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From: Andriy Gapon <avg@FreeBSD.org>
Date: Sat, 16 Oct 2010 11:41:21 +0000 (UTC)
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Subject: svn commit: r213922 - stable/7/sys/kern
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Author: avg
Date: Sat Oct 16 11:41:20 2010
New Revision: 213922
URL: http://svn.freebsd.org/changeset/base/213922

Log:
  MFC r213527: vm.kmem_map_size: a sysctl to query current kmem_map->size

Modified:
  stable/7/sys/kern/kern_malloc.c
Directory Properties:
  stable/7/sys/   (props changed)
  stable/7/sys/cddl/contrib/opensolaris/   (props changed)
  stable/7/sys/contrib/dev/acpica/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)

Modified: stable/7/sys/kern/kern_malloc.c
==============================================================================
--- stable/7/sys/kern/kern_malloc.c	Sat Oct 16 11:24:27 2010	(r213921)
+++ stable/7/sys/kern/kern_malloc.c	Sat Oct 16 11:41:20 2010	(r213922)
@@ -197,6 +197,11 @@ static u_int vm_kmem_size_scale;
 SYSCTL_UINT(_vm, OID_AUTO, kmem_size_scale, CTLFLAG_RDTUN, &vm_kmem_size_scale, 0,
     "Scale factor for kernel memory size");
 
+static int sysctl_kmem_map_size(SYSCTL_HANDLER_ARGS);
+SYSCTL_PROC(_vm, OID_AUTO, kmem_map_size,
+    CTLFLAG_RD | CTLTYPE_ULONG | CTLFLAG_MPSAFE, NULL, 0,
+    sysctl_kmem_map_size, "LU", "Current kmem_map allocation size");
+
 /*
  * The malloc_mtx protects the kmemstatistics linked list.
  */
@@ -233,6 +238,15 @@ SYSCTL_INT(_debug_malloc, OID_AUTO, fail
     &malloc_failure_count, 0, "Number of imposed M_NOWAIT malloc failures");
 #endif
 
+static int
+sysctl_kmem_map_size(SYSCTL_HANDLER_ARGS)
+{
+	u_long size;
+
+	size = kmem_map->size;
+	return (sysctl_handle_long(oidp, &size, 0, req));
+}
+
 int
 malloc_last_fail(void)
 {