From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758163AbcH3LA1 (ORCPT ); Tue, 30 Aug 2016 07:00:27 -0400 Received: from mail-pf0-f195.google.com ([209.85.192.195]:34688 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751629AbcH3LAW (ORCPT ); Tue, 30 Aug 2016 07:00:22 -0400 From: wei.guo.simon@gmail.com To: linux-mm@kvack.org Cc: Alexey Klimov , Andrew Morton , Eric B Munson , Geert Uytterhoeven , "Kirill A. Shutemov" , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Mel Gorman , Michal Hocko , Shuah Khan , Simon Guo , Thierry Reding , Vlastimil Babka Subject: [PATCH 0/4] mm: mlock: fix some locked_vm counting issues Date: Tue, 30 Aug 2016 18:59:37 +0800 Message-Id: <1472554781-9835-1-git-send-email-wei.guo.simon@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Simon Guo This patch set fixes some mlock() misbehavior when mlock()/mlock2() is invoked multiple times on intersect or same address regions. And add selftest for this case. Simon Guo (4): mm: mlock: check against vma for actual mlock() size mm: mlock: avoid increase mm->locked_vm on mlock() when already mlock2(,MLOCK_ONFAULT) selftest: split mlock2_ apis into separate mlock2.h selftests/vm: add test for mlock() when areas are intersected. mm/mlock.c | 53 ++++++++++++++++ tools/testing/selftests/vm/.gitignore | 1 + tools/testing/selftests/vm/Makefile | 4 ++ tools/testing/selftests/vm/mlock-intersect-test.c | 76 +++++++++++++++++++++++ tools/testing/selftests/vm/mlock2-tests.c | 21 +------ tools/testing/selftests/vm/mlock2.h | 21 +++++++ 6 files changed, 156 insertions(+), 20 deletions(-) create mode 100644 tools/testing/selftests/vm/mlock-intersect-test.c create mode 100644 tools/testing/selftests/vm/mlock2.h -- 1.8.3.1