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mm: simplify calling a compound page destructor

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None of the three callers of get_compound_page_dtor() want to know the
value; they just want to call the function.  Replace it with
destroy_compound_page() which calls the dtor for them.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20200517105051.9352-1-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2020-06-03 16:01:09 -07:00
committed by Linus Torvalds
parent 5be9934328
commit ff45fc3ca0
3 changed files with 5 additions and 8 deletions
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4
include/linux/mm.h
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@@ -876,10 +876,10 @@ static inline void set_compound_page_dtor(struct page *page,
page[1].compound_dtor = compound_dtor;
}
static inline compound_page_dtor *get_compound_page_dtor(struct page *page)
static inline void destroy_compound_page(struct page *page)
{
VM_BUG_ON_PAGE(page[1].compound_dtor >= NR_COMPOUND_DTORS, page);
return compound_page_dtors[page[1].compound_dtor];
compound_page_dtors[page[1].compound_dtor](page);
}
static inline unsigned int compound_order(struct page *page)