[PATCH 1/2] syscall: get rid of epoll_defined() sub

[Eric Wong <e@80x24.org>]

We can just check defined() on the `our' var itself and
save the process several kilobytes of memory.
---
 lib/PublicInbox/DS.pm      | 2 +-
 lib/PublicInbox/Syscall.pm | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index 26840662..a6c43b22 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -126,7 +126,7 @@ sub add_uniq_timer { # ($name, $secs, $coderef, @args) = @_;
 
 # caller sets return value to $Epoll
 sub _InitPoller () {
-	if (PublicInbox::Syscall::epoll_defined())  {
+	if (defined $PublicInbox::Syscall::SYS_epoll_create)  {
 		my $fd = epoll_create();
 		die "epoll_create: $!" if $fd < 0;
 		open($ep_io, '+<&=', $fd) or return;
diff --git a/lib/PublicInbox/Syscall.pm b/lib/PublicInbox/Syscall.pm
index ee4c6107..bda9bbb0 100644
--- a/lib/PublicInbox/Syscall.pm
+++ b/lib/PublicInbox/Syscall.pm
@@ -285,8 +285,6 @@ if ($^O eq "linux") {
 # epoll functions
 ############################################################################
 
-sub epoll_defined { $SYS_epoll_create ? 1 : 0; }
-
 sub epoll_create {
 	syscall($SYS_epoll_create, $no_deprecated ? 0 : 100);
 }