[v2,0/3] HWPoison: Refactor get page interface

Message

Oscar Salvador Dec. 4, 2020, 10:25 a.m. UTC

Ok, this is v2.
I left out the MF_COUNT_INCREASED changes as we need to have the
pages pinned when coming from madvise, otherwise we might be messing
with a page which belongs to someone else.

I ran several tests [1] [2] to make sure nothing is broken.

 @Andrew: Please, remove [3] from mmotm and linux-next and replace it
          with this one.

Thanks

[1] https://github.com/Naoya-Horiguchi/mm_regression
[2] https://e.coding.net/cailca/linux/mm
[3] https://patchwork.kernel.org/project/linux-mm/cover/[e-mail]/

V1 -> V2:
 - Adressed feedback from Vlastimil
 - Add Acked-by from Vlastimil

Oscar Salvador (3):
  mm,hwpoison: Refactor get_any_page
  mm,hwpoison: Disable pcplists before grabbing a refcount
  mm,hwpoison: Remove drain_all_pages from shake_page

 mm/memory-failure.c | 168 +++++++++++++++++++-------------------------
 1 file changed, 74 insertions(+), 94 deletions(-)