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    Subject[PATCH 5/5] mm: move_pages: no need to set pp->page to ZERO_PAGE(0) by default
    pp->page is never used when not set to the right page, so there is
    no need to set it to ZERO_PAGE(0) by default.

    Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
    ---
    mm/migrate.c | 6 ------
    1 files changed, 0 insertions(+), 6 deletions(-)

    diff --git a/mm/migrate.c b/mm/migrate.c
    index 175e242..2453444 100644
    --- a/mm/migrate.c
    +++ b/mm/migrate.c
    @@ -878,12 +878,6 @@ static int do_move_page_to_node_array(struct mm_struct *mm,
    struct vm_area_struct *vma;
    struct page *page;

    - /*
    - * A valid page pointer that will not match any of the
    - * pages that will be moved.
    - */
    - pp->page = ZERO_PAGE(0);
    -
    err = -EFAULT;
    vma = find_vma(mm, pp->addr);
    if (!vma || !vma_migratable(vma))
    --
    1.5.6.5




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