From 3582e9068997936ad76d93b3556dd52697473d93 Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Thu, 27 Oct 2005 11:14:15 +0000
Subject: [PATCH] Reworded text around PAGESIZE, noting also that
 sysconf(_SC_PAGESIZE) can be used.

---
 man2/mlock.2 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/man2/mlock.2 b/man2/mlock.2
index 5f0da10f1..19b95fe82 100644
--- a/man2/mlock.2
+++ b/man2/mlock.2
@@ -276,9 +276,11 @@ and
 .BR munlock ()
 are available,
 .B _POSIX_MEMLOCK_RANGE
-is defined in <unistd.h> and the value
+is defined in <unistd.h> and the number of bytes in a page 
+can be determined from the constant 
 .B PAGESIZE
-from <limits.h> indicates the number of bytes per page.
+(if defined) in <limits.h> or by calling
+.IR sysconf(_SC_PAGESIZE) .
 
 On POSIX systems on which
 .BR mlockall ()