From owner-svn-src-all@freebsd.org Sun Mar 20 19:07:13 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 76C89AD7A27; Sun, 20 Mar 2016 19:07:13 +0000 (UTC) (envelope-from mav@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 468E7BE4; Sun, 20 Mar 2016 19:07:13 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u2KJ7Cne036706; Sun, 20 Mar 2016 19:07:12 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u2KJ7CM1036705; Sun, 20 Mar 2016 19:07:12 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201603201907.u2KJ7CM1036705@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Sun, 20 Mar 2016 19:07:12 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r297073 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-SVN-Group: stable-10 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: 2.1.21 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: Sun, 20 Mar 2016 19:07:13 -0000 Author: mav Date: Sun Mar 20 19:07:12 2016 New Revision: 297073 URL: https://svnweb.freebsd.org/changeset/base/297073 Log: MFC r277492 (by will): Add vfs.zfs.reference_tracking_enable sysctl/tunable. This is primarily for developer/debugging use; it enables built-in tagged tracking of refcounts inside ZFS. It can only be enabled from the loader, since it modifies how in-core state is managed. Default remains disabled. Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/refcount.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/refcount.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/refcount.c Sun Mar 20 19:06:21 2016 (r297072) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/refcount.c Sun Mar 20 19:07:12 2016 (r297073) @@ -30,6 +30,11 @@ #ifdef _KERNEL int reference_tracking_enable = FALSE; /* runs out of memory too easily */ +SYSCTL_DECL(_vfs_zfs); +TUNABLE_INT("vfs.zfs.reference_tracking_enable", &reference_tracking_enable); +SYSCTL_INT(_vfs_zfs, OID_AUTO, reference_tracking_enable, CTLFLAG_RDTUN, + &reference_tracking_enable, 0, + "Track reference holders to refcount_t objects, used mostly by ZFS"); #else int reference_tracking_enable = TRUE; #endif