From 1b1b9413854d4aaf21d8eaf529c23567eb5e0daf Mon Sep 17 00:00:00 2001
From: Teodor Mircea Ionita <teodor@mariadb.org>
Date: Thu, 16 Aug 2018 16:39:50 +0300
Subject: [PATCH] MDEV-17022: check if mtr --mem location is writeable

---
 mysql-test/mysql-test-run.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mysql-test/mysql-test-run.pl b/mysql-test/mysql-test-run.pl
index ba49d88a85f..ade3f99104e 100755
--- a/mysql-test/mysql-test-run.pl
+++ b/mysql-test/mysql-test-run.pl
@@ -1457,7 +1457,7 @@ sub command_line_setup {
 
     foreach my $fs (@tmpfs_locations)
     {
-      if ( -d $fs )
+      if ( -d $fs && -w $fs )
       {
 	my $template= "var_${opt_build_thread}_XXXX";
 	$opt_mem= tempdir( $template, DIR => $fs, CLEANUP => 0);