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Shutemov" X-Google-Original-From: "Kirill A. Shutemov" Received: by box.localdomain (Postfix, from userid 1000) id 5679F100D24; Fri, 27 Mar 2020 20:06:07 +0300 (+03) To: akpm@linux-foundation.org, Andrea Arcangeli Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCH 0/7] thp/khugepaged improvements and CoW semantics Date: Fri, 27 Mar 2020 20:05:54 +0300 Message-Id: <20200327170601.18563-1-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.26.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: The patchset adds khugepaged selftest (anon-THP only for now), expands cases khugepaged can handle and switches anon-THP copy-on-write handling to 4k. Please review and consider applying. Kirill A. Shutemov (7): khugepaged: Add self test khugepaged: Do not stop collapse if less than half PTEs are referenced khugepaged: Drain LRU add pagevec to get rid of extra pins khugepaged: Allow to callapse a page shared across fork khugepaged: Allow to collapse PTE-mapped compound pages thp: Change CoW semantics for anon-THP khugepaged: Introduce 'max_ptes_shared' tunable Documentation/admin-guide/mm/transhuge.rst | 7 + mm/huge_memory.c | 247 +----- mm/khugepaged.c | 124 ++- tools/testing/selftests/vm/Makefile | 1 + tools/testing/selftests/vm/khugepaged.c | 924 +++++++++++++++++++++ 5 files changed, 1057 insertions(+), 246 deletions(-) create mode 100644 tools/testing/selftests/vm/khugepaged.c --=20 2.26.0