[098/114] mm/huge_memory: make is_transparent_hugepage() static

Commit Message

Andrew Morton March 25, 2022, 1:13 a.m. UTC

From: Miaohe Lin <[e-mail]>
Subject: mm/huge_memory: make is_transparent_hugepage() static

It's only used inside the huge_memory.c now. Don't export it and make
it static. We can thus reduce the size of huge_memory.o a bit.

Without this patch:
   text	   data	    bss	    dec	    hex	filename
  32319	   2965	      4	  35288	   89d8	mm/huge_memory.o

With this patch:
   text	   data	    bss	    dec	    hex	filename
  32042	   2957	      4	  35003	   88bb	mm/huge_memory.o

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Miaohe Lin <[e-mail]>
Reviewed-by: Muchun Song <[e-mail]>
Reviewed-by: Yang Shi <[e-mail]>
Cc: Matthew Wilcox <[e-mail]>
Cc: William Kucharski <[e-mail]>
Cc: Hugh Dickins <[e-mail]>
Cc: Peter Xu <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 include/linux/huge_mm.h |    6 ------
 mm/huge_memory.c        |    3 +--
 2 files changed, 1 insertion(+), 8 deletions(-)

Patch

--- a/include/linux/huge_mm.h~mm-huge_memory-make-is_transparent_hugepage-static
+++ a/include/linux/huge_mm.h
@@ -183,7 +183,6 @@  unsigned long thp_get_unmapped_area(stru
 
 void prep_transhuge_page(struct page *page);
 void free_transhuge_page(struct page *page);
-bool is_transparent_hugepage(struct page *page);
 
 bool can_split_folio(struct folio *folio, int *pextra_pins);
 int split_huge_page_to_list(struct page *page, struct list_head *list);
@@ -341,11 +340,6 @@  static inline bool transhuge_vma_enabled
 
 static inline void prep_transhuge_page(struct page *page) {}
 
-static inline bool is_transparent_hugepage(struct page *page)
-{
-	return false;
-}
-
 #define transparent_hugepage_flags 0UL
 
 #define thp_get_unmapped_area	NULL
--- a/mm/huge_memory.c~mm-huge_memory-make-is_transparent_hugepage-static
+++ a/mm/huge_memory.c
@@ -533,7 +533,7 @@  void prep_transhuge_page(struct page *pa
 	set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR);
 }
 
-bool is_transparent_hugepage(struct page *page)
+static inline bool is_transparent_hugepage(struct page *page)
 {
 	if (!PageCompound(page))
 		return false;
@@ -542,7 +542,6 @@  bool is_transparent_hugepage(struct page
 	return is_huge_zero_page(page) ||
 	       page[1].compound_dtor == TRANSHUGE_PAGE_DTOR;
 }
-EXPORT_SYMBOL_GPL(is_transparent_hugepage);
 
 static unsigned long __thp_get_unmapped_area(struct file *filp,
 		unsigned long addr, unsigned long len,