diff options
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 64635f5278ff..d199d2d91946 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1536,16 +1536,23 @@ pmd_t *page_check_address_pmd(struct page *page, enum page_check_address_pmd_flag flag, spinlock_t **ptl) { + pgd_t *pgd; + pud_t *pud; pmd_t *pmd; if (address & ~HPAGE_PMD_MASK) return NULL; - pmd = mm_find_pmd(mm, address); - if (!pmd) + pgd = pgd_offset(mm, address); + if (!pgd_present(*pgd)) return NULL; + pud = pud_offset(pgd, address); + if (!pud_present(*pud)) + return NULL; + pmd = pmd_offset(pud, address); + *ptl = pmd_lock(mm, pmd); - if (pmd_none(*pmd)) + if (!pmd_present(*pmd)) goto unlock; if (pmd_page(*pmd) != page) goto unlock; @@ -2733,7 +2740,7 @@ static int khugepaged(void *none) struct mm_slot *mm_slot; set_freezable(); - set_user_nice(current, 19); + set_user_nice(current, MAX_NICE); while (!kthread_should_stop()) { khugepaged_do_scan(); |
