commit db783321cc46f5733815e638975c48a1c63c0d25
Author: Zane Bitter <zbitter@redhat.com>
Date:   Mon Sep 21 09:34:44 2020 -0400

    Fix race condition initialising persistent dict
    
    Change-Id: I6cf13913749e3773e12d9e3c316b166652468edc
    Story: 2008166
    Task: 40916

diff --git a/sushy_tools/emulator/memoize.py b/sushy_tools/emulator/memoize.py
index 88158a3..aaadd7b 100644
--- a/sushy_tools/emulator/memoize.py
+++ b/sushy_tools/emulator/memoize.py
@@ -78,8 +78,7 @@ class PersistentDict(MutableMapping):
 
     def make_permanent(self, dbpath, dbfile):
         dbpath = dbpath or self.DBPATH
-        if not os.path.exists(dbpath):
-            os.makedirs(dbpath)
+        os.makedirs(dbpath, exist_ok=True)
 
         self._dbpath = os.path.join(dbpath, dbfile) + '.sqlite'