From c64646f09c291e22bf10584bd842003a7980eb78 Mon Sep 17 00:00:00 2001
From: Steven Noonan <snoonan@amazon.com>
Date: Fri, 22 Apr 2011 23:07:46 -0700
Subject: [PATCH 1/1] os-mac.h: implement blockdev_size()

Signed-off-by: Steven Noonan <snoonan@amazon.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 os/os-mac.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/os/os-mac.h b/os/os-mac.h
index 1a0a8875..1d671414 100644
--- a/os/os-mac.h
+++ b/os/os-mac.h
@@ -2,6 +2,7 @@
 #define FIO_OS_APPLE_H
 
 #include <errno.h>
+#include <sys/disk.h>
 #include <sys/sysctl.h>
 #include <sys/time.h>
 #include <unistd.h>
@@ -19,7 +20,6 @@
 
 #define FIO_HAVE_POSIXAIO
 #define FIO_HAVE_CLOCK_MONOTONIC
-#define FIO_USE_GENERIC_BDEV_SIZE
 #define FIO_USE_GENERIC_RAND
 
 #define OS_MAP_ANON		MAP_ANON
@@ -107,6 +107,17 @@ static inline int timer_delete(timer_t timer)
 	return 0;
 }
 
+static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
+{
+    uint64_t temp = 1;
+    if (ioctl(f->fd, DKIOCGETBLOCKCOUNT, bytes) == -1)
+		return errno;
+    if (ioctl(f->fd, DKIOCGETBLOCKSIZE, &temp) == -1)
+		return errno;
+    (*bytes) *= temp;
+    return 0;
+}
+
 static inline int blockdev_invalidate_cache(struct fio_file *f)
 {
 	return EINVAL;
-- 
2.25.1