If the PTE page table lock is acquired by pte_offset_map_lock(), the lock must be released via pte_unmap_unlock(). However, in damos_va_migrate_pmd_entry(), if damos_va_filter_out() returns true, it immediately returns without releasing the lock. This fixes the issue by not stopping page table traversal when damos_va_filter_out() returns true and ensuring that the lock is released. Fixes: 09efc56a3b1c ("mm/damon/vaddr: consistently use only pmd_entry for damos_migrate") Signed-off-by: Akinobu Mita --- mm/damon/vaddr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 2750c88e7225..23ed738a0bd6 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -743,7 +743,7 @@ static int damos_va_migrate_pmd_entry(pmd_t *pmd, unsigned long addr, if (!folio) continue; if (damos_va_filter_out(s, folio, walk->vma, addr, pte, NULL)) - return 0; + continue; damos_va_migrate_dests_add(folio, walk->vma, addr, dests, migration_lists); nr = folio_nr_pages(folio); -- 2.43.0