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
19 #define OS_MAP_ANON (MAP_ANONYMOUS)
21 typedef cpu_set_t os_cpu_mask_t;
24 * we want fadvise64 really, but it's so tangled... later
26 #define fadvise(fd, off, len, advice) \
27 posix_fadvise((fd), (off_t)(off), (len), (advice))
29 #define fio_setaffinity(td) \
30 sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask)
31 #define fio_getaffinity(pid, ptr) \
32 sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
34 static inline int ioprio_set(int which, int who, int ioprio)
36 return syscall(__NR_ioprio_set, which, who, ioprio);
39 static _syscall6(int, sys_splice, int, fdin, loff_t *, off_in, int, fdout, loff_t *, off_out, size_t, len, unsigned int, flags);
40 static _syscall4(int, sys_vmsplice, int, fd, const struct iovec *, iov, unsigned long, nr_segs, unsigned int, flags);
41 static _syscall4(int, sys_tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
43 static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
44 size_t len, unsigned long flags)
46 return sys_splice(fdin, off_in, fdout, off_out, len, flags);
49 static inline int tee(int fdin, int fdout, size_t len, unsigned int flags)
51 return sys_tee(fdin, fdout, len, flags);
54 static inline int vmsplice(int fd, const struct iovec *iov,
55 unsigned long nr_segs, unsigned int flags)
57 return sys_vmsplice(fd, iov, nr_segs, flags);
60 #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */
61 #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
62 /* we may still block on the fd we splice */
63 /* from/to, of course */
64 #define SPLICE_F_MORE (0x04) /* expect more data */
65 #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */
67 #define SPLICE_DEF_SIZE (64*1024)
70 IOPRIO_WHO_PROCESS = 1,
75 #define IOPRIO_CLASS_SHIFT 13
78 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
81 static inline int blockdev_size(int fd, unsigned long long *bytes)
83 if (!ioctl(fd, BLKGETSIZE64, bytes))