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mm: page_alloc: make compound_page_dtors static
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It's only used inside page_alloc.c now. So make it static and remove the
declaration in mm.h.

Link: https://lkml.kernel.org/r/20230617034622.1235913-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Miaohe Lin authored and Andrew Morton committed Jun 19, 2023
1 parent ff71f26 commit cf01724
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Showing 2 changed files with 1 addition and 2 deletions.
1 change: 0 additions & 1 deletion include/linux/mm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1220,7 +1220,6 @@ enum compound_dtor_id {
#endif
NR_COMPOUND_DTORS,
};
extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS];

static inline void folio_set_compound_dtor(struct folio *folio,
enum compound_dtor_id compound_dtor)
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2 changes: 1 addition & 1 deletion mm/page_alloc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -284,7 +284,7 @@ const char * const migratetype_names[MIGRATE_TYPES] = {
#endif
};

compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
static compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
[NULL_COMPOUND_DTOR] = NULL,
[COMPOUND_PAGE_DTOR] = free_compound_page,
#ifdef CONFIG_HUGETLB_PAGE
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