Fix compile error when COMPACTION_HPAGE_ORDER is assigned to HUGETLB_PAGE_ORDER. The correct way to check if this constant is defined is to check for CONFIG_HUGETLBFS. Signed-off-by: Nitin Gupta <nigupta@xxxxxxxxxx> To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Reported-by: Nathan Chancellor <natechancellor@xxxxxxxxx> Tested-by: Nathan Chancellor <natechancellor@xxxxxxxxx> --- mm/compaction.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/compaction.c b/mm/compaction.c index 45fd24a0ea0b..02963ffb9e70 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -62,7 +62,7 @@ static const unsigned int HPAGE_FRAG_CHECK_INTERVAL_MSEC = 500; */ #if defined CONFIG_TRANSPARENT_HUGEPAGE #define COMPACTION_HPAGE_ORDER HPAGE_PMD_ORDER -#elif defined HUGETLB_PAGE_ORDER +#elif defined CONFIG_HUGETLBFS #define COMPACTION_HPAGE_ORDER HUGETLB_PAGE_ORDER #else #define COMPACTION_HPAGE_ORDER (PMD_SHIFT - PAGE_SHIFT) -- 2.27.0
