Hi, This patchset enables memory error handling on 1GB hugepage. "Save raw error page" patch (1/4 of patchset [1]) is necessary, so it's included in this series (the remaining part of hotplug related things are still in progress). Patch 2/5 solves issues in a corner case of hugepage handling, which might not be the main target of this patchset, but slightly related. It was posted separately [2] but depends on 1/5, so I group them together. Patch 3/5 to 5/5 are main part of this series and fix a small issue about handling 1GB hugepage, which I hope will be workable. [1]: https://lore.kernel.org/linux-mm/20220427042841.678351-1-naoya.horiguchi@xxxxxxxxx/T/#u [2]: https://lore.kernel.org/linux-mm/20220511151955.3951352-1-naoya.horiguchi@xxxxxxxxx/T/ Please let me know if you have any suggestions and comments. Thanks, Naoya Horiguchi --- Summary: Naoya Horiguchi (5): mm, hwpoison, hugetlb: introduce SUBPAGE_INDEX_HWPOISON to save raw error page mm,hwpoison: set PG_hwpoison for busy hugetlb pages mm, hwpoison: make __page_handle_poison returns int mm, hwpoison: skip raw hwpoison page in freeing 1GB hugepage mm, hwpoison: enable memory error handling on 1GB hugepage include/linux/hugetlb.h | 24 ++++++++++++++++++++++++ include/linux/mm.h | 2 +- include/ras/ras_event.h | 1 - mm/hugetlb.c | 9 +++++++++ mm/memory-failure.c | 48 +++++++++++++++++++++--------------------------- 5 files changed, 55 insertions(+), 29 deletions(-)
