FIO Windows update

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/os/os.h b/os/os.h
index 95f0ff2..92b6950 100644
--- a/os/os.h
+++ b/os/os.h
@@ -4,6 +4,7 @@
 #include <sys/types.h>
 #include <pthread.h>
 #include <unistd.h>
+#include <stdlib.h>
 
 #if defined(__linux__)
 #include "os-linux.h"
@@ -45,7 +46,7 @@
 #endif
 
 #ifndef FIO_HAVE_FADVISE
-#define fadvise(fd, off, len, advice)	(0)
+#define posix_fadvise(fd, off, len, advice)	(0)
 
 #ifndef POSIX_FADV_DONTNEED
 #define POSIX_FADV_DONTNEED	(0)
@@ -91,6 +92,12 @@
 #define OS_RAND_MAX			RAND_MAX
 #endif
 
+#ifdef FIO_HAVE_CLOCK_MONOTONIC
+#define FIO_TIMER_CLOCK CLOCK_MONOTONIC
+#else
+#define FIO_TIMER_CLOCK CLOCK_REALTIME
+#endif
+
 #ifndef FIO_HAVE_RAWBIND
 #define fio_lookup_raw(dev, majdev, mindev)	1
 #endif
@@ -124,13 +131,13 @@
 }
 
 #ifdef FIO_USE_GENERIC_BDEV_SIZE
-static inline int blockdev_size(int fd, unsigned long long *bytes)
+static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
 {
 	off_t end;
 
 	*bytes = 0;
 
-	end = lseek(fd, 0, SEEK_END);
+	end = lseek(f->fd, 0, SEEK_END);
 	if (end < 0)
 		return errno;