diff options
Diffstat (limited to 'sys/kern/kern_mbuf.c')
| -rw-r--r-- | sys/kern/kern_mbuf.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/kern/kern_mbuf.c b/sys/kern/kern_mbuf.c index 84682de..7f39bd8 100644 --- a/sys/kern/kern_mbuf.c +++ b/sys/kern/kern_mbuf.c @@ -112,7 +112,25 @@ SYSINIT(tunable_mbinit, SI_SUB_TUNABLES, SI_ORDER_ANY, tunable_mbinit, NULL); SYSCTL_DECL(_kern_ipc); /* XXX: These should be tuneables. Can't change UMA limits on the fly. */ -SYSCTL_INT(_kern_ipc, OID_AUTO, nmbclusters, CTLFLAG_RW, &nmbclusters, 0, +static int +sysctl_nmbclusters(SYSCTL_HANDLER_ARGS) +{ + int error, newnmbclusters; + + newnmbclusters = nmbclusters; + error = sysctl_handle_int(oidp, &newnmbclusters, sizeof(int), req); + if (error == 0 && req->newptr) { + if (newnmbclusters > nmbclusters) { + nmbclusters = newnmbclusters; + uma_zone_set_max(zone_clust, nmbclusters); + EVENTHANDLER_INVOKE(nmbclusters_change); + } else + error = EINVAL; + } + return (error); +} +SYSCTL_PROC(_kern_ipc, OID_AUTO, nmbclusters, CTLTYPE_INT|CTLFLAG_RW, +&nmbclusters, 0, sysctl_nmbclusters, "IU", "Maximum number of mbuf clusters allowed"); SYSCTL_INT(_kern_ipc, OID_AUTO, nmbjumbop, CTLFLAG_RW, &nmbjumbop, 0, "Maximum number of mbuf page size jumbo clusters allowed"); |
