From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-f199.google.com (mail-lj1-f199.google.com [209.85.208.199]) by kanga.kvack.org (Postfix) with ESMTP id 406D48E0002 for ; Thu, 3 Jan 2019 09:22:34 -0500 (EST) Received: by mail-lj1-f199.google.com with SMTP id v74-v6so9549489lje.6 for ; Thu, 03 Jan 2019 06:22:34 -0800 (PST) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id m10-v6sor30747424lje.8.2019.01.03.06.22.31 for (Google Transport Security); Thu, 03 Jan 2019 06:22:32 -0800 (PST) From: "Uladzislau Rezki (Sony)" Subject: [RFC PATCH v4 0/3] test driver to analyse vmalloc allocator Date: Thu, 3 Jan 2019 15:21:05 +0100 Message-Id: <20190103142108.20744-1-urezki@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , Michal Hocko , Kees Cook , Matthew Wilcox , linux-mm@kvack.org, Shuah Khan Cc: LKML , Oleksiy Avramchenko , Thomas Gleixner , "Uladzislau Rezki (Sony)" Hello. This is v4. I think it is ready to go with, unless there are extra requests or comments. Changes in v4: - Since the test can take time, switch to wait_for_completion_timeout() with HZ sleep interval to prevent triggering of the trace about hung task; - Fix clean apply for v4.20 kernel. Changes in v3: - Export __vmalloc_node_range() with _GPL-only prefix; - Add skip cases if the test can not be executed in current environment. That is kselftest framework requirement. Changes in v2: - Code cleanup to make it more simple; - Now __vmalloc_node_range() is exported if CONFIG_TEST_VMALLOC_MODULE=m - Integrate vmalloc test suite into tools/testing/selftests/vm I think it is ready to go with, unless there are more requests or comments. Thank you in advance. Uladzislau Rezki (Sony) (3): vmalloc: export __vmalloc_node_range for CONFIG_TEST_VMALLOC_MODULE vmalloc: add test driver to analyse vmalloc allocator selftests/vm: add script helper for CONFIG_TEST_VMALLOC_MODULE lib/Kconfig.debug | 12 + lib/Makefile | 1 + lib/test_vmalloc.c | 548 +++++++++++++++++++++++++++++ mm/vmalloc.c | 9 + tools/testing/selftests/vm/run_vmtests | 16 + tools/testing/selftests/vm/test_vmalloc.sh | 176 +++++++++ 6 files changed, 762 insertions(+) create mode 100644 lib/test_vmalloc.c create mode 100755 tools/testing/selftests/vm/test_vmalloc.sh -- 2.11.0