D39271.diff
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	diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
	--- a/sys/kern/kern_event.c
	+++ b/sys/kern/kern_event.c
	@@ -1057,6 +1057,19 @@
	return (kern_kqueue(td, 0, NULL));
	}

	+int
	+sys_kqueue1(struct thread td, struct kqueue1_args uap)
	+{
	+ int flags;
	+
	+ if ((uap->flags & ~(KQUEUE_CLOEXEC)) != 0)
	+ return (EINVAL);
	+ flags = 0;
	+ if ((uap->flags & KQUEUE_CLOEXEC) != 0)
	+ flags \|= O_CLOEXEC;
	+ return (kern_kqueue(td, flags, NULL));
	+}
	+
	static void
	kqueue_init(struct kqueue *kq)
	{
	diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master
	--- a/sys/kern/syscalls.master
	+++ b/sys/kern/syscalls.master
	@@ -3306,5 +3306,10 @@
	u_int flags,
	);
	}
	+583 AUE_KQUEUE STD\|CAPENABLED {
	+ int kqueue1(
	+ u_int flags
	+ );
	+ }

	; vim: syntax=off
	diff --git a/sys/sys/event.h b/sys/sys/event.h
	--- a/sys/sys/event.h
	+++ b/sys/sys/event.h
	@@ -218,6 +218,9 @@
	#define NOTE_NSECONDS 0x00000008 /* data is nanoseconds */
	#define NOTE_ABSTIME 0x00000010 /* timeout is absolute */

	+/* Flags for kqueue1(2) */
	+#define KQUEUE_CLOEXEC 0x00000001 /* close on exec */
	+
	struct knote;
	SLIST_HEAD(klist, knote);
	struct kqueue;