From owner-svn-src-head@FreeBSD.ORG Wed Oct 27 13:33:18 2010 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 647051065672; Wed, 27 Oct 2010 13:33:18 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id ADF048FC0A; Wed, 27 Oct 2010 13:33:17 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id o9RDX9Nj080213 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 27 Oct 2010 16:33:09 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4) with ESMTP id o9RDX9NH054205; Wed, 27 Oct 2010 16:33:09 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4/Submit) id o9RDX7WA054204; Wed, 27 Oct 2010 16:33:07 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Wed, 27 Oct 2010 16:33:07 +0300 From: Kostik Belousov To: David Xu Message-ID: <20101027133307.GQ2392@deviant.kiev.zoral.com.ua> References: <201010270232.o9R2Wsu3084553@svn.freebsd.org> <4CC803A8.3040602@freebsd.org> <20101027082122.GD1848@garage.freebsd.pl> <4CC85552.2020100@freebsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qShzMMhzd2CdnVN0" Content-Disposition: inline In-Reply-To: <4CC85552.2020100@freebsd.org> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-3.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, DNS_FROM_OPENWHOIS autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Pawel Jakub Dawidek , Garrett Cooper Subject: Re: svn commit: r214409 - head/sys/kern 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: Wed, 27 Oct 2010 13:33:18 -0000 --qShzMMhzd2CdnVN0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 27, 2010 at 04:37:38PM +0000, David Xu wrote: > Pawel Jakub Dawidek wrote: > >On Wed, Oct 27, 2010 at 10:49:12AM +0000, David Xu wrote: > >>I really hate to see such a problem that userland can not figure out > >>what kernel is using, I try hardly to guess, but still can not find > >>what it is using. yes, I think the doc may need to be fixed or > >>another syscall is needed. > > > >Maybe you could just add sysctl and eventually put it into sysconf(3)? > > >=20 > I just found a dirty method, use sizeof(long) and kern.smp.maxcpus > 32 to figure out the size the kernel is using, because it is how > cpuset_t is constructed, wish it will never be changed. ;-) >=20 I think that sysctl is the way forward, but you may add non-portable FreeBSD function to get the value, and use an ELF aux vector interface to avoid sysctl most of the time. --qShzMMhzd2CdnVN0 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAkzIKhIACgkQC3+MBN1Mb4g0RACg4rYLGVbX4vXDx5/wOjp30mGc P48AniTB28JicB/3vkEGN6J0nR86AEJn =Wl2c -----END PGP SIGNATURE----- --qShzMMhzd2CdnVN0--