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thp: split_huge_page_mm/vma

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split_huge_page_pmd compat code.  Each one of those would need to be
expanded to hundred of lines of complex code without a fully reliable
split_huge_page_pmd design.

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: Johannes Weiner <hannes@cmpxchg.org>
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 15:46:46 -08:00
committed by Linus Torvalds
parent e7a00c45f2
commit bae9c19bf1
6 changed files with 6 additions and 0 deletions
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mm/mremap.c
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@@ -41,6 +41,7 @@ static pmd_t *get_old_pmd(struct mm_struct *mm, unsigned long addr)
return NULL;
pmd = pmd_offset(pud, addr);
split_huge_page_pmd(mm, pmd);
if (pmd_none_or_clear_bad(pmd))
return NULL;