From owner-svn-src-head@FreeBSD.ORG Sat Jan 28 17:41:42 2012 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 862DC1065670; Sat, 28 Jan 2012 17:41:42 +0000 (UTC) (envelope-from kmacy@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 701388FC08; Sat, 28 Jan 2012 17:41:42 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q0SHfgZA093613; Sat, 28 Jan 2012 17:41:42 GMT (envelope-from kmacy@svn.freebsd.org) Received: (from kmacy@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id q0SHfg9X093611; Sat, 28 Jan 2012 17:41:42 GMT (envelope-from kmacy@svn.freebsd.org) Message-Id: <201201281741.q0SHfg9X093611@svn.freebsd.org> From: Kip Macy Date: Sat, 28 Jan 2012 17:41:42 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r230647 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Jan 2012 17:41:42 -0000 Author: kmacy Date: Sat Jan 28 17:41:42 2012 New Revision: 230647 URL: http://svn.freebsd.org/changeset/base/230647 Log: add tunable for developers working on areas outside of ZFS to further reduce core size by excluding ARC metadata buffers from core dumps Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c Sat Jan 28 17:27:58 2012 (r230646) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c Sat Jan 28 17:41:42 2012 (r230647) @@ -42,6 +42,10 @@ static int zio_use_uma = 0; TUNABLE_INT("vfs.zfs.zio.use_uma", &zio_use_uma); SYSCTL_INT(_vfs_zfs_zio, OID_AUTO, use_uma, CTLFLAG_RDTUN, &zio_use_uma, 0, "Use uma(9) for ZIO allocations"); +static int zio_exclude_metadata = 0; +TUNABLE_INT("vfs.zfs.zio.exclude_metadata", &zio_exclude_metadata); +SYSCTL_INT(_vfs_zfs_zio, OID_AUTO, exclude_metadata, CTLFLAG_RDTUN, &zio_exclude_metadata, 0, + "Exclude metadata buffers from dumps as well"); /* * ========================================================================== @@ -217,13 +221,14 @@ void * zio_buf_alloc(size_t size) { size_t c = (size - 1) >> SPA_MINBLOCKSHIFT; + int flags = zio_exclude_metadata ? KM_NODEBUG : 0; ASSERT(c < SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT); if (zio_use_uma) return (kmem_cache_alloc(zio_buf_cache[c], KM_PUSHPAGE)); else - return (kmem_alloc(size, KM_SLEEP)); + return (kmem_alloc(size, KM_SLEEP|flags)); } /*