diff options
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/vaddr.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 37994fb6120c..e814f66dfc2e 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -318,9 +318,11 @@ static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr, spin_unlock(ptl); } - if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) - return 0; pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); + if (!pte) { + walk->action = ACTION_AGAIN; + return 0; + } if (!pte_present(*pte)) goto out; damon_ptep_mkold(pte, walk->vma, addr); @@ -464,9 +466,11 @@ huge_out: regular_page: #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ - if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) - return -EINVAL; pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); + if (!pte) { + walk->action = ACTION_AGAIN; + return 0; + } if (!pte_present(*pte)) goto out; folio = damon_get_folio(pte_pfn(*pte)); |