target setup refactoring: Add a doc comment

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index fd7b238b967e4cf9babfc2d86aeb2078b8b98c4b..d9bb2585580b085fb5452402818d499a669df4ab 100644 (file)
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -2563,6 +2563,9 @@ sub target_var ($$) {
 }
 
 sub target_setup_rootdev_console_inittab ($$$) {
+    # Operators on $gho.
+    # $gho's filesystem is accessed via $ho and $mountpoint;
+    # so maybe $gho is $ho and $mountpoint is "/".
     my ($ho, $gho, $root) = @_;
 
     my $pfx= target_var_prefix($gho);