mm/gup: move try_grab_page() to mm/internal.h

This is part of the internal function of gup.c and is only non-static so that the parts of gup.c in the huge_memory.c and hugetlb.c can call it. Put it in internal.h beside the similarly purposed try_grab_folio() Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Jason Gunthorpe <[email protected]> Reviewed-by: John Hubbard <[email protected]> Cc: Alistair Popple <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Claudio Imbrenda <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Howells <[email protected]> Cc: Mike Rapoport (IBM) <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
kawasaki · Feb 10, 2023 · 7ce154f · 7ce154f
1 parent afa3c33
commit 7ce154f
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diff --git a/include/linux/mm.h b/include/linux/mm.h
@@ -1268,8 +1268,6 @@ static inline void get_page(struct page *page)
 	folio_get(page_folio(page));
 }
 
-int __must_check try_grab_page(struct page *page, unsigned int flags);
-
 static inline __must_check bool try_get_page(struct page *page)
 {
 	page = compound_head(page);

diff --git a/mm/internal.h b/mm/internal.h
@@ -856,6 +856,7 @@ int migrate_device_coherent_page(struct page *page);
  * mm/gup.c
  */
 struct folio *try_grab_folio(struct page *page, int refs, unsigned int flags);
+int __must_check try_grab_page(struct page *page, unsigned int flags);
 
 extern bool mirrored_kernelcore;