driver core: fix up Kconfig text for CONFIG_SYSFS_DEPRECATED
[sfrench/cifs-2.6.git] / drivers / block / xen-blkfront.c
index 8afce67c0aa56293f815f55fb949983082ba2a9d..9c6f3f99208d073ad9cbfd3ff61e69a0e3dc0a02 100644 (file)
@@ -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,
 };