Naoya noticed that I wrongly duplicate rmap reference for hugetlb pages in remove_migration_pte() as non-compound. Let's fix this. The patch can be folded into "mm: rework mapcount accounting to enable 4k mapping of THPs" Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Reported-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> --- mm/migrate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index 1ae0113559c9..b1034f9c77e7 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -165,7 +165,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma, if (PageAnon(new)) hugepage_add_anon_rmap(new, vma, addr); else - page_dup_rmap(new, false); + page_dup_rmap(new, true); } else if (PageAnon(new)) page_add_anon_rmap(new, vma, addr, false); else -- 2.6.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>