From cfdf5de93930131e16cdced2079ea1053227da4e Mon Sep 17 00:00:00 2001
From: ian <ian@FreeBSD.org>
Date: Wed, 13 Feb 2013 15:09:16 +0000
Subject: Make the F_READAHEAD option to fcntl(2) work as documented:  a value
 of zero now disables read-ahead.  It used to effectively restore the system
 default readahead hueristic if it had been changed; a negative value now
 restores the default.

Reviewed by:	kib
---
 lib/libc/sys/fcntl.2 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/libc')

diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2
index c174563..8e0ca73 100644
--- a/lib/libc/sys/fcntl.2
+++ b/lib/libc/sys/fcntl.2
@@ -28,7 +28,7 @@
 .\"     @(#)fcntl.2	8.2 (Berkeley) 1/12/94
 .\" $FreeBSD$
 .\"
-.Dd July 27, 2012
+.Dd February 8, 2013
 .Dt FCNTL 2
 .Os
 .Sh NAME
@@ -171,7 +171,7 @@ argument,
 which is rounded up to the nearest block size.
 A zero value in
 .Fa arg
-turns off read ahead.
+turns off read ahead, a negative value restores the system default.
 .It Dv F_RDAHEAD
 Equivalent to Darwin counterpart which sets read ahead amount of 128KB
 when the third argument,
-- 
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