mm: enable thp migration for shmem thp

[linux.git] / mm / huge_memory.c

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 14ed6ee5e02fc8bc6acc767de9e42ed464ce5675..a3a1815f8e11810ec1b94cb25d3c5dd6eb30f556 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2925,7 +2925,10 @@ void remove_migration_pmd(struct page_vma_mapped_walk *pvmw, struct page *new)
                pmde = maybe_pmd_mkwrite(pmde, vma);
 
        flush_cache_range(vma, mmun_start, mmun_start + HPAGE_PMD_SIZE);
-       page_add_anon_rmap(new, vma, mmun_start, true);
+       if (PageAnon(new))
+               page_add_anon_rmap(new, vma, mmun_start, true);
+       else
+               page_add_file_rmap(new, true);
        set_pmd_at(mm, mmun_start, pvmw->pmd, pmde);
        if (vma->vm_flags & VM_LOCKED)
                mlock_vma_page(new);