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    Subject[Part3 PATCH v2 3/4] mem-hotplug: Skip LOCAL_NODE_DATA pages in memory online procedure.
    Date
    Pages marked as LOCAL_NODE_DATA are skipped when we do memory offline.
    So we have to skip them again when we do memory online.

    Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
    ---
    mm/memory_hotplug.c | 5 +++++
    1 files changed, 5 insertions(+), 0 deletions(-)

    diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
    index c2017eb..3561048 100644
    --- a/mm/memory_hotplug.c
    +++ b/mm/memory_hotplug.c
    @@ -843,6 +843,11 @@ static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages,
    if (PageReserved(pfn_to_page(start_pfn)))
    for (i = 0; i < nr_pages; i++) {
    page = pfn_to_page(start_pfn + i);
    +
    + /* Skip pages storing local node kernel data. */
    + if (is_local_node_data(page))
    + continue;
    +
    (*online_page_callback)(page);
    onlined_pages++;
    }
    --
    1.7.1


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