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thp: comment reminder in destroy_compound_page

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Warn destroy_compound_page that __split_huge_page_refcount is heavily
dependent on its internal behavior.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrea Arcangeli 2011-01-13 15:46:38 -08:00 committed by Linus Torvalds
parent 14fd403f21
commit 59ff421631
1 changed files with 1 additions and 0 deletions
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mm/page_alloc.c
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@ -357,6 +357,7 @@ void prep_compound_page(struct page *page, unsigned long order)
}
}
/* update __split_huge_page_refcount if you change this function */
static int destroy_compound_page(struct page *page, unsigned long order)
{
int i;