From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Subject: [PATCH 00/21] mm: rework free_area_init*() funcitons Date: Sun, 12 Apr 2020 22:48:38 +0300 Message-ID: <20200412194859.12663-1-rppt@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=r767d/McObOAeCeGmuRc7mft50UcDnxE8kRvY9Wo/xA=; b=RTCyi+rrgP0UtG ce6KsVfeCsGXFkrny09PoHM21Lbl1ARxmPdDZV1ZXJJmwMA10YRCcR1dVWOMs/4qiToQ2uQebFJC7 wIZWzAA6OWkCh3nfetl8D31dFh4Q/Uvnt6ZahcyW2WIMvGbHDMg5LL+T80TbpiL0XJ0Hm2bt7mivG gV2kC/+bntOSrO1YD2kWMDN2ZeafOqE1DvorW1sZwmUS8APpuy0Kfz4Wm0WW44hypGYvysBm91DnP qbkkUNnMMp1g+ByigM3/vscqKtLAw70IVezb3Dloc31QcE0ZNjTvdupZtVDM/bG51u78GaicKe24Q /DeMHg9a/nizeSTsZmZw==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586720963; bh=OSu9vVJom8pttJXFBXq0V1ybKX1HhPDF+fLlz2wy5xI=; h=From:To:Cc:Subject:Date:From; b=pzr405/sWsHeV+I0WSYKIfQH3Iki5tkWQ3vSpkcy3jLFmiNnyI/eda0N2NUmgZtnR l3O2adzA1dSQtugzjfjHGGA3GsDeypmHf/4OrsS+cNbGt6rZeLXwX4/3PhxId9WiOU LPuYippu6RejjfEEtGLiXQy4TZZTaIgGGKFg4lLA= List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+glpr-linux-riscv=m.gmane-mx.org@lists.infradead.org Content-Type: text/plain; charset="us-ascii" To: linux-kernel@vger.kernel.org Cc: Rich Felker , linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org, Catalin Marinas , Heiko Carstens , Michal Hocko , "James E.J. Bottomley" , Max Filippov , Guo Ren , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, Mike Rapoport , Greg Ungerer , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Baoquan He , Jonathan Corbet , linux-sh@vger.kernel.org, Michael Ellerman , Helge Deller , x86@kernel.org, Russell King , Ley Foon Tan From: Mike Rapoport Hi, After the discussion [1] about removal of CONFIG_NODES_SPAN_OTHER_NODES and CONFIG_HAVE_MEMBLOCK_NODE_MAP options, I took it a bit further and updated the node/zone initialization. Since all architectures have memblock, it is possible to use only the newer version of free_area_init_node() that calculates the zone and node boundaries based on memblock node mapping and architectural limits on possible zone PFNs. The architectures that still determined zone and hole sizes can be switched to the generic code and the old code that took those zone and hole sizes can be simply removed. And, since it all started from the removal of CONFIG_NODES_SPAN_OTHER_NODES, the memmap_init() is now updated to iterate over memblocks and so it does not need to perform early_pfn_to_nid() query for every PFN. -- Sincerely yours, Mike. [1] https://lore.kernel.org/lkml/1585420282-25630-1-git-send-email-Hoan@os.amperecomputing.com Baoquan He (1): mm: memmap_init: iterate over memblock regions rather that check each PFN Mike Rapoport (20): mm: memblock: replace dereferences of memblock_region.nid with API calls mm: make early_pfn_to_nid() and related defintions close to each other mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option mm: free_area_init: use maximal zone PFNs rather than zone sizes mm: use free_area_init() instead of free_area_init_nodes() alpha: simplify detection of memory zone boundaries arm: simplify detection of memory zone boundaries arm64: simplify detection of memory zone boundaries for UMA configs csky: simplify detection of memory zone boundaries m68k: mm: simplify detection of memory zone boundaries parisc: simplify detection of memory zone boundaries sparc32: simplify detection of memory zone boundaries unicore32: simplify detection of memory zone boundaries xtensa: simplify detection of memory zone boundaries mm: remove early_pfn_in_nid() and CONFIG_NODES_SPAN_OTHER_NODES mm: free_area_init: allow defining max_zone_pfn in descending order mm: rename free_area_init_node() to free_area_init_memoryless_node() mm: clean up free_area_init_node() and its helpers mm: simplify find_min_pfn_with_active_regions() docs/vm: update memory-models documentation .../vm/numa-memblock/arch-support.txt | 34 --- Documentation/vm/memory-model.rst | 9 +- arch/alpha/mm/init.c | 16 +- arch/alpha/mm/numa.c | 22 +- arch/arc/mm/init.c | 36 +-- arch/arm/mm/init.c | 66 +---- arch/arm64/Kconfig | 1 - arch/arm64/mm/init.c | 56 +--- arch/arm64/mm/numa.c | 9 +- arch/c6x/mm/init.c | 8 +- arch/csky/kernel/setup.c | 26 +- arch/h8300/mm/init.c | 6 +- arch/hexagon/mm/init.c | 6 +- arch/ia64/Kconfig | 1 - arch/ia64/mm/contig.c | 2 +- arch/ia64/mm/discontig.c | 2 +- arch/m68k/mm/init.c | 6 +- arch/m68k/mm/mcfmmu.c | 9 +- arch/m68k/mm/motorola.c | 15 +- arch/m68k/mm/sun3mmu.c | 10 +- arch/microblaze/Kconfig | 1 - arch/microblaze/mm/init.c | 2 +- arch/mips/Kconfig | 1 - arch/mips/loongson64/numa.c | 2 +- arch/mips/mm/init.c | 2 +- arch/mips/sgi-ip27/ip27-memory.c | 2 +- arch/nds32/mm/init.c | 11 +- arch/nios2/mm/init.c | 8 +- arch/openrisc/mm/init.c | 9 +- arch/parisc/mm/init.c | 22 +- arch/powerpc/Kconfig | 10 - arch/powerpc/mm/mem.c | 2 +- arch/riscv/Kconfig | 1 - arch/riscv/mm/init.c | 2 +- arch/s390/Kconfig | 1 - arch/s390/mm/init.c | 2 +- arch/sh/Kconfig | 1 - arch/sh/mm/init.c | 2 +- arch/sparc/Kconfig | 10 - arch/sparc/mm/init_64.c | 2 +- arch/sparc/mm/srmmu.c | 21 +- arch/um/kernel/mem.c | 12 +- arch/unicore32/include/asm/memory.h | 2 +- arch/unicore32/include/mach/memory.h | 6 +- arch/unicore32/kernel/pci.c | 14 +- arch/unicore32/mm/init.c | 43 +-- arch/x86/Kconfig | 10 - arch/x86/mm/init.c | 2 +- arch/x86/mm/numa.c | 11 +- arch/xtensa/mm/init.c | 8 +- include/linux/memblock.h | 8 +- include/linux/mm.h | 30 +- include/linux/mmzone.h | 11 +- mm/Kconfig | 3 - mm/memblock.c | 19 +- mm/memory_hotplug.c | 4 - mm/page_alloc.c | 262 +++++++----------- 57 files changed, 249 insertions(+), 650 deletions(-) delete mode 100644 Documentation/features/vm/numa-memblock/arch-support.txt -- 2.25.1