From patchwork Mon Dec 16 19:57:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Campbell X-Patchwork-Id: 11295105 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 58CCA186D for ; Mon, 16 Dec 2019 19:57:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 36AE821835 for ; Mon, 16 Dec 2019 19:57:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="NkfeIT/C" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbfLPT5u (ORCPT ); Mon, 16 Dec 2019 14:57:50 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:2973 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726885AbfLPT5u (ORCPT ); Mon, 16 Dec 2019 14:57:50 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 16 Dec 2019 11:57:22 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 16 Dec 2019 11:57:49 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 16 Dec 2019 11:57:49 -0800 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 16 Dec 2019 19:57:47 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Mon, 16 Dec 2019 19:57:46 +0000 Received: from rcampbell-dev.nvidia.com (Not Verified[10.110.48.66]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Mon, 16 Dec 2019 11:57:46 -0800 From: Ralph Campbell To: , , , CC: Jerome Glisse , John Hubbard , Christoph Hellwig , Jason Gunthorpe , "Andrew Morton" , Shuah Khan , "Ralph Campbell" Subject: [PATCH v5 0/2] mm/hmm/test: add self tests for HMM Date: Mon, 16 Dec 2019 11:57:31 -0800 Message-ID: <20191216195733.28353-1-rcampbell@nvidia.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-NVConfidentiality: public DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1576526242; bh=c+0LXJAAa4iRvvJNP9qW63zka2XWJ3Ad+NBLnq3STuE=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-NVConfidentiality:Content-Type: Content-Transfer-Encoding; b=NkfeIT/CqWvjl9YCstxoAo/Cp2YpQXzJ6AmaYmvVM/lGETvUvAMSy8JPXNMsFbPYv BtUoyxmNG62NEOngT+mnmbWQr7hXpVOE3eC9otPZXDY9UgQm6vhuwNH71XneyqYWwN 3g38pUhvIUCRmKkTDMNxf3EJ1tYmFdSrVQCUripY34UC0ku28MfYOifsmESGXA4vNb lN2q9coCR+Dy9pUdxZqIq8lC5yDRu/fa1ryEBua9HSk5FZ70TrLqAogrCF2DqHKUK/ 4lu5UipdSVUQI7zSclCiO5Svep2aeby/yjwvj6vpReFgocU/+GoBrmIAswdDWU998r P+TWVIoDuosQQ== Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This series adds basic self tests for HMM and mmu interval notifiers so that changes can be validated. It is based on linux-5.5.0-rc1 and is for Jason's rdma/hmm tree since I believe he is planning some interval notifier changes. Patch 2 was last posted as part of [1] but the other patches in that series have been merged and this version of the HMM tests is modified to address Jason's concern over using both process wide MMU notifiers in combination with MMU interval notifiers. Therefore, patch 1 adds some core functionality to allow intervals to be updated from within the invalidation() callback so that MMU_NOTIFY_UNMAP events can update the range being tracked. [1] https://lore.kernel.org/linux-mm/20191104222141.5173-1-rcampbell@nvidia.com Ralph Campbell (2): mm/mmu_notifier: make interval notifier updates safe mm/hmm/test: add self tests for HMM MAINTAINERS | 3 + include/linux/mmu_notifier.h | 15 + lib/Kconfig.debug | 11 + lib/Makefile | 1 + lib/test_hmm.c | 1367 ++++++++++++++++++++++++ mm/mmu_notifier.c | 196 +++- tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 3 + tools/testing/selftests/vm/config | 2 + tools/testing/selftests/vm/hmm-tests.c | 1360 +++++++++++++++++++++++ tools/testing/selftests/vm/run_vmtests | 16 + tools/testing/selftests/vm/test_hmm.sh | 97 ++ 12 files changed, 3047 insertions(+), 25 deletions(-) create mode 100644 lib/test_hmm.c create mode 100644 tools/testing/selftests/vm/hmm-tests.c create mode 100755 tools/testing/selftests/vm/test_hmm.sh