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Add kern.no_sa_support to easily detect whether a kernel supports 

Scheduler Activation or not. This is a negative name as ld.so.conf
conditionals threat undefined sysctls like 0.
This commit is contained in:
joerg 2007-09-28 21:25:21 +00:00
parent c4ad0e4da1
commit 9e4ace25c5
1 changed files with 8 additions and 2 deletions
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10
sys/kern/init_sysctl.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: init_sysctl.c,v 1.105 2007/08/15 12:07:32 ad Exp $ */
/* $NetBSD: init_sysctl.c,v 1.106 2007/09/28 21:25:21 joerg Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.105 2007/08/15 12:07:32 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: init_sysctl.c,v 1.106 2007/09/28 21:25:21 joerg Exp $");
#include "opt_sysv.h"
#include "opt_multiprocessor.h"
@ -844,6 +844,12 @@ SYSCTL_SETUP(sysctl_kern_setup, "sysctl kern subtree setup")
sysctl_security_setidcore, 0, &security_setidcore_mode,
0,
CTL_CREATE, CTL_EOL);
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE,
CTLTYPE_INT, "no_sa_support",
SYSCTL_DESCR("0 if the kernel supports SA, otherwise it doesn't"),
NULL, 1, NULL, 0,
CTL_KERN, CTL_CREATE, CTL_EOL);
}
SYSCTL_SETUP(sysctl_kern_proc_setup,