#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 <sched.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_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_E4_ENG
+
+#ifdef MAP_HUGETLB
+#define FIO_HAVE_MMAP_HUGE
+#endif
+
+/*
+ * Can only enable this for newer glibcs, or the header and defines are
+ * missing
+ */
+#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6
+#define FIO_HAVE_FALLOCATE
+#endif
+#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 8
+#define FIO_HAVE_LINUX_FALLOCATE
+#endif
+
+#ifdef FIO_HAVE_LINUX_FALLOCATE
+#define FIO_HAVE_FALLOC_ENG
+#endif
+
+#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
+#define FIO_HAVE_SYNC_FILE_RANGE
+#endif
#define OS_MAP_ANON MAP_ANONYMOUS
#define CLOCK_MONOTONIC 1
#endif
-#ifdef FIO_HAVE_CPU_AFFINITY
typedef cpu_set_t os_cpu_mask_t;
-#else
-typedef int os_cpu_mask_t;
-#endif
+
typedef struct drand48_data os_random_state_t;
/*
* If you are on an ancient glibc (2.3.2), then define GLIBC_2_3_2 if you want
* the affinity helpers to work.
*/
-#ifdef FIO_HAVE_CPU_AFFINITY
#ifndef GLIBC_2_3_2
-#define fio_setaffinity(td) \
- sched_setaffinity((td)->pid, sizeof((td)->o.cpumask), &(td)->o.cpumask)
+#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
-#define fio_setaffinity(td) \
- sched_setaffinity((td)->pid, &(td)->o.cpumask)
+#define fio_setaffinity(pid, cpumask) \
+ sched_setaffinity((pid), &(cpumask))
#define fio_getaffinity(pid, ptr) \
sched_getaffinity((pid), (ptr))
#endif
-#endif
+
+#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)
+{
+ CPU_ZERO(mask);
+ return 0;
+}
+
+static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
+{
+ return 0;
+}
+
+#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.
#define BLKFLSBUF _IO(0x12,97)
#endif
-static inline int blockdev_invalidate_cache(int fd)
+#ifndef BLKDISCARD
+#define BLKDISCARD _IO(0x12,119)
+#endif
+
+static inline int blockdev_invalidate_cache(struct fio_file *f)
{
- return ioctl(fd, BLKFLSBUF);
+ return ioctl(f->fd, BLKFLSBUF);
}
-static inline int blockdev_size(int fd, unsigned long long *bytes)
+static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
{
- if (!ioctl(fd, BLKGETSIZE64, bytes))
+ if (!ioctl(f->fd, BLKGETSIZE64, bytes))
return 0;
return errno;
#define FIO_O_NOATIME 0
#endif
+#ifdef MADV_REMOVE
+#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"
+
+static inline int arch_cache_line_size(void)
+{
+ char size[32];
+ int fd, ret;
+
+ fd = open(CACHE_LINE_FILE, O_RDONLY);
+ if (fd < 0)
+ return -1;
+
+ ret = read(fd, size, sizeof(size));
+
+ close(fd);
+
+ if (ret <= 0)
+ return -1;
+ else
+ return atoi(size);
+}
+
+static inline unsigned long long get_fs_size(const char *path)
+{
+ unsigned long long ret;
+ struct statfs s;
+
+ if (statfs(path, &s) < 0)
+ return -1ULL;
+
+ ret = s.f_bsize;
+ ret *= (unsigned long long) s.f_bfree;
+ return ret;
+}
+
+static inline int os_trim(int fd, unsigned long long start,
+ unsigned long long len)
+{
+ uint64_t range[2];
+
+ range[0] = start;
+ range[1] = len;
+
+ if (!ioctl(fd, BLKDISCARD, range))
+ return 0;
+
+ return errno;
+}
+
#endif