[v3,0/3] A few fixup patches for mm

Message

Miaohe Lin April 24, 2022, 9:11 a.m. UTC

Hi everyone,
This series contains a few patches to avoid mapping random data if swap
read fails and fix lost swap bits in unuse_pte. Also we free hwpoison and
swapin error entry in madvise_free_pte_range. More details can be found
in the respective changelogs. Thanks!

---
v3:
  collect Acked-by tag per David
  remove unneeded pte wrprotect per David
v2:
  make the terminology consistent and collect Acked-by tag per David
  fix lost swap bits in unuse_pte per Peter
  free hwpoison and swapin error entry per Alistair
  Many thanks Alistair, David and Peter for review!
---
Miaohe Lin (3):
  mm/swapfile: unuse_pte can map random data if swap read fails
  mm/swapfile: Fix lost swap bits in unuse_pte()
  mm/madvise: free hwpoison and swapin error entry in
    madvise_free_pte_range

 include/linux/swap.h    |  7 ++++++-
 include/linux/swapops.h | 10 ++++++++++
 mm/madvise.c            | 13 ++++++++-----
 mm/memory.c             |  5 ++++-
 mm/swapfile.c           | 21 ++++++++++++++++++---
 5 files changed, 46 insertions(+), 10 deletions(-)