Only flag sync_file_range() support for newer Linux versions

[fio.git] / os / os-linux.h

diff --git a/os/os-linux.h b/os/os-linux.h
index ea2db9b8023c75eba4cb949d451aafe1bd4d2dab..df0ec2dbdb51a692cc52f93097a0238844aad1ef 100644 (file)
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -4,8 +4,11 @@
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 #include <sys/syscall.h>
+#include <sys/vfs.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>
@@ -28,6 +31,15 @@
 #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
+
+#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
+#define FIO_HAVE_SYNC_FILE_RANGE
+#endif
 
 #define OS_MAP_ANON            MAP_ANONYMOUS
 
@@ -35,11 +47,8 @@
 #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;
 
 /*
@@ -55,20 +64,30 @@ typedef struct drand48_data os_random_state_t;
  * the affinity helpers to work.
  */
 #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
 
 #define fio_cpu_clear(mask, cpu)       CPU_CLR((cpu), (mask))
 #define fio_cpu_set(mask, cpu)         CPU_SET((cpu), (mask))
-#define fio_cpuset_init(td)            CPU_ZERO(&(td)->o.cpumask)
+
+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
 
@@ -240,4 +259,43 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 #define FIO_O_NOATIME  0
 #endif
 
+#ifdef MADV_REMOVE
+#define FIO_MADV_FREE  MADV_REMOVE
+#endif
+
+#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;
+}
+
 #endif