Messages in this thread Patch in this message | | | From | Ingo Molnar <> | Subject | [PATCH 07/52] mm/numa: split_huge_page: transfer the NUMA type from the pmd to the pte | Date | Sun, 2 Dec 2012 19:42:59 +0100 |
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From: Andrea Arcangeli <aarcange@redhat.com>
When we split a transparent hugepage, transfer the NUMA type from the pmd to the pte if needed.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Hugh Dickins <hughd@google.com> Cc: Paul Turner <pjt@google.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Cc: Alex Shi <lkml.alex@gmail.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@kernel.org> --- mm/huge_memory.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 35c66a2..cd24aa5 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1364,6 +1364,8 @@ static int __split_huge_page_map(struct page *page, BUG_ON(page_mapcount(page) != 1); if (!pmd_young(*pmd)) entry = pte_mkold(entry); + if (pmd_numa(*pmd)) + entry = pte_mknuma(entry); pte = pte_offset_map(&_pmd, haddr); BUG_ON(!pte_none(*pte)); set_pte_at(mm, haddr, pte, entry); -- 1.7.11.7
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