pvops/xen-blkfront: handle FDEJECT as detach request (#630)

patches.xen/pvops-blkfront-eject-support.patch

@@ -0,0 +1,20 @@
+--- linux-3.4.1.orig/drivers/block/xen-blkfront.c	2012-06-01 09:18:44.000000000 +0200
++++ linux-3.4.1/drivers/block/xen-blkfront.c	2012-07-15 15:54:31.350255623 +0200
+@@ -44,6 +44,7 @@
+ #include <linux/mutex.h>
+ #include <linux/scatterlist.h>
+ #include <linux/bitmap.h>
++#include <linux/fd.h>
+ 
+ #include <xen/xen.h>
+ #include <xen/xenbus.h>
+@@ -241,6 +264,9 @@
+ 			return 0;
+ 		return -EINVAL;
+ 	}
++	case FDEJECT:
++		xenbus_switch_state(info->xbdev, XenbusStateClosing);
++		return 0;
+ 
+ 	default:
+ 		/*printk(KERN_ALERT "ioctl %08x not supported by Xen blkdev\n",

series-pvops.conf

@@ -17,3 +17,4 @@ patches.xen/pvops-3.4-x86-cpa-Use-pte_attrs-instead-of-pte_flags-on-CPA-se.patch
 # Additional features
 patches.xen/pvops-3.4-0100-usb-xen-pvusb-driver.patch
 patches.xen/pvops-blkfront-removable-flag.patch
+patches.xen/pvops-blkfront-eject-support.patch