lei: close inotify FD in forked child

Linux::Inotify2 2.3+ includes an ->fh method to give us the
ability to safely close an FD without hitting EBADF (and
automatically use FD_CLOEXEC).

We'll still need a new wrapper class (LI2Wrap) to handle it for
users of old versions, though.

Link: http://lists.schmorp.de/pipermail/perl/2021q3/thread.html

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index d9fd40fd..e6f763e1 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -556,7 +556,7 @@ sub _lei_atfork_child {
         }
         close $listener if $listener;
         undef $listener;
-        undef $dir_idle;
+        $dir_idle->force_close if $dir_idle;
         %PATH2CFG = ();
         $MDIR2CFGPATH = {};
         eval 'no warnings; undef $PublicInbox::LeiNoteEvent::to_flush';