Messages in this thread | | | Subject | Re: [Patch v2] mm/sparse: only sub-section aligned range would be populated | From | David Hildenbrand <> | Date | Thu, 6 Aug 2020 09:29:36 +0200 |
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On 05.08.20 23:49, Wei Yang wrote: > On Fri, Jul 03, 2020 at 11:18:28AM +0800, Wei Yang wrote: >> There are two code path which invoke __populate_section_memmap() >> >> * sparse_init_nid() >> * sparse_add_section() >> >> For both case, we are sure the memory range is sub-section aligned. >> >> * we pass PAGES_PER_SECTION to sparse_init_nid() >> * we check range by check_pfn_span() before calling >> sparse_add_section() >> >> Also, the counterpart of __populate_section_memmap(), we don't do such >> calculation and check since the range is checked by check_pfn_span() in >> __remove_pages(). >> >> Clear the calculation and check to keep it simple and comply with its >> counterpart. >> >> Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> >> > > Hi, Andrew, > > Is this one picked up?
I can spot it in -next via the -mm tree:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=68ad9becb23be14622e39ed36e5b0621a90a41d9
-- Thanks,
David / dhildenb
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