From 0fda26dbb363d0761fc0f01e65620542a53aec16 Mon Sep 17 00:00:00 2001
From: John-Mark Gurney <jmg@FreeBSD.org>
Date: Mon, 26 Oct 2020 00:37:31 +0000
Subject: [PATCH] update write(2)'s iovec limit w/ info about the
 iosize_max_clamp sysctl...

---
 lib/libc/sys/write.2 | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lib/libc/sys/write.2 b/lib/libc/sys/write.2
index fb70c5e4186..f05db0de81c 100644
--- a/lib/libc/sys/write.2
+++ b/lib/libc/sys/write.2
@@ -28,7 +28,7 @@
 .\"     @(#)write.2	8.5 (Berkeley) 4/2/94
 .\" $FreeBSD$
 .\"
-.Dd March 30, 2020
+.Dd October 25, 2020
 .Dt WRITE 2
 .Os
 .Sh NAME
@@ -240,9 +240,13 @@ array was negative.
 .It Bq Er EINVAL
 The sum of the
 .Fa iov_len
-values in the
-.Fa iov
-array overflowed a 32-bit integer.
+values is greater than
+.Dv SSIZE_MAX
+(or greater than
+.Dv INT_MAX ,
+if the sysctl
+.Va debug.iosize_max_clamp
+is non-zero).
 .It Bq Er ENOBUFS
 The mbuf pool has been completely exhausted when writing to a socket.
 .El