From 31a4787b803d523363d9d6f3f9b8a2e77acc4b89 Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Tue, 17 Oct 2017 02:51:45 +0000
Subject: write.2: correct maximum nbytes size for EINVAL error

In FreeBSD 11 and later debug.iosize_max_clamp defaults to 0, and the
maximum nbytes count for write(2) is SSIZE_MAX. Update the man page to
document this, and mention the sysctl that can be set to obtain the
previous behaviour.

PR:		196666
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
---
 lib/libc/sys/write.2 | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/libc/sys/write.2 b/lib/libc/sys/write.2
index 823201362f28..9d469b5e9f00 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 December 15, 2015
+.Dd October 16, 2017
 .Dt WRITE 2
 .Os
 .Sh NAME
@@ -199,7 +199,12 @@ to enable writing on the disk label area.
 The value
 .Fa nbytes
 is greater than
-.Dv INT_MAX .
+.Dv SSIZE_MAX
+(or greater than
+.Dv INT_MAX ,
+if the sysctl
+.Va debug.iosize_max_clamp
+is non-zero).
 .El
 .Pp
 In addition,
-- 
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