From owner-svn-src-head@freebsd.org  Wed Aug 21 16:01:17 2019
Return-Path: <owner-svn-src-head@freebsd.org>
Delivered-To: svn-src-head@mailman.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.nyi.freebsd.org (Postfix) with ESMTP id ECFA4CC452;
 Wed, 21 Aug 2019 16:01:17 +0000 (UTC)
 (envelope-from markj@FreeBSD.org)
Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org
 [IPv6:2610:1c1:1:606c::19:3])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 server-signature RSA-PSS (4096 bits)
 client-signature RSA-PSS (4096 bits) client-digest SHA256)
 (Client CN "mxrelay.nyi.freebsd.org",
 Issuer "Let's Encrypt Authority X3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 46DC7x5J93z477j;
 Wed, 21 Aug 2019 16:01:17 +0000 (UTC)
 (envelope-from markj@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 936911E067;
 Wed, 21 Aug 2019 16:01:17 +0000 (UTC)
 (envelope-from markj@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x7LG1Hs4076084;
 Wed, 21 Aug 2019 16:01:17 GMT (envelope-from markj@FreeBSD.org)
Received: (from markj@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id x7LG1HLd076083;
 Wed, 21 Aug 2019 16:01:17 GMT (envelope-from markj@FreeBSD.org)
Message-Id: <201908211601.x7LG1HLd076083@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: markj set sender to
 markj@FreeBSD.org using -f
From: Mark Johnston <markj@FreeBSD.org>
Date: Wed, 21 Aug 2019 16:01:17 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r351332 - head/sys/vm
X-SVN-Group: head
X-SVN-Commit-Author: markj
X-SVN-Commit-Paths: head/sys/vm
X-SVN-Commit-Revision: 351332
X-SVN-Commit-Repository: base
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 21 Aug 2019 16:01:18 -0000

Author: markj
Date: Wed Aug 21 16:01:17 2019
New Revision: 351332
URL: https://svnweb.freebsd.org/changeset/base/351332

Log:
  Unconditionally enable debug.vm_lowmem.
  
  It is useful for testing purposes to be able to drain UMA caches, so
  do not limit the sysctl to DIAGNOSTIC kernels.
  
  MFC after:	1 week
  Sponsored by:	Netflix

Modified:
  head/sys/vm/vm_kern.c

Modified: head/sys/vm/vm_kern.c
==============================================================================
--- head/sys/vm/vm_kern.c	Wed Aug 21 15:52:10 2019	(r351331)
+++ head/sys/vm/vm_kern.c	Wed Aug 21 16:01:17 2019	(r351332)
@@ -839,7 +839,6 @@ kmem_bootstrap_free(vm_offset_t start, vm_size_t size)
 #endif
 }
 
-#ifdef DIAGNOSTIC
 /*
  * Allow userspace to directly trigger the VM drain routine for testing
  * purposes.
@@ -862,4 +861,3 @@ debug_vm_lowmem(SYSCTL_HANDLER_ARGS)
 
 SYSCTL_PROC(_debug, OID_AUTO, vm_lowmem, CTLTYPE_INT | CTLFLAG_RW, 0, 0,
     debug_vm_lowmem, "I", "set to trigger vm_lowmem event with given flags");
-#endif