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Commit f412c97a authored by David Rientjes's avatar David Rientjes Committed by Linus Torvalds
Browse files

mm, hugetlb: mark some bootstrap functions as __init 



Both prep_compound_huge_page() and prep_compound_gigantic_page() are
only called at bootstrap and can be marked as __init.

The __SetPageTail(page) in prep_compound_gigantic_page() happening
before page->first_page is initialized is not concerning since this is
bootstrap.

Signed-off-by: default avatarDavid Rientjes <rientjes@google.com>
Reviewed-by: default avatarMichal Hocko <mhocko@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: default avatarDavidlohr Bueso <davidlohr@hp.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 449dd698

mm/hugetlb.c

+3 −2
Original line number Diff line number Diff line
@@ -689,7 +689,8 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) 
	put_page(page); /* free it into the hugepage allocator */

}



static void prep_compound_gigantic_page(struct page *page, unsigned long order)

static void __init prep_compound_gigantic_page(struct page *page,

					       unsigned long order)

{

	int i;

	int nr_pages = 1 << order;
@@ -1319,7 +1320,7 @@ int __weak alloc_bootmem_huge_page(struct hstate *h) 
	return 1;

}



static void prep_compound_huge_page(struct page *page, int order)

static void __init prep_compound_huge_page(struct page *page, int order)

{

	if (unlikely(order > (MAX_ORDER - 1)))

		prep_compound_gigantic_page(page, order);