6 #include <sys/syscall.h>
8 #include <asm/unistd.h>
10 #define FIO_HAVE_LIBAIO
11 #define FIO_HAVE_POSIXAIO
12 #define FIO_HAVE_FADVISE
13 #define FIO_HAVE_CPU_AFFINITY
14 #define FIO_HAVE_DISK_UTIL
16 #define FIO_HAVE_IOPRIO
17 #define FIO_HAVE_SPLICE
18 #define FIO_HAVE_IOSCHED_SWITCH
19 #define FIO_HAVE_ODIRECT
21 #define OS_MAP_ANON (MAP_ANONYMOUS)
23 typedef cpu_set_t os_cpu_mask_t;
24 typedef struct drand48_data os_random_state_t;
27 * we want fadvise64 really, but it's so tangled... later
29 #define fadvise(fd, off, len, advice) \
30 posix_fadvise((fd), (off_t)(off), (len), (advice))
32 #define fio_setaffinity(td) \
33 sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask)
34 #define fio_getaffinity(pid, ptr) \
35 sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
37 static inline int ioprio_set(int which, int who, int ioprio)
39 return syscall(__NR_ioprio_set, which, who, ioprio);
42 static _syscall6(int, sys_splice, int, fdin, loff_t *, off_in, int, fdout, loff_t *, off_out, size_t, len, unsigned int, flags);
43 static _syscall4(int, sys_vmsplice, int, fd, const struct iovec *, iov, unsigned long, nr_segs, unsigned int, flags);
44 static _syscall4(int, sys_tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
46 static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
47 size_t len, unsigned long flags)
49 return sys_splice(fdin, off_in, fdout, off_out, len, flags);
52 static inline int tee(int fdin, int fdout, size_t len, unsigned int flags)
54 return sys_tee(fdin, fdout, len, flags);
57 static inline int vmsplice(int fd, const struct iovec *iov,
58 unsigned long nr_segs, unsigned int flags)
60 return sys_vmsplice(fd, iov, nr_segs, flags);
63 #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */
64 #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
65 /* we may still block on the fd we splice */
66 /* from/to, of course */
67 #define SPLICE_F_MORE (0x04) /* expect more data */
68 #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */
70 #define SPLICE_DEF_SIZE (64*1024)
73 IOPRIO_WHO_PROCESS = 1,
78 #define IOPRIO_CLASS_SHIFT 13
81 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
84 static inline int blockdev_size(int fd, unsigned long long *bytes)
86 if (!ioctl(fd, BLKGETSIZE64, bytes))
92 static inline unsigned long long os_phys_mem(void)
96 pagesize = sysconf(_SC_PAGESIZE);
97 pages = sysconf(_SC_PHYS_PAGES);
98 if (pages == -1 || pagesize == -1)
101 return (unsigned long long) pages * (unsigned long long) pagesize;
104 static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
109 static inline long os_random_long(os_random_state_t *rs)
117 static inline double os_random_double(os_random_state_t *rs)