From owner-svn-src-all@freebsd.org Tue Dec 6 22:52:46 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AC92AC69813; Tue, 6 Dec 2016 22:52:46 +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 mx1.freebsd.org (Postfix) with ESMTPS id 7C65920E; Tue, 6 Dec 2016 22:52:46 +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 uB6MqjdX019192; Tue, 6 Dec 2016 22:52:45 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uB6Mqjhr019191; Tue, 6 Dec 2016 22:52:45 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201612062252.uB6Mqjhr019191@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Tue, 6 Dec 2016 22:52:45 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r309658 - head/sys/vm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Dec 2016 22:52:46 -0000 Author: markj Date: Tue Dec 6 22:52:45 2016 New Revision: 309658 URL: https://svnweb.freebsd.org/changeset/base/309658 Log: Provide dummy sysctls for v_cache_count and v_tcached. Some utilities (notably top(1)) exit if any of their input sysctls don't exist, and the removal of the above-mentioned PG_CACHE-related sysctls makes it difficult to run such utilities on different versions of the kernel without recompiling. Requested by: bde Modified: head/sys/vm/vm_meter.c Modified: head/sys/vm/vm_meter.c ============================================================================== --- head/sys/vm/vm_meter.c Tue Dec 6 22:48:28 2016 (r309657) +++ head/sys/vm/vm_meter.c Tue Dec 6 22:52:45 2016 (r309658) @@ -314,3 +314,14 @@ VM_STATS_VM(v_forkpages, "VM pages affec 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