[patch 083/200] mm: move free_unref_page to mm/internal.h

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From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: move free_unref_page to mm/internal.h

Code outside mm/ should not be calling free_unref_page().  Also move
free_unref_page_list().

Link: https://lkml.kernel.org/r/20201125034655.27687-2-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/gfp.h |    2 --
 mm/internal.h       |    3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

--- a/include/linux/gfp.h~mm-move-free_unref_page-to-mm-internalh
+++ a/include/linux/gfp.h
@@ -580,8 +580,6 @@ void * __meminit alloc_pages_exact_nid(i
 
 extern void __free_pages(struct page *page, unsigned int order);
 extern void free_pages(unsigned long addr, unsigned int order);
-extern void free_unref_page(struct page *page);
-extern void free_unref_page_list(struct list_head *list);
 
 struct page_frag_cache;
 extern void __page_frag_cache_drain(struct page *page, unsigned int count);
--- a/mm/internal.h~mm-move-free_unref_page-to-mm-internalh
+++ a/mm/internal.h
@@ -199,6 +199,9 @@ extern void post_alloc_hook(struct page
 					gfp_t gfp_flags);
 extern int user_min_free_kbytes;
 
+extern void free_unref_page(struct page *page);
+extern void free_unref_page_list(struct list_head *list);
+
 extern void zone_pcp_update(struct zone *zone);
 extern void zone_pcp_reset(struct zone *zone);
 
_




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