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b=djg6eWwFC+6+N4DPJiLg8s9Is4gODHSnj3M5xQ1v0i1w+hmeZNK7PwkhWrhIjWf2/ CH0pQWNcuemtfyMtkDGcXlblhUbv+mjc67+sAI2oYAXbGbneZb98akSoZWp4z7MbAA MYCJParZCDiX5lgd1V2qmQibMC1LM3lVUBOl2pq+NKbT1WI11q/Zi4JkVaBsLLiBHz p6OdgEEPn/Pwqs7Kqos0FerkgrbibOSK7z0fC+xurQI2IZJZV4ECmDO+tiK3gFMCeg 5YslZiOiXJxROUWILWcI/6ykfLhwIb7A7zzUuDHWxVPRT4iC9mwmMlK1cQY+TJN9jD VpGM7SKbTbfyg== Date: Thu, 9 Jul 2026 13:54:35 +0300 From: Mike Rapoport To: Muchun Song Cc: Andrew Morton , Oscar Salvador , David Hildenbrand , linux-mm@kvack.org, Vlastimil Babka , Lorenzo Stoakes , Michal Hocko , linux-kernel@vger.kernel.org, muchun.song@linux.dev Subject: Re: [PATCH 08/17] mm/sparse: mark memory sections present earlier Message-ID: References: <20260702093821.2740183-1-songmuchun@bytedance.com> <20260702093821.2740183-9-songmuchun@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260702093821.2740183-9-songmuchun@bytedance.com> X-Rspamd-Queue-Id: CB52D80009 X-Stat-Signature: 9zkqkzkz8tyc6yh9ag1sgbfpna36qbi7 X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1783594482-24797 X-HE-Meta: U2FsdGVkX1/3XiNo6Wkr1mIXjFF2Zj9uFxruP7pUZSFUFqrd9ok5tv7Z3wYluxSiPIhKhNSFNEZWLA/+B4qzqMCUxcE7FSjLnhAQu/g0vghq0Yhwlfmz9FtjOZu43mBDH7O0HVLeqRfSrOtdXfvN5mBtC+z46Vu/6BnEfSsyOUTOsFWEreBuDV8vz7iRFuZ8WMsG6c3e/+BR/N0yUKWuqf8VrZY5CANVZlW2R5VXnKJem+JlLq7FUrILjuV4A47rnVhlVBW9uGq+BtHWCAn8E5nhlaGNCfDx8nB93mzQ5yWyJ3yuBncUhqe0LQTFY4EGAZ0vmk/YIfpm808YRvCNl1kEHWkgtqicY5SC6E11Ne+g3qjhW/AaYDWXAA5xuZgQ8jpiG3JzhS1HTSmbLo4WnCk7wIAVBgiYLwy94G3X/9EH/MN/0x0k+MrJurJ94ZjzhDQV49Qf7LBIy8ru1F58i86OceoGNliTIPpWeQnUzB+thJk4YtIyFTGH6BWriH59Psfe38vzUr0uavWLrxGv+TO72eCIUqFhd9NYo0OOfAi1VuLoblnNKCgLrxmUBq9TyC+mJtKt11kley6Shm4nX5W9+eLEyDbPFQ9q6DGYPJsdECUAP8igClCUHsPbDv/tCbvvd0oKlNl8Yqpqh81el14dGBaXioi02ylQDFto1PGn6JfUvdzG+k9eMJt2H9hRgZjcvUvcRCo8e5VYyzzuaERCcG7fqu3T+r/vzANT1SDq8NJf8fA4jbg8k+7AbL2O83FQ9DQlnDPQr2qGcTfWBa7DBfp0nTX6Erpw8A7yO0o8RUtVe6N4yCv2PocjZsDDTirDY31qQbDilHevjc4lTM8XusBFu4U+FDrVgYlq4fzIGYigfc7AFimnt8u9AGmX7wD1oceS5+ihbkKWdZqB1BLLYCSCDJlCYRJL1lBy3rOWxHLxDP2pnCx8/FF2BsnMftnwG8l7AXrdiZz8K8+ fd+SvlnJ 3KR9xkBaeUVU4jQmePe3396DEG+P/wgvffHralx2G84OZM3MfmcMy5rmjWiv60lvkb1C54pCj24d79lnfcY+t8ftuGWP2UQhxK4EsYR8Kkvd17IYKu9dWCYD8vXDSXyJPsn1YMrwCoOrEBjtlugosV4bP/X1IJqgftfGthiSI5cgUEKplgEzNWXXOtqMF+lSbX2WqcU9qGEd3oYkVSld7iAAih2KmsY6K/NGs1HLKh4f//YPWFJdH/S+sRTRIH3zOVb0qy+jqD7B2DLC9nNc07SubQQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Jul 02, 2026 at 05:38:12PM +0800, Muchun Song wrote: > Upcoming HugeTLB bootmem changes need sparsemem section metadata before > the HugeTLB bootmem allocation path runs. The memblock ranges are marked > present from sparse_init(), which is called too late for that setup. It's not only that memblock regions are marked present, but it actually initializes mem_section's for the present memory ... > Move the code that marks memblock ranges present into > mm_core_init_early(), before free_area_init() and the HugeTLB bootmem > setup. Rename the helper to sparse_memblock_present() to make the new ... so let's name this function to reflect that. How about sparse_sections_init()? > caller describe the sparsemem-specific initialization step. > > This is a preparatory change. > > Signed-off-by: Muchun Song > --- > mm/internal.h | 2 ++ > mm/mm_init.c | 1 + > mm/sparse.c | 4 +--- > 3 files changed, 4 insertions(+), 3 deletions(-) -- Sincerely yours, Mike.