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
20 #define OS_MAP_ANON (MAP_ANONYMOUS)
22 typedef cpu_set_t os_cpu_mask_t;
25 * we want fadvise64 really, but it's so tangled... later
27 #define fadvise(fd, off, len, advice) \
28 posix_fadvise((fd), (off_t)(off), (len), (advice))
30 #define fio_setaffinity(td) \
31 sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask)
32 #define fio_getaffinity(pid, ptr) \
33 sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
35 static inline int ioprio_set(int which, int who, int ioprio)
37 return syscall(__NR_ioprio_set, which, who, ioprio);
40 static _syscall6(int, sys_splice, int, fdin, loff_t *, off_in, int, fdout, loff_t *, off_out, size_t, len, unsigned int, flags);
41 static _syscall4(int, sys_vmsplice, int, fd, const struct iovec *, iov, unsigned long, nr_segs, unsigned int, flags);
42 static _syscall4(int, sys_tee, int, fdin, int, fdout, size_t, len, unsigned int, flags);
44 static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
45 size_t len, unsigned long flags)
47 return sys_splice(fdin, off_in, fdout, off_out, len, flags);
50 static inline int tee(int fdin, int fdout, size_t len, unsigned int flags)
52 return sys_tee(fdin, fdout, len, flags);
55 static inline int vmsplice(int fd, const struct iovec *iov,
56 unsigned long nr_segs, unsigned int flags)
58 return sys_vmsplice(fd, iov, nr_segs, flags);
61 #define SPLICE_F_MOVE (0x01) /* move pages instead of copying */
62 #define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
63 /* we may still block on the fd we splice */
64 /* from/to, of course */
65 #define SPLICE_F_MORE (0x04) /* expect more data */
66 #define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */
68 #define SPLICE_DEF_SIZE (64*1024)
71 IOPRIO_WHO_PROCESS = 1,
76 #define IOPRIO_CLASS_SHIFT 13
79 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
82 static inline int blockdev_size(int fd, unsigned long long *bytes)
84 if (!ioctl(fd, BLKGETSIZE64, bytes))
90 static inline unsigned long long os_phys_mem(void)
94 pagesize = sysconf(_SC_PAGESIZE);
95 pages = sysconf(_SC_PHYS_PAGES);
96 if (pages == -1 || pagesize == -1)
99 return (unsigned long long) pages * (unsigned long long) pagesize;