Lets make sure we don't use pud hugepage helpers on architectures which do not support it. This fixes the code on arm64. Signed-off-by: Zack Rusin <zackr@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Thomas Hellström (Intel) <thomas_os@xxxxxxxxxxxx> Cc: linux-mm@xxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx --- mm/mapping_dirty_helpers.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/mapping_dirty_helpers.c b/mm/mapping_dirty_helpers.c index b59054ef2e10..b890854ec761 100644 --- a/mm/mapping_dirty_helpers.c +++ b/mm/mapping_dirty_helpers.c @@ -165,10 +165,12 @@ static int wp_clean_pud_entry(pud_t *pud, unsigned long addr, unsigned long end, return 0; } +#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD /* Huge pud */ walk->action = ACTION_CONTINUE; if (pud_trans_huge(pudval) || pud_devmap(pudval)) WARN_ON(pud_write(pudval) || pud_dirty(pudval)); +#endif return 0; } -- 2.27.0
