diff options
Diffstat (limited to 'sys/kern/kern_sysctl.c')
| -rw-r--r-- | sys/kern/kern_sysctl.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/sys/kern/kern_sysctl.c b/sys/kern/kern_sysctl.c index 82b2bd64b2f..41782ae2fba 100644 --- a/sys/kern/kern_sysctl.c +++ b/sys/kern/kern_sysctl.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_sysctl.c,v 1.177 2009/07/21 14:10:14 millert Exp $ */ +/* $OpenBSD: kern_sysctl.c,v 1.178 2009/08/02 16:28:39 beck Exp $ */ /* $NetBSD: kern_sysctl.c,v 1.17 1996/05/20 17:49:05 mrg Exp $ */ /*- @@ -555,12 +555,21 @@ kern_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, return (sysctl_cptime2(name + 1, namelen -1, oldp, oldlenp, newp, newlen)); case KERN_CACHEPCT: { - int opct = 0; - + int opct, pgs; + opct = bufcachepercent; error = sysctl_int(oldp, oldlenp, newp, newlen, - &opct); + &bufcachepercent); if (error) return(error); + if (bufcachepercent > 90 || bufcachepercent < 5) { + bufcachepercent = opct; + return (EINVAL); + } + if (bufcachepercent != opct) { + pgs = bufcachepercent * physmem / 100; + bufadjust(pgs); /* adjust bufpages */ + bufhighpages = bufpages; /* set high water mark */ + } return(0); } default: |