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[23.128.96.18]) by mx.google.com with ESMTP id v18si3520166edx.378.2020.05.29.13.38.34; Fri, 29 May 2020 13:38:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2020-01-29 header.b=kG3hZ67O; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727964AbgE2Ugr (ORCPT + 99 others); Fri, 29 May 2020 16:36:47 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:38866 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727024AbgE2Ugr (ORCPT ); Fri, 29 May 2020 16:36:47 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04TKLvJt073818; Fri, 29 May 2020 20:36:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2020-01-29; bh=cQWqf751vaM12XLOvQMT0qGfaWHdXNL8jZ6GqIv8JAI=; b=kG3hZ67OYuUdfYaYoSZ4rmbP4c9eJFk4EAmHgt505+H9wNCubbrjD1ZoR3fh2RbvPkKT WIa2GQdTL2fukPQ4Z+dQAT2nEKcpPpDJZ24Y1kZNqHdBBZf0ZPAmVvAcUvh2VqPs7qio aGcJKwINvY0siQVUfNtL8Krb8okIMQVqGbgcXhehNY1zVN7gYQP1J1+3AaORIAuS4QSx L/x4ib5Wh5hGL0J9hwNGW1AKfMYION5Jr06QGNxaAEssG7yKE1SgVr1i1E6NRyeJhBN0 pyVSSYhl7pkaUeu6OeIjczqowpBi9A7sCSvkLtdeIuIJDW3SiTlTp3HR6rG3gQyPAgfD KA== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 316u8rcc7p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 29 May 2020 20:36:25 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04TKHhF1086414; Fri, 29 May 2020 20:36:24 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3020.oracle.com with ESMTP id 317j60cjep-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 29 May 2020 20:36:24 +0000 Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 04TKaMmw007436; Fri, 29 May 2020 20:36:22 GMT Received: from ca-dmjordan1.us.oracle.com (/10.211.9.48) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 29 May 2020 13:36:21 -0700 Date: Fri, 29 May 2020 16:36:46 -0400 From: Daniel Jordan To: Michel Lespinasse Cc: Andrew Morton , linux-mm , LKML , Peter Zijlstra , Laurent Dufour , Vlastimil Babka , Matthew Wilcox , Liam Howlett , Jerome Glisse , Davidlohr Bueso , David Rientjes , Hugh Dickins , Ying Han , Jason Gunthorpe , Daniel Jordan , John Hubbard Subject: Re: [PATCH v6 09/12] mmap locking API: add mmap_assert_locked() and mmap_assert_write_locked() Message-ID: <20200529203646.anfey4maordepkd2@ca-dmjordan1.us.oracle.com> References: <20200520052908.204642-1-walken@google.com> <20200520052908.204642-10-walken@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200520052908.204642-10-walken@google.com> User-Agent: NeoMutt/20180716 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9636 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 suspectscore=0 mlxlogscore=999 mlxscore=0 adultscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005290150 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9636 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 mlxscore=0 priorityscore=1501 spamscore=0 cotscore=-2147483648 suspectscore=0 phishscore=0 clxscore=1015 mlxlogscore=999 bulkscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005290150 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 19, 2020 at 10:29:05PM -0700, Michel Lespinasse wrote: > Add new APIs to assert that mmap_sem is held. > > Using this instead of rwsem_is_locked and lockdep_assert_held[_write] > makes the assertions more tolerant of future changes to the lock type. > > Signed-off-by: Michel Lespinasse Reviewed-by: Daniel Jordan