From e3b7d825696c23c23f6bd867de4dbda69be38db8 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Mon, 13 Nov 2017 14:02:16 +0000
Subject: [PATCH] [cache_restore] v2 dirty bitset root wasn't being written to
 superblock.

Resulting in corrupt restored data.
---
 caching/metadata.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/caching/metadata.cc b/caching/metadata.cc
index 91806f4..7b150be 100644
--- a/caching/metadata.cc
+++ b/caching/metadata.cc
@@ -128,6 +128,10 @@ void
 metadata::commit_mappings()
 {
 	sb_.mapping_root = mappings_->get_root();
+	if (sb_.version >= 2) {
+		dirty_bits_->flush();
+		sb_.dirty_root = dirty_bits_->get_root();
+	}
 }
 
 void