[PATCH] mm: Mark create_huge_pmd() inline to prevent build failure

From: Geert Uytterhoeven
Date: Wed Jul 12 2017 - 02:58:01 EST

With gcc 4.1.2:

mm/memory.o: In function `create_huge_pmd':
memory.c:(.text+0x93e): undefined reference to `do_huge_pmd_anonymous_page'

Converting transparent_hugepage_enabled() from a macro to a static
inline function reduced the ability of the compiler to remove unused

Fix this by marking create_huge_pmd() inline.

Fixes: 16981d763501c0e0 ("mm: improve readability of transparent_hugepage_enabled()")
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Interestingly, create_huge_pmd() is emitted in the assembler output, but
never called.
mm/memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index cbb57194687e393a..0e517be91a89e162 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3591,7 +3591,7 @@ static int do_numa_page(struct vm_fault *vmf)
return 0;

-static int create_huge_pmd(struct vm_fault *vmf)
+static inline int create_huge_pmd(struct vm_fault *vmf)
if (vma_is_anonymous(vmf->vma))
return do_huge_pmd_anonymous_page(vmf);