[PATCH v2 1/6] mm: hugetlb: rename some allocation functions

After a future patch, the __alloc_buddy_huge_page() will not necessarily
use the buddy allocator.

So this patch removes the "buddy" from these functions:
	__alloc_buddy_huge_page -> __alloc_huge_page
	__alloc_buddy_huge_page_no_mpol -> __alloc_huge_page_no_mpol
	__alloc_buddy_huge_page_with_mpol -> __alloc_huge_page_with_mpol

This patch makes preparation for the later patch.

Signed-off-by: Huang Shijie <redacted>
---
 mm/hugetlb.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3edb759..496b703 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c

@@ -1157,6 +1157,10 @@ static int alloc_fresh_gigantic_page(struct hstate *h,

 static inline bool gigantic_page_supported(void) { return true; }
 #else
+static inline struct page *alloc_gigantic_page(int nid, unsigned int order)
+{
+	return NULL;
+}