1 files changed, 3 insertions, 0 deletions
diff --git a/check b/check
index 2ea2920f..4b0ebad6 100755
--- a/check
+++ b/check
@@ -33,6 +33,9 @@ _err_msg=""
 # start the initialisation work now
 iam=check
 
+# mkfs.xfs uses the presence of both of these variables to enable formerly
+# supported tiny filesystem configurations that fstests use for fuzz testing
+# in a controlled environment
 export MSGVERB="text:action"
 export QA_CHECK_FS=${QA_CHECK_FS:=true}