[src/trunk]: src/sys/arch/alpha/common Update a comment.

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

details:   https://anonhg.NetBSD.org/src/rev/bf6ddda8de5c
branches:  trunk
changeset: 1013740:bf6ddda8de5c
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sat Sep 05 03:47:16 2020 +0000

description:
Update a comment.

diffstat:

 sys/arch/alpha/common/sgmapvar.h |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (26 lines):

diff -r 90af79423c01 -r bf6ddda8de5c sys/arch/alpha/common/sgmapvar.h
--- a/sys/arch/alpha/common/sgmapvar.h  Sat Sep 05 02:55:38 2020 +0000
+++ b/sys/arch/alpha/common/sgmapvar.h  Sat Sep 05 03:47:16 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sgmapvar.h,v 1.17 2020/06/17 04:12:39 thorpej Exp $ */
+/* $NetBSD: sgmapvar.h,v 1.18 2020/09/05 03:47:16 thorpej Exp $ */
 
 /*-
  * Copyright (c) 1997, 1998, 2001 The NetBSD Foundation, Inc.
@@ -44,12 +44,12 @@
 
 /*
  * An Alpha SGMAP's state information.  Nothing in the sgmap requires
- * locking[*], with the exception of the extent map.  Locking of the
- * extent map is handled within the extent manager itself.
+ * locking[*], with the exception of the vmem arena, which takes care
+ * of it on its own.
  *
  * [*] While the page table is a `global' resource, access to it is
- * controlled by the extent map; once a region has been allocated from
- * the map, that region is effectively `locked'.
+ * controlled by the arenaa; once a region has been allocated from
+ * the arena, that region is effectively `locked'.
  */
 struct alpha_sgmap {
        vmem_t  *aps_arena;             /* arena to manage sgva space */