From 7f59604e41f55e0ec352bdd4baa65911f685ac82 Mon Sep 17 00:00:00 2001
From: WANG Chao <chaowang@redhat.com>
Date: Fri, 21 Jun 2013 11:23:59 +0800
Subject: [PATCH] dracut-kdump.sh: recursively umount fs and its submounts

Certain dracut module will mount fs under real root(/sysroot/ or
$NEWROOT/). Thus root fs can not be umounted by `umount /sysroot/`.

We should use `umount -R /sysroot/` to recursively umount root and
its submounts.

v2: do the same for dump_fs() from Baoquan

Signed-off-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
 dracut-kdump.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dracut-kdump.sh b/dracut-kdump.sh
index b7917fd..67ec1ad 100755
--- a/dracut-kdump.sh
+++ b/dracut-kdump.sh
@@ -74,7 +74,7 @@ dump_fs()
     mv $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore-incomplete $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore
 
     echo "kdump: saving vmcore complete"
-    umount $_mp || return 1
+    umount -R $_mp || return 1
     return 0
 }
 
@@ -121,7 +121,7 @@ dump_to_rootfs()
 
     echo "kdump: saving vmcore complete"
     sync
-    umount $NEWROOT || return 1
+    umount -R $NEWROOT || return 1
     return 0
 }