diff options
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 9dd5eb846d38..da1e115cc403 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -550,10 +550,16 @@ int migrate_huge_page_move_mapping(struct address_space *mapping, struct folio *dst, struct folio *src) { XA_STATE(xas, &mapping->i_pages, folio_index(src)); - int expected_count; + int rc, expected_count = folio_expected_refs(mapping, src); + + if (folio_ref_count(src) != expected_count) + return -EAGAIN; + + rc = folio_mc_copy(dst, src); + if (unlikely(rc)) + return rc; xas_lock_irq(&xas); - expected_count = folio_expected_refs(mapping, src); if (!folio_ref_freeze(src, expected_count)) { xas_unlock_irq(&xas); return -EAGAIN; |