Unify hwpoisoned page handling and isolation of HugeTLB/LRU/non-LRU
movable page, also convert to use folios in do_migrate_range().
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Hi Andrew, since David and Miaohe give some more comments, no big
changes, but need to update, so I revert v2+fix on and rebased on
next-20240826 and resend, hope this is final version, please use
this v3 if no more comments, thanks.
v3:
- update comment/typo in patch1, Per Jonathan/Miaohe
- remove return value of unmap_posioned_folio() and print inside when
could not lock mapping for mapped huge page, per Miaohe
- drop incorrect KSM comments in do_migrate_range()
- refactor isolate_folio_to_list(), per David
- fix folio_put() in soft_offline_in_use_page(), per Miaohe
- use hugetlb instead of huge in patch5, per David
- collect ACK/RB
v2-resend:
- fix isolate_hugetlb() build error in patch1
v2:
- address comments from David(eg, fix HWPoison check/use a folio
for pfn calculation firstly)
- fix lkp build errors for isolate_folio_to_list()
- drop unnecessary comments and don't grab one more ref for hugetlb
Kefeng Wang (5):
mm: memory_hotplug: remove head variable in do_migrate_range()
mm: memory-failure: add unmap_poisoned_folio()
mm: memory_hotplug: check hwpoisoned page firstly in
do_migrate_range()
mm: migrate: add isolate_folio_to_list()
mm: memory_hotplug: unify Huge/LRU/non-LRU movable folio isolation
include/linux/migrate.h | 3 ++
mm/internal.h | 8 ++++
mm/memory-failure.c | 91 ++++++++++++++++++-----------------------
mm/memory_hotplug.c | 65 ++++++++++++++---------------
mm/migrate.c | 26 ++++++++++++
5 files changed, 106 insertions(+), 87 deletions(-)
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2.27.0
