From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752387AbdCIHWp (ORCPT ); Thu, 9 Mar 2017 02:22:45 -0500 Received: from mga06.intel.com ([134.134.136.31]:37328 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750793AbdCIHWm (ORCPT ); Thu, 9 Mar 2017 02:22:42 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.36,267,1486454400"; d="scan'208";a="74026085" From: "Reshetova, Elena" To: Boris Ostrovsky , "gregkh@linuxfoundation.org" CC: "peterz@infradead.org" , "linux-pci@vger.kernel.org" , "target-devel@vger.kernel.org" , "linux1394-devel@lists.sourceforge.net" , "devel@driverdev.osuosl.org" , "linux-s390@vger.kernel.org" , "linux-scsi@vger.kernel.org" , "linux-serial@vger.kernel.org" , "fcoe-devel@open-fcoe.org" , "xen-devel@lists.xenproject.org" , "open-iscsi@googlegroups.com" , "linux-media@vger.kernel.org" , Kees Cook , "linux-raid@vger.kernel.org" , "linux-bcache@vger.kernel.org" , "Hans Liljestrand" , David Windsor , "netdev@vger.kernel.org" , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "devel@linuxdriverproject.org" , Juergen Gross Subject: RE: [Xen-devel] [PATCH 29/29] drivers, xen: convert grant_map.users from atomic_t to refcount_t Thread-Topic: [Xen-devel] [PATCH 29/29] drivers, xen: convert grant_map.users from atomic_t to refcount_t Thread-Index: AQHSloVhODBBunqXs0u4piYYOzHdaKGICNqAgALvVoCAAEJLgIAA40eA Date: Thu, 9 Mar 2017 07:19:12 +0000 Message-ID: <2236FBA76BA1254E88B949DDB74E612B41C569F1@IRSMSX102.ger.corp.intel.com> References: <1488810076-3754-1-git-send-email-elena.reshetova@intel.com> <1488810076-3754-30-git-send-email-elena.reshetova@intel.com> <99270126-7751-eed0-5efa-fc695ff3be25@oracle.com> <2236FBA76BA1254E88B949DDB74E612B41C56177@IRSMSX102.ger.corp.intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [163.33.239.182] Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id v297NmI8002338 > On 03/08/2017 08:49 AM, Reshetova, Elena wrote: > >> On 03/06/2017 09:21 AM, Elena Reshetova wrote: > >>> refcount_t type and corresponding API should be > >>> used instead of atomic_t when the variable is used as > >>> a reference counter. This allows to avoid accidental > >>> refcounter overflows that might lead to use-after-free > >>> situations. > >>> > >>> Signed-off-by: Elena Reshetova > >>> Signed-off-by: Hans Liljestrand > >>> Signed-off-by: Kees Cook > >>> Signed-off-by: David Windsor > >>> --- > >>> drivers/xen/gntdev.c | 11 ++++++----- > >>> 1 file changed, 6 insertions(+), 5 deletions(-) > >> Reviewed-by: Boris Ostrovsky > > Is there a tree that can take this change? Turns out it is better to propagate > changes via separate trees and only leftovers can be taken via Greg's tree. > > > > Sure, we can take it via Xen tree for rc3. Thank you very much! Best Regards, Elena. > > -boris