From owner-freebsd-stable@FreeBSD.ORG Thu Oct 9 21:21:20 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A185668E for ; Thu, 9 Oct 2014 21:21:20 +0000 (UTC) Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7EFD5D10 for ; Thu, 9 Oct 2014 21:21:20 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 8C0FEB94C for ; Thu, 9 Oct 2014 17:21:19 -0400 (EDT) To: freebsd-stable@freebsd.org Subject: [PATCH] Lock scd(4): test or the driver will be removed From: John Baldwin Date: Thu, 9 Oct 2014 14:02:53 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201410091402.53853.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Thu, 09 Oct 2014 17:21:19 -0400 (EDT) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Oct 2014 21:21:20 -0000 This patch adds locking to scd(4) and marks it MPSAFE. It also uses bus_*() instead of bus_space_*(). The patch is against HEAD but probably applies to 9 and 10 as well. http://people.freebsd.org/~jhb/patches/scd_locking.patch Note that this driver is using a deprecated API that will be removed in 11. If no one tests updates to this driver then it is not feasible to continue maintaining it in the tree. In that case, it will be removed from HEAD one month from today. -- John Baldwin