From 1947c8a6d178b14df29833f8b3f4be6687286390 Mon Sep 17 00:00:00 2001
From: Jilles Tjoelker <jilles@FreeBSD.org>
Date: Sun, 3 Nov 2013 23:06:24 +0000
Subject: [PATCH] kqueue: Change error for kqueues rlimit from EMFILE to ENOMEM
 and document this error condition in the kqueue(2) manual page.

Discussed with:	kib
---
 lib/libc/sys/kqueue.2 | 9 ++++++++-
 sys/kern/kern_event.c | 2 +-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/libc/sys/kqueue.2 b/lib/libc/sys/kqueue.2
index ed3a8adfa73..75c8207e744 100644
--- a/lib/libc/sys/kqueue.2
+++ b/lib/libc/sys/kqueue.2
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 21, 2013
+.Dd November 4, 2013
 .Dt KQUEUE 2
 .Os
 .Sh NAME
@@ -532,6 +532,13 @@ system call fails if:
 .Bl -tag -width Er
 .It Bq Er ENOMEM
 The kernel failed to allocate enough memory for the kernel queue.
+.It Bq Er ENOMEM
+The
+.Dv RLIMIT_KQUEUES
+rlimit
+(see
+.Xr getrlimit 2 )
+for the current user would be exceeded.
 .It Bq Er EMFILE
 The per-process descriptor table is full.
 .It Bq Er ENFILE
diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
index a80e50d1fab..2b08c1b4b77 100644
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -712,7 +712,7 @@ sys_kqueue(struct thread *td, struct kqueue_args *uap)
 	    RLIMIT_KQUEUES))) {
 		PROC_UNLOCK(p);
 		crfree(cred);
-		return (EMFILE);
+		return (ENOMEM);
 	}
 	PROC_UNLOCK(p);