Merge branch 'dt-bus-name' into for-next

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 5b337cf8fb86..b65166de1d9d 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -412,6 +412,16 @@ static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
         return &mm->page_table_lock;
 }
 
+static inline bool hugepages_supported(void)
+{
+        /*
+         * Some platform decide whether they support huge pages at boot
+         * time. On these, such as powerpc, HPAGE_SHIFT is set to 0 when
+         * there is no such support
+         */
+        return HPAGE_SHIFT != 0;
+}
+
 #else   /* CONFIG_HUGETLB_PAGE */
 struct hstate {};
 #define alloc_huge_page_node(h, nid) NULL