fio_getaffinity(pid, ptr) \
26 sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
27
28static inline int ioprio_set(int which, int who, int ioprio)
29{
30 return syscall(__NR_ioprio_set, which, who, ioprio);
31}
32
33enum {
34 IOPRIO_WHO_PROCESS = 1,
35 IOPRIO_WHO_PGRP,
36 IOPRIO_WHO_USER,
37};
38
39#define IOPRIO_CLASS_SHIFT 13
40
41#ifndef BLKGETSIZE64
42#define BLKGETSIZE64 _IOR(0x12,114,size_t)
43#endif
44
9104f874 45static inline int blockdev_size(int fd, unsigned long long *bytes)
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46{
47 if (!ioctl(fd, BLKGETSIZE64, bytes))
48 return 0;
49
50 return errno;
51}
52
53#endif