lkml.org 
[lkml]   [2012]   [Nov]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 14/46] mm: numa: split_huge_page: transfer the NUMA type from the pmd to the pte
    Date
    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>
    ---
    mm/huge_memory.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/mm/huge_memory.c b/mm/huge_memory.c
    index 40f17c3..3aaf242 100644
    --- a/mm/huge_memory.c
    +++ b/mm/huge_memory.c
    @@ -1363,6 +1363,8 @@ 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);
    --
    1.7.9.2


    \
     
     \ /
      Last update: 2012-11-21 13:01    [W:2.074 / U:0.040 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site