From 8ccb0fadbdaf32277614c2ab9b673f1806f77e8d Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <ksrinivasan@novell.com>
Date: Thu, 11 Mar 2010 13:42:26 -0800
Subject: [PATCH] --- yaml --- r: 208277 b: refs/heads/master c:
 1fa73be6be65028a7543bba8f14474b42e064a1b h: refs/heads/master i:   208275:
 0669042faab1693e4a4a44cc01776ee43855650c v: v3

---
 [refs]                             |  2 +-
 trunk/drivers/block/xen-blkfront.c | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 11bf016a0642..da006563720f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5d7ed20e822ef82117a4d9928b030fa0247b789d
+refs/heads/master: 1fa73be6be65028a7543bba8f14474b42e064a1b
diff --git a/trunk/drivers/block/xen-blkfront.c b/trunk/drivers/block/xen-blkfront.c
index 60006b730872..f47b0961fab1 100644
--- a/trunk/drivers/block/xen-blkfront.c
+++ b/trunk/drivers/block/xen-blkfront.c
@@ -930,9 +930,24 @@ static void blkfront_connect(struct blkfront_info *info)
 	unsigned int binfo;
 	int err;
 
-	if ((info->connected == BLKIF_STATE_CONNECTED) ||
-	    (info->connected == BLKIF_STATE_SUSPENDED) )
+	switch (info->connected) {
+	case BLKIF_STATE_CONNECTED:
+		/*
+		 * Potentially, the back-end may be signalling
+		 * a capacity change; update the capacity.
+		 */
+		err = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+				   "sectors", "%Lu", &sectors);
+		if (XENBUS_EXIST_ERR(err))
+			return;
+		printk(KERN_INFO "Setting capacity to %Lu\n",
+		       sectors);
+		set_capacity(info->gd, sectors);
+
+		/* fall through */
+	case BLKIF_STATE_SUSPENDED:
 		return;
+	}
 
 	dev_dbg(&info->xbdev->dev, "%s:%s.\n",
 		__func__, info->xbdev->otherend);