#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/sysmacros.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 <linux/fs.h>
+#include <scsi/sg.h>
-#include "indirect.h"
+#include "./os-linux-syscall.h"
#include "binject.h"
#include "../file.h"
-#define FIO_HAVE_LIBAIO
-#define FIO_HAVE_POSIXAIO
-#define FIO_HAVE_FADVISE
+#ifndef __has_builtin // Optional of course.
+ #define __has_builtin(x) 0 // Compatibility with non-clang compilers.
+#endif
+
#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_IOPRIO_CLASS
#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
+#define FIO_HAVE_PWRITEV2
+#define FIO_HAVE_SHM_ATTACH_REMOVED
-/*
- * Can only enable this for newer glibcs, or the header and defines are
- * missing
- */
-#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6
-#define FIO_HAVE_LINUX_FALLOCATE
-#endif
-
-#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))
+#define fio_cpu_isset(mask, cpu) CPU_ISSET((cpu), (mask))
+#define fio_cpu_count(mask) CPU_COUNT((mask))
static inline int fio_cpuset_init(os_cpu_mask_t *mask)
{
#define FIO_MAX_CPUS CPU_SETSIZE
-static inline int ioprio_set(int which, int who, int ioprio)
-{
- return syscall(__NR_ioprio_set, which, who, ioprio);
-}
-
-static inline int gettid(void)
-{
- return syscall(__NR_gettid);
-}
-
-/*
- * 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)
-{
- return syscall(__NR_sys_vmsplice, fd, iov, nr_segs, flags);
-}
-#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 IOPRIO_BITS 16
#define IOPRIO_CLASS_SHIFT 13
+#define IOPRIO_MIN_PRIO 0 /* highest priority */
+#define IOPRIO_MAX_PRIO 7 /* lowest priority */
+
+#define IOPRIO_MIN_PRIO_CLASS 0
+#define IOPRIO_MAX_PRIO_CLASS 3
+
+static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
+{
+ /*
+ * If no class is set, assume BE
+ */
+ if (!ioprio_class)
+ ioprio_class = IOPRIO_CLASS_BE;
+
+ ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
+ return syscall(__NR_ioprio_set, which, who, ioprio);
+}
+
+static inline int gettid(void)
+{
+ return syscall(__NR_gettid);
+}
+
+#define SPLICE_DEF_SIZE (64*1024)
+
#ifndef BLKGETSIZE64
#define BLKGETSIZE64 _IOR(0x12,114,size_t)
#endif
#define FIO_O_NOATIME 0
#endif
+#ifdef O_ATOMIC
+#define OS_O_ATOMIC O_ATOMIC
+#else
+#define OS_O_ATOMIC 040000000
+#endif
+
#ifdef MADV_REMOVE
#define FIO_MADV_FREE MADV_REMOVE
#endif
+/* Check for GCC or Clang byte swap intrinsics */
+#if (__has_builtin(__builtin_bswap16) && __has_builtin(__builtin_bswap32) \
+ && __has_builtin(__builtin_bswap64)) || (__GNUC__ > 4 \
+ || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) /* fio_swapN */
+#define fio_swap16(x) __builtin_bswap16(x)
+#define fio_swap32(x) __builtin_bswap32(x)
+#define fio_swap64(x) __builtin_bswap64(x)
+#else
+#include <byteswap.h>
+#define fio_swap16(x) bswap_16(x)
+#define fio_swap32(x) bswap_32(x)
+#define fio_swap64(x) bswap_64(x)
+#endif /* fio_swapN */
+
#define CACHE_LINE_FILE \
"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
return atoi(size);
}
-static inline unsigned long long get_fs_size(const char *path)
+#ifdef __powerpc64__
+#define FIO_HAVE_CPU_ONLINE_SYSCONF
+static inline unsigned int cpus_online(void)
+{
+ return sysconf(_SC_NPROCESSORS_CONF);
+}
+#endif
+
+static inline unsigned long long get_fs_free_size(const char *path)
{
unsigned long long ret;
struct statfs s;
return ret;
}
-static inline int os_trim(int fd, unsigned long long start,
+static inline int os_trim(struct fio_file *f, unsigned long long start,
unsigned long long len)
{
uint64_t range[2];
range[0] = start;
range[1] = len;
- if (!ioctl(fd, BLKDISCARD, range))
+ if (!ioctl(f->fd, BLKDISCARD, range))
return 0;
return errno;
}
+#ifdef CONFIG_SCHED_IDLE
+static inline int fio_set_sched_idle(void)
+{
+ struct sched_param p = { .sched_priority = 0, };
+ return sched_setscheduler(gettid(), SCHED_IDLE, &p);
+}
+#endif
+
+#ifndef F_GET_RW_HINT
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+#define F_GET_RW_HINT (F_LINUX_SPECIFIC_BASE + 11)
+#define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12)
+#define F_GET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 13)
+#define F_SET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 14)
+#endif
+
+#ifndef RWH_WRITE_LIFE_NONE
+#define RWH_WRITE_LIFE_NOT_SET 0
+#define RWH_WRITE_LIFE_NONE 1
+#define RWH_WRITE_LIFE_SHORT 2
+#define RWH_WRITE_LIFE_MEDIUM 3
+#define RWH_WRITE_LIFE_LONG 4
+#define RWH_WRITE_LIFE_EXTREME 5
+#endif
+
+#define FIO_HAVE_WRITE_HINT
+
+#ifndef RWF_HIPRI
+#define RWF_HIPRI 0x00000001
+#endif
+#ifndef RWF_DSYNC
+#define RWF_DSYNC 0x00000002
+#endif
+#ifndef RWF_SYNC
+#define RWF_SYNC 0x00000004
+#endif
+
+#ifndef RWF_WRITE_LIFE_SHIFT
+#define RWF_WRITE_LIFE_SHIFT 4
+#define RWF_WRITE_LIFE_SHORT (1 << RWF_WRITE_LIFE_SHIFT)
+#define RWF_WRITE_LIFE_MEDIUM (2 << RWF_WRITE_LIFE_SHIFT)
+#define RWF_WRITE_LIFE_LONG (3 << RWF_WRITE_LIFE_SHIFT)
+#define RWF_WRITE_LIFE_EXTREME (4 << RWF_WRITE_LIFE_SHIFT)
+#endif
+
+#ifndef CONFIG_PWRITEV2
+#ifdef __NR_preadv2
+static inline void make_pos_h_l(unsigned long *pos_h, unsigned long *pos_l,
+ off_t offset)
+{
+#if BITS_PER_LONG == 64
+ *pos_l = offset;
+ *pos_h = 0;
+#else
+ *pos_l = offset & 0xffffffff;
+ *pos_h = ((uint64_t) offset) >> 32;
+#endif
+}
+static inline ssize_t preadv2(int fd, const struct iovec *iov, int iovcnt,
+ off_t offset, unsigned int flags)
+{
+ unsigned long pos_l, pos_h;
+
+ make_pos_h_l(&pos_h, &pos_l, offset);
+ return syscall(__NR_preadv2, fd, iov, iovcnt, pos_l, pos_h, flags);
+}
+static inline ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt,
+ off_t offset, unsigned int flags)
+{
+ unsigned long pos_l, pos_h;
+
+ make_pos_h_l(&pos_h, &pos_l, offset);
+ return syscall(__NR_pwritev2, fd, iov, iovcnt, pos_l, pos_h, flags);
+}
+#else
+static inline ssize_t preadv2(int fd, const struct iovec *iov, int iovcnt,
+ off_t offset, unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+static inline ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt,
+ off_t offset, unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+#endif /* __NR_preadv2 */
+#endif /* CONFIG_PWRITEV2 */
+
+static inline int shm_attach_to_open_removed(void)
+{
+ return 1;
+}
+
+#ifdef CONFIG_LINUX_FALLOCATE
+#define FIO_HAVE_NATIVE_FALLOCATE
+static inline bool fio_fallocate(struct fio_file *f, uint64_t offset,
+ uint64_t len)
+{
+ int ret;
+ ret = fallocate(f->fd, 0, 0, len);
+ if (ret == 0)
+ return true;
+
+ /* Work around buggy old glibc versions... */
+ if (ret > 0)
+ errno = ret;
+
+ return false;
+}
+#endif
+
#endif
projects / fio.git / blobdiff