+#define FIO_DEF_CL_SIZE 128
+
+static inline int os_cache_line_size(void)
+{
+#ifdef FIO_HAVE_CL_SIZE
+ int ret = arch_cache_line_size();
+
+ if (ret <= 0)
+ return FIO_DEF_CL_SIZE;
+
+ return ret;
+#else
+ return FIO_DEF_CL_SIZE;
+#endif
+}
+
+#ifdef FIO_USE_GENERIC_BDEV_SIZE
+static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
+{
+ off_t end;
+
+ *bytes = 0;
+
+ end = lseek(f->fd, 0, SEEK_END);
+ if (end < 0)
+ return errno;
+
+ *bytes = end;
+ return 0;
+}
+#endif
+
+#ifdef FIO_USE_GENERIC_RAND
+typedef unsigned int os_random_state_t;
+
+static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
+{
+ srand(seed);
+}
+
+static inline long os_random_long(os_random_state_t *rs)
+{
+ long val;
+
+ val = rand_r(rs);
+ return val;
+}
+#endif
+
+#ifndef FIO_HAVE_FS_STAT
+static inline unsigned long long get_fs_size(const char *path)
+{
+ return 0;
+}
+#endif
+
+#ifndef FIO_HAVE_CPU_ONLINE_SYSCONF
+static inline unsigned int cpus_online(void)
+{
+ return sysconf(_SC_NPROCESSORS_ONLN);
+}
+#endif
+
+#ifndef FIO_HAVE_GETTID
+static inline int gettid(void)
+{
+ return getpid();
+}
+#endif
+