mm: support multi-size THP numa balancing

[linux-2.6-block.git] / mm / mprotect.c

diff --git a/mm/mprotect.c b/mm/mprotect.c
index f8a4544b4601db4e4ff8e575934ea9502850cd8a..94878c39ee32dd39d0b97729ef0cd15ab6e7ce6c 100644 (file)
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -129,7 +129,8 @@ static long change_pte_range(struct mmu_gather *tlb,
 
                                /* Also skip shared copy-on-write pages */
                                if (is_cow_mapping(vma->vm_flags) &&
-                                   folio_ref_count(folio) != 1)
+                                   (folio_maybe_dma_pinned(folio) ||
+                                    folio_likely_mapped_shared(folio)))
                                        continue;
 
                                /*