#ifndef FIO_OS_LINUX_H
#define FIO_OS_LINUX_H
+#define FIO_OS os_linux
+
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <sys/syscall.h>
#include <sys/vfs.h>
+#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <linux/unistd.h>
#include <linux/raw.h>
#include <linux/major.h>
+#include <endian.h>
-#include "indirect.h"
#include "binject.h"
+#include "../file.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 FIO_HAVE_SPLICE
#define FIO_HAVE_IOSCHED_SWITCH
#define FIO_HAVE_ODIRECT
#define FIO_HAVE_HUGETLB
#define FIO_HAVE_RAWBIND
#define FIO_HAVE_BLKTRACE
-#define FIO_HAVE_STRSEP
-#define FIO_HAVE_FALLOCATE
-#define FIO_HAVE_POSIXAIO_FSYNC
#define FIO_HAVE_PSHARED_MUTEX
#define FIO_HAVE_CL_SIZE
#define FIO_HAVE_CGROUPS
-#define FIO_HAVE_FDATASYNC
#define FIO_HAVE_FS_STAT
#define FIO_HAVE_TRIM
#define FIO_HAVE_BINJECT
-#define FIO_HAVE_CLOCK_MONOTONIC
+#define FIO_HAVE_GETTID
+#define FIO_USE_GENERIC_INIT_RANDOM_STATE
-#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
-#define FIO_HAVE_SYNC_FILE_RANGE
+#ifdef MAP_HUGETLB
+#define FIO_HAVE_MMAP_HUGE
#endif
#define OS_MAP_ANON MAP_ANONYMOUS
-#ifndef CLOCK_MONOTONIC
-#define CLOCK_MONOTONIC 1
-#endif
-
typedef cpu_set_t os_cpu_mask_t;
typedef struct drand48_data os_random_state_t;
-/*
- * we want fadvise64 really, but it's so tangled... later
- */
-#ifdef FIO_HAVE_FADVISE
-#define fadvise(fd, off, len, advice) \
- posix_fadvise((fd), (off_t)(off), (len), (advice))
-#endif
-
-/*
- * If you are on an ancient glibc (2.3.2), then define GLIBC_2_3_2 if you want
- * the affinity helpers to work.
- */
-#ifndef GLIBC_2_3_2
+#ifdef CONFIG_3ARG_AFFINITY
#define fio_setaffinity(pid, cpumask) \
sched_setaffinity((pid), sizeof(cpumask), &(cpumask))
#define fio_getaffinity(pid, ptr) \
sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
-#else
+#elif defined(CONFIG_2ARG_AFFINITY)
#define fio_setaffinity(pid, cpumask) \
sched_setaffinity((pid), &(cpumask))
#define fio_getaffinity(pid, ptr) \
sched_getaffinity((pid), (ptr))
#endif
-#define fio_cpu_clear(mask, cpu) CPU_CLR((cpu), (mask))
-#define fio_cpu_set(mask, cpu) CPU_SET((cpu), (mask))
+#define fio_cpu_clear(mask, cpu) (void) CPU_CLR((cpu), (mask))
+#define fio_cpu_set(mask, cpu) (void) CPU_SET((cpu), (mask))
static inline int fio_cpuset_init(os_cpu_mask_t *mask)
{
return syscall(__NR_ioprio_set, which, who, ioprio);
}
-/*
- * Just check for SPLICE_F_MOVE, if that isn't there, assume the others
- * aren't either.
- */
-#ifndef SPLICE_F_MOVE
-#define SPLICE_F_MOVE (0x01) /* move pages instead of copying */
-#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */
- /* we may still block on the fd we splice */
- /* from/to, of course */
-#define SPLICE_F_MORE (0x04) /* expect more data */
-#define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */
-
-static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
- size_t len, unsigned int flags)
-{
- return syscall(__NR_sys_splice, fdin, off_in, fdout, off_out, len, flags);
-}
-
-static inline int tee(int fdin, int fdout, size_t len, unsigned int flags)
-{
- return syscall(__NR_sys_tee, fdin, fdout, len, flags);
-}
-
-static inline int vmsplice(int fd, const struct iovec *iov,
- unsigned long nr_segs, unsigned int flags)
+static inline int gettid(void)
{
- return syscall(__NR_sys_vmsplice, fd, iov, nr_segs, flags);
+ return syscall(__NR_gettid);
}
-#endif
#define SPLICE_DEF_SIZE (64*1024)
-#ifdef FIO_HAVE_SYSLET
-
-struct syslet_uatom;
-struct async_head_user;
-
-/*
- * syslet stuff
- */
-static inline struct syslet_uatom *
-async_exec(struct syslet_uatom *atom, struct async_head_user *ahu)
-{
- return (struct syslet_uatom *) syscall(__NR_async_exec, atom, ahu);
-}
-
-static inline long
-async_wait(unsigned long min_wait_events, unsigned long user_ring_idx,
- struct async_head_user *ahu)
-{
- return syscall(__NR_async_wait, min_wait_events,
- user_ring_idx, ahu);
-}
-
-static inline long async_thread(void *event, struct async_head_user *ahu)
-{
- return syscall(__NR_async_thread, event, ahu);
-}
-
-static inline long umem_add(unsigned long *uptr, unsigned long inc)
-{
- return syscall(__NR_umem_add, uptr, inc);
-}
-#endif /* FIO_HAVE_SYSLET */
-
enum {
IOPRIO_CLASS_NONE,
IOPRIO_CLASS_RT,
#define BLKDISCARD _IO(0x12,119)
#endif
-static inline int blockdev_invalidate_cache(struct fio_file *fd)
+static inline int blockdev_invalidate_cache(struct fio_file *f)
{
return ioctl(f->fd, BLKFLSBUF);
}
#define FIO_MADV_FREE MADV_REMOVE
#endif
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define FIO_LITTLE_ENDIAN
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define FIO_BIG_ENDIAN
+#else
+#error "Unknown endianness"
+#endif
+
+#define fio_swap16(x) __bswap_16(x)
+#define fio_swap32(x) __bswap_32(x)
+#define fio_swap64(x) __bswap_64(x)
+
#define CACHE_LINE_FILE \
"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"