From e2ff4b98645e638626ea7255fbcf9699181926df Mon Sep 17 00:00:00 2001
From: Dmitry Chagin <dchagin@FreeBSD.org>
Date: Sun, 24 May 2015 17:40:14 +0000
Subject: [PATCH] As fo_fill_kinfo() does not check fo_fill_kinfo to NULL add a
 fo_fill_kinfo op to eventfdops.

Reported by:	trinity
---
 sys/compat/linux/linux_event.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sys/compat/linux/linux_event.c b/sys/compat/linux/linux_event.c
index d40552931943..fb3ce43c0dd9 100644
--- a/sys/compat/linux/linux_event.c
+++ b/sys/compat/linux/linux_event.c
@@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/mutex.h>
 #include <sys/capability.h>
 #include <sys/types.h>
+#include <sys/user.h>
 #include <sys/file.h>
 #include <sys/filedesc.h>
 #include <sys/errno.h>
@@ -127,6 +128,7 @@ static fo_poll_t	eventfd_poll;
 static fo_kqfilter_t	eventfd_kqfilter;
 static fo_stat_t	eventfd_stat;
 static fo_close_t	eventfd_close;
+static fo_fill_kinfo_t	eventfd_fill_kinfo;
 
 static struct fileops eventfdops = {
 	.fo_read = eventfd_read,
@@ -140,6 +142,7 @@ static struct fileops eventfdops = {
 	.fo_chmod = invfo_chmod,
 	.fo_chown = invfo_chown,
 	.fo_sendfile = invfo_sendfile,
+	.fo_fill_kinfo = eventfd_fill_kinfo,
 	.fo_flags = DFLAG_PASSABLE
 };
 
@@ -828,3 +831,12 @@ eventfd_stat(struct file *fp, struct stat *st, struct ucred *active_cred,
 
 	return (ENXIO);
 }
+
+/*ARGSUSED*/
+static int
+eventfd_fill_kinfo(struct file *fp, struct kinfo_file *kif, struct filedesc *fdp)
+{
+
+	kif->kf_type = KF_TYPE_UNKNOWN;
+	return (0);
+}