Staging: hv: Remove osd layer

The OSD layer was a wrapper around native interfaces
adding little value and was infact buggy -
refer to the osd_wait.patch for details.
This patch gets rid of the OSD abstraction.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/Makefile

@@ -4,7 +4,7 @@ obj-$(CONFIG_HYPERV_BLOCK)	+= hv_blkvsc.o
 obj-$(CONFIG_HYPERV_NET)	+= hv_netvsc.o
 obj-$(CONFIG_HYPERV_UTILS)	+= hv_utils.o
 
-hv_vmbus-y := vmbus_drv.o osd.o \
+hv_vmbus-y := vmbus_drv.o \
 		 hv.o connection.o channel.o \
 		 channel_mgmt.o ring_buffer.o
 hv_storvsc-y := storvsc_drv.o storvsc.o

drivers/staging/hv/blkvsc.c

@@ -22,7 +22,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "storvsc.c"
 
 static const char *g_blk_driver_name = "blkvsc";

drivers/staging/hv/blkvsc_drv.c

@@ -31,7 +31,7 @@
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_dbg.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "version_info.h"
 #include "vmbus.h"

drivers/staging/hv/channel.c

@@ -24,10 +24,13 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/module.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "vmbus_private.h"
 
+#define NUM_PAGES_SPANNED(addr, len) \
+((PAGE_ALIGN(addr + len) >> PAGE_SHIFT) - (addr >> PAGE_SHIFT))
+
 /* Internal routines */
 static int create_gpadl_header(
 	void *kbuffer,	/* must be phys and virt contiguous */

drivers/staging/hv/channel_mgmt.c

@@ -26,7 +26,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/completion.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "vmbus_private.h"
 #include "utils.h"

drivers/staging/hv/connection.c

@@ -26,7 +26,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "vmbus_private.h"
 

drivers/staging/hv/hv.c

@@ -23,7 +23,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "vmbus_private.h"
 

drivers/staging/hv/hv_api.h

@@ -23,6 +23,11 @@
 #ifndef __HV_API_H
 #define __HV_API_H
 
+struct hv_guid {
+	unsigned char data[16];
+};
+
+
 
 /* Status codes for hypervisor operations. */
 

drivers/staging/hv/hv_kvp.c

@@ -28,7 +28,7 @@
 #include <linux/workqueue.h>
 
 #include "logging.h"
-#include "osd.h"
+#include "hv_api.h"
 #include "vmbus.h"
 #include "vmbus_packet_format.h"
 #include "vmbus_channel_interface.h"

drivers/staging/hv/hv_util.c

@@ -28,7 +28,7 @@
 #include <linux/pci.h>
 
 #include "logging.h"
-#include "osd.h"
+#include "hv_api.h"
 #include "vmbus.h"
 #include "vmbus_packet_format.h"
 #include "vmbus_channel_interface.h"

drivers/staging/hv/logging.h

@@ -25,6 +25,9 @@
 #ifndef _LOGGING_H_
 #define _LOGGING_H_
 
+#define LOWORD(dw) ((unsigned short)(dw))
+#define HIWORD(dw) ((unsigned short)(((unsigned int) (dw) >> 16) & 0xFFFF))
+
 /* #include <linux/init.h> */
 /* #include <linux/module.h> */
 

drivers/staging/hv/netvsc.c

@@ -25,7 +25,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/slab.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "netvsc.h"
 #include "rndis_filter.h"

drivers/staging/hv/netvsc_drv.c

@@ -36,7 +36,7 @@
 #include <net/route.h>
 #include <net/sock.h>
 #include <net/pkt_sched.h>
-#include "osd.h"
+#include "hv_api.h"
 #include "logging.h"
 #include "version_info.h"
 #include "vmbus.h"

drivers/staging/hv/ring_buffer.c

@@ -23,7 +23,6 @@
 
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include "osd.h"
 #include "logging.h"
 #include "ring_buffer.h"