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-rw-r--r--sys/vm/vm_meter.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/vm/vm_meter.c b/sys/vm/vm_meter.c
index 2ea5cdad520a..2b8a5d7fd8f3 100644
--- a/sys/vm/vm_meter.c
+++ b/sys/vm/vm_meter.c
@@ -314,3 +314,14 @@ VM_STATS_VM(v_forkpages, "VM pages affected by fork()");
VM_STATS_VM(v_vforkpages, "VM pages affected by vfork()");
VM_STATS_VM(v_rforkpages, "VM pages affected by rfork()");
VM_STATS_VM(v_kthreadpages, "VM pages affected by fork() by kernel");
+
+#ifndef BURN_BRIDGES
+/*
+ * Provide compatibility sysctls for the benefit of old utilities which exit
+ * with an error if they cannot be found.
+ */
+SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_cache_count, CTLFLAG_RD,
+ (u_int *)NULL, 0, "Dummy for compatibility");
+SYSCTL_UINT(_vm_stats_vm, OID_AUTO, v_tcached, CTLFLAG_RD,
+ (u_int *)NULL, 0, "Dummy for compatibility");
+#endif