Messages in this thread | | | From | Wei Yang <> | Subject | [PATCH 0/3] Fixes "mm/sparsemem: support sub-section hotplug" | Date | Fri, 7 Feb 2020 07:16:26 +0800 |
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During reviewing David's code, I found current sub-section hotplug is broken in several places.
The following link fix one potential issue, while David and I still spot some suspicious points.
https://lkml.org/lkml/2020/2/6/334
The problem here is mainly about the memmap manipulation:
* memmap would be overwrite if not use SPARSEMEM_VMEMMAP * only need to adjust memmap for SPARSEMEM_VMEMMAP
Wei Yang (3): mm/sparsemem: adjust memmap only for SPARSEMEM_VMEMMAP mm/sparsemem: get physical address to page struct instead of virtual address to pfn mm/sparsemem: avoid memmap overwrite for non-SPARSEMEM_VMEMMAP
mm/sparse.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
-- 2.17.1
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