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Mon, 20 Jun 2022 04:07:16 -0700 (PDT) From: Muchun Song To: akpm@linux-foundation.org, corbet@lwn.net, david@redhat.com, mike.kravetz@oracle.com, osalvador@suse.de, paulmck@kernel.org Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, duanxiongchun@bytedance.com, smuchun@gmail.com, Muchun Song Subject: [PATCH v5 0/2] make hugetlb_optimize_vmemmap compatible with memmap_on_memory Date: Mon, 20 Jun 2022 19:06:14 +0800 Message-Id: <20220620110616.12056-1-songmuchun@bytedance.com> X-Mailer: git-send-email 2.32.1 (Apple Git-133) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1655723238; a=rsa-sha256; cv=none; b=PDYYhrasExaOYOgSOw3OEUT2KeqsRp9DOvscTKHQQFmoub0AuQ/JcqBCv9dHwEI/HJ9ENZ yhE4uSnVRNGRnGqgeLLgZOz45mhGoPs1P4yqM5btI8NmIbstnDouizcPN2ygmtMCFsE7kD SzSryJ91TSasKszb3fh3n9ldUYpJZK8= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=hoWVGpOD; 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The reason refers to the patch 2's commit log. v5: - Replace enum to defines per David. - Walk vmemmap page tables to avoid false-positive. v4: - Fix compiling error when CONFIG_MEMORY_HOTPLUG is disabled reported by kernel test robot. - Fix a bug when memory_block_size_bytes() is not equal to section size. v3: - Switch complicated enumeration magic (David). - Introduce PageVmemmapSelfHosted to make both parameters compatible (David and Oscar). v2: - Fix compile error when !CONFIG_ZONE_DEVICE reported by kernel test robot. Muchun Song (2): mm: memory_hotplug: enumerate all supported section flags mm: memory_hotplug: make hugetlb_optimize_vmemmap compatible with memmap_on_memory Documentation/admin-guide/kernel-parameters.txt | 22 ++++----- Documentation/admin-guide/sysctl/vm.rst | 5 +- include/linux/memory_hotplug.h | 9 ---- include/linux/mmzone.h | 41 +++++++++++---- include/linux/page-flags.h | 11 +++++ mm/hugetlb_vmemmap.c | 66 ++++++++++++++++++++++--- mm/memory_hotplug.c | 33 +++++++------ mm/sparse.c | 2 +- 8 files changed, 132 insertions(+), 57 deletions(-) -- 2.11.0