[src/trunk]: src/share/man/man9 Clarify uvm_km_alloc is contiguous and zero r...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a9485465d1b3
branches:  trunk
changeset: 335484:a9485465d1b3
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Thu Jan 08 23:43:11 2015 +0000

description:
Clarify uvm_km_alloc is contiguous and zero result means fail.

diffstat:

 share/man/man9/uvm_km.9 |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (23 lines):

diff -r 12655c8949cc -r a9485465d1b3 share/man/man9/uvm_km.9
--- a/share/man/man9/uvm_km.9   Thu Jan 08 23:39:57 2015 +0000
+++ b/share/man/man9/uvm_km.9   Thu Jan 08 23:43:11 2015 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: uvm_km.9,v 1.3 2014/05/14 16:16:55 riastradh Exp $
+.\"    $NetBSD: uvm_km.9,v 1.4 2015/01/08 23:43:11 riastradh Exp $
 .\"
 .\" Copyright (c) 1998 Matthew R. Green
 .\" All rights reserved.
@@ -50,10 +50,11 @@
 interface should be used.
 .Sh FUNCTIONS
 .Fn uvm_km_alloc
-allocates
+allocates a contiguous range of
 .Fa size
 bytes of kernel memory in map
-.Fa map .
+.Fa map
+and returns the virtual address of the range, or returns zero on failure.
 The first address of the allocated memory range will be aligned according to the
 .Fa align
 argument