Merge remote-tracking branch 'origin/pr/619'

* origin/pr/619:
  Trim filesystems after TemplateVM update

Author: marmarek

qubes-rpc/post-install.d/95-fstrim.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/sh
+
+# perform fstrim on all partitions after finishing update-related I/O
+
+# only run if storage is persistent
+if [ -f /run/qubes/persistent-full ]
+then
+    fstrim -av
+fi