spin_unlock(&src->page_table_lock);
spin_unlock(&dst->page_table_lock);
}
- return 0;
-nomem:
- return -ENOMEM;
+ if (cow)
+ mmu_notifier_invalidate_range_end(src, mmun_start, mmun_end);
+
+ return ret;
}
- static int is_hugetlb_entry_migration(pte_t pte)
- {
- swp_entry_t swp;
-
- if (huge_pte_none(pte) || pte_present(pte))
- return 0;
- swp = pte_to_swp_entry(pte);
- if (non_swap_entry(swp) && is_migration_entry(swp))
- return 1;
- else
- return 0;
- }
-
- static int is_hugetlb_entry_hwpoisoned(pte_t pte)
- {
- swp_entry_t swp;
-
- if (huge_pte_none(pte) || pte_present(pte))
- return 0;
- swp = pte_to_swp_entry(pte);
- if (non_swap_entry(swp) && is_hwpoison_entry(swp))
- return 1;
- else
- return 0;
- }
-
void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
unsigned long start, unsigned long end,
struct page *ref_page)