The only users of pmd_devmap were device dax and fs dax. The check for pmd_devmap() in check_pmd_state() is therefore redundant as callers explicitly check for is_zone_device_page(), so this check can be dropped. Signed-off-by: Alistair Popple <apopple@xxxxxxxxxx> --- mm/khugepaged.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 5f0be13..7eeae33 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -958,8 +958,6 @@ static inline int check_pmd_state(pmd_t *pmd) return SCAN_PMD_NULL; if (pmd_trans_huge(pmde)) return SCAN_PMD_MAPPED; - if (pmd_devmap(pmde)) - return SCAN_PMD_NULL; if (pmd_bad(pmde)) return SCAN_PMD_NULL; return SCAN_SUCCEED; -- git-series 0.9.1
