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To: Zi Yan , , Matthew Wilcox CC: "Kirill A . Shutemov" , Roman Gushchin , Andrew Morton , , , Yang Shi , Michal Hocko , John Hubbard , David Nellans References: <20201111204008.21332-1-zi.yan@sent.com> <20201111204008.21332-2-zi.yan@sent.com> X-Nvconfidentiality: public From: Ralph Campbell Message-ID: <69294b6a-ecfb-fac0-2725-9ac0b73f43aa@nvidia.com> Date: Thu, 12 Nov 2020 14:22:00 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20201111204008.21332-2-zi.yan@sent.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [172.20.13.39] X-ClientProxiedBy: HQMAIL107.nvidia.com (172.20.187.13) To HQMAIL107.nvidia.com (172.20.187.13) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1605219726; bh=MRJlV+jO9gQUfjeyUA6U+V092g79T0PX8NmUSZOQA4M=; h=Subject:To:CC:References:X-Nvconfidentiality:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:Content-Type:Content-Language: Content-Transfer-Encoding:X-Originating-IP:X-ClientProxiedBy; b=DRu2kukRl/lA6HAt0sSPrNuNAeeDllmZ4MCT2N15qwy9uWDjHXylosjnqdoSkFug/ aSbUzZ4dX2j1XwcgdOsZVrvjZmNYZ9qVl2BHD3UwI7JZ2HftIeSVsyMz7FGcEV913/ 5wpp2eviTofUCf6m1/qBBycpd2xiNJV+9ZIovokIc6wAYmb2dE+1+UV8iPiUCq8+qO hOqJWDkmO+1G2Z8ijgPI5iuxb3c6Qdw7TFihOLonojO3fPjEng/E+uk7gY+QVgqfh3 Z/PjgFEUU9+f0FGmFYaBXMoa2zwvXPhNq9btwYKcrws+iLOQ/MeZJQUoAumLle/A9W BetRm4hX3RY+w== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 11/11/20 12:40 PM, Zi Yan wrote: > From: Zi Yan > > Huge pages in the process with the given pid and virtual address range > are split. It is used to test split huge page function. In addition, > a testing program is added to tools/testing/selftests/vm to utilize the > interface by splitting PMD THPs. > > Signed-off-by: Zi Yan > --- > mm/huge_memory.c | 98 +++++++++++ > mm/internal.h | 1 + > mm/migrate.c | 2 +- > tools/testing/selftests/vm/Makefile | 1 + > .../selftests/vm/split_huge_page_test.c | 161 ++++++++++++++++++ > 5 files changed, 262 insertions(+), 1 deletion(-) > create mode 100644 tools/testing/selftests/vm/split_huge_page_test.c Don't forget to update ".gitignore" to include "split_huge_page_test".