From: Stefan Dinescu <stefan.dinescu@windriver.com>
Date: Wed, 6 Dec 2017 12:50:14 +0000
Subject: Extending nuke_fs_on_resize_failure functionality

---
 lib/puppet/provider/logical_volume/lvm.rb | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/puppet/provider/logical_volume/lvm.rb b/lib/puppet/provider/logical_volume/lvm.rb
index 76c7ec0..6aa2989 100644
--- a/lib/puppet/provider/logical_volume/lvm.rb
+++ b/lib/puppet/provider/logical_volume/lvm.rb
@@ -276,7 +276,16 @@ Puppet::Type.type(:logical_volume).provide :lvm do
           exec_cmd('dd', 'if=/dev/zero', "of=#{path}", "bs=512", "count=16", "conv=notrunc")
           blkid('-g')
         end
-        lvresize( '-f', '-L', "#{new_size}k", path) || fail( "Cannot reduce to size #{new_size} because lvresize failed." )
+        r = exec_cmd('lvresize', '-r', '-f', '-L', "#{new_size}k", path)
+        if r[:exit] != 0
+          if @resource[:nuke_fs_on_resize_failure]
+            exec_cmd('dd', 'if=/dev/zero', "of=#{path}", "bs=512", "count=16", "conv=notrunc")
+            blkid('-g')
+            lvresize( '-f', '-L', "#{new_size}k", path) || fail( "Cannot reduce to size #{new_size} because lvresize failed." )
+          else
+            fail( "Cannot reduce to size #{new_size} because lvresize failed." )
+          end
+        end
       end
     elsif new_size > current_size
       if new_size % vg_extent_size != 0