X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fblock%2Fxen-blkfront.c;h=9c6f3f99208d073ad9cbfd3ff61e69a0e3dc0a02;hb=b23c9cc0ce652089a2f0af8c7f1541f10dc9b5db;hp=8afce67c0aa56293f815f55fb949983082ba2a9d;hpb=877c357e7511395bc923ec9efc2e8b021a17ed79;p=linux-2.6

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8afce67c0a..9c6f3f9920 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -37,6 +37,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/blkdev.h>
+#include <linux/hdreg.h>
 #include <linux/module.h>
 
 #include <xen/xenbus.h>
@@ -135,6 +136,22 @@ static void blkif_restart_queue_callback(void *arg)
 	schedule_work(&info->work);
 }
 
+int blkif_getgeo(struct block_device *bd, struct hd_geometry *hg)
+{
+	/* We don't have real geometry info, but let's at least return
+	   values consistent with the size of the device */
+	sector_t nsect = get_capacity(bd->bd_disk);
+	sector_t cylinders = nsect;
+
+	hg->heads = 0xff;
+	hg->sectors = 0x3f;
+	sector_div(cylinders, hg->heads * hg->sectors);
+	hg->cylinders = cylinders;
+	if ((sector_t)(hg->cylinders + 1) * hg->heads * hg->sectors < nsect)
+		hg->cylinders = 0xffff;
+	return 0;
+}
+
 /*
  * blkif_queue_request
  *
@@ -937,6 +954,7 @@ static struct block_device_operations xlvbd_block_fops =
 	.owner = THIS_MODULE,
 	.open = blkif_open,
 	.release = blkif_release,
+	.getgeo = blkif_getgeo,
 };