Hi, This patchset addresses some issues on the workload related to hwpoison, hugetlb, and memory_hotplug. The problem in memory hotremove reported by Miaohe Lin [1] is mentioned in 2/4. This patch depends on "storing raw error info" functionality provided by 1/4. This patch also provide delayed dissolve function too. Patch 3/4 is to adjust unpoison to new semantics of HPageMigratable for hwpoisoned hugepage. And 4/4 is the fix for the inconsistent counter issue. [1] https://lore.kernel.org/linux-mm/20220421135129.19767-1-linmiaohe@xxxxxxxxxx/ Please let me know if you have any suggestions and comments. Thanks, Naoya Horiguchi --- Summary: Naoya Horiguchi (4): mm, hwpoison, hugetlb: introduce SUBPAGE_INDEX_HWPOISON to save raw error page mm,hwpoison,hugetlb,memory_hotplug: hotremove memory section with hwpoisoned hugepage mm, hwpoison: add parameter unpoison to get_hwpoison_huge_page() mm, memory_hotplug: fix inconsistent num_poisoned_pages on memory hotremove include/linux/hugetlb.h | 29 +++++++++++++++++++++++++++-- mm/hugetlb.c | 24 ++++++++++++++++++++++-- mm/memory-failure.c | 8 ++++++-- mm/memory_hotplug.c | 23 +++++++++++------------ mm/page_alloc.c | 6 ++++++ 5 files changed, 72 insertions(+), 18 deletions(-)
