mm/migrate: make migrate_misplaced_folio() return 0 on success

Patch series "mm/migrate: move NUMA hinting fault folio isolation + checks
under PTL".


Let's just return 0 on success, which is less confusing.

...  especially because we got it wrong in the migrate.h stub where we
have "return -EAGAIN; /* can't migrate now */" instead of "return 0;". 
Likely this wrong return value doesn't currently matter, but it certainly
adds confusion.

We'll add migrate_misplaced_folio_prepare() next, where we want to use the
same "return 0 on success" approach, so let's just clean this up.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: David Hildenbrand <[email protected]>
Reviewed-by: Zi Yan <[email protected]>
Reviewed-by: Baolin Wang <[email protected]>
Cc: Donet Tom <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions