dskqxs: ignore all EV_DISABLE failures

It's impossible to check for the same errors on non-registered
FDs with the poll(2) and select(2) backends while our epoll
backend has historically ignored failed EPOLL_CTL_DEL ops.  So
just ignore it for now since synchronous use of XhcMset in lei
can trigger the unnecessary EV_DISABLE.

diff --git a/lib/PublicInbox/DSKQXS.pm b/lib/PublicInbox/DSKQXS.pm
index dc6621e469d77577b99fb4547611341299d40b9a..069472fc33a6315a68d5ad98a359e804d2a09724 100644 (file)
--- a/lib/PublicInbox/DSKQXS.pm
+++ b/lib/PublicInbox/DSKQXS.pm
@@ -113,7 +113,7 @@ sub ep_del {
        my ($self, $io, $ev) = @_;
        my $kq = $_[0]->{kq} // return; # called in cleanup
        my $fd = fileno($io);
-       $kq->EV_SET($fd, EVFILT_READ, EV_DISABLE);
+       eval { $kq->EV_SET($fd, EVFILT_READ, EV_DISABLE) };
        eval { $kq->EV_SET($fd, EVFILT_WRITE, EV_DISABLE) };
        0;
 }