[PATCH 0/3] Some cleanups for page isolation

[Baolin Wang <baolin.wang@linux.alibaba.com>]

Hi,

The page isolation functions did not return a boolean to indicate
success or not, instead it will return a negative error when failed
to isolate a page. So it's better to check the negative error explicitly
for isolation to make the code more clear per Linus's suggestion in [1].

No functional changes intended in this patch series.

[1] https://lore.kernel.org/all/CAHk-=wiBrY+O-4=2mrbVyxR+hOqfdJ=Do6xoucfJ9_5az01L4Q@mail.gmail.com/

Baolin Wang (3):
  mm: check negative error of folio_isolate_lru() when failed to isolate
    a folio
  mm: check negative error of isolate_lru_page() when failed to isolate
    a page
  mm: mempolicy: check negative error of isolate_hugetlb() when failed
    to isolate a hugetlb

 mm/damon/paddr.c    | 2 +-
 mm/gup.c            | 2 +-
 mm/khugepaged.c     | 4 ++--
 mm/memcontrol.c     | 2 +-
 mm/mempolicy.c      | 2 +-
 mm/migrate.c        | 4 ++--
 mm/migrate_device.c | 2 +-
 7 files changed, 9 insertions(+), 9 deletions(-)

-- 
2.27.0