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Fix bug, the computation of cpuset_nentries was incorrect, we must do +1 

to be able to address the last 32 bits.

On a machine with 80 CPUs, this caused "cpuctl identify >64" to return
garbage.
This commit is contained in:
maxv 2019-05-11 11:53:55 +00:00
parent c32e3374f1
commit dedb2f3a2d
1 changed files with 3 additions and 3 deletions
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6
common/lib/libc/sys/cpuset.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: cpuset.c,v 1.20 2018/07/26 00:13:19 kamil Exp $ */
/* $NetBSD: cpuset.c,v 1.21 2019/05/11 11:53:55 maxv Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -32,7 +32,7 @@
#ifndef _STANDALONE
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: cpuset.c,v 1.20 2018/07/26 00:13:19 kamil Exp $");
__RCSID("$NetBSD: cpuset.c,v 1.21 2019/05/11 11:53:55 maxv Exp $");
#endif /* LIBC_SCCS and not lint */
#ifdef _LIBC
@ -54,7 +54,7 @@ __RCSID("$NetBSD: cpuset.c,v 1.20 2018/07/26 00:13:19 kamil Exp $");
#define CPUSET_SHIFT 5
#define CPUSET_MASK 31
#define CPUSET_NENTRIES(nc) ((nc) > 32 ? ((nc) >> CPUSET_SHIFT) : 1)
#define CPUSET_NENTRIES(nc) (((nc) >> CPUSET_SHIFT) + 1)
#ifndef __lint__
#define CPUSET_SIZE(n) (sizeof( \
struct { \