Hi, This patchset tries to solve the issue among memory_hotplug, hugetlb and hwpoison. In this patchset, memory hotplug handles hwpoison pages like below: - hwpoison pages should not prevent memory hotremove, - memory block with hwpoison pages should not be onlined. Changes in this version: - applied comments for previous versions (thank you, reviewers), - fixed a few build errors (sorry for making noises on linux-next), - unpoison_memory() properly cancels per-memblk hwpoison counter, - rebased onto akpm/mm-unstable on Oct 4. Thanks, Naoya Horiguchi v1: https://lore.kernel.org/linux-mm/20220427042841.678351-1-naoya.horiguchi@xxxxxxxxx/T v2: https://lore.kernel.org/linux-mm/20220905062137.1455537-1-naoya.horiguchi@xxxxxxxxx/T v3-5: https://lore.kernel.org/linux-mm/20220921091359.25889-1-naoya.horiguchi@xxxxxxxxx/T --- Summary: Naoya Horiguchi (4): mm,hwpoison,hugetlb,memory_hotplug: hotremove memory section with hwpoisoned hugepage mm/hwpoison: move definitions of num_poisoned_pages_* to memory-failure.c mm/hwpoison: pass pfn to num_poisoned_pages_*() mm/hwpoison: introduce per-memory_block hwpoison counter arch/parisc/kernel/pdt.c | 5 ++-- drivers/base/memory.c | 40 +++++++++++++++++++++++++++ include/linux/hugetlb.h | 10 ++++--- include/linux/memory.h | 3 ++ include/linux/mm.h | 29 ++++++++++++++++++-- include/linux/swapops.h | 24 ++-------------- mm/hugetlb.c | 9 +++--- mm/internal.h | 8 ------ mm/memory-failure.c | 71 +++++++++++++++++++++++++++--------------------- mm/sparse.c | 2 -- 10 files changed, 125 insertions(+), 76 deletions(-)
