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    Subject[PATCH v4 5/5] mm: replace multiple dcache flush with flush_dcache_folio()
    Date
    Simplify the code by using flush_dcache_folio().

    Signed-off-by: Muchun Song <songmuchun@bytedance.com>
    ---
    mm/migrate.c | 8 ++------
    1 file changed, 2 insertions(+), 6 deletions(-)

    diff --git a/mm/migrate.c b/mm/migrate.c
    index c418e8d92b9c..daf2b3508670 100644
    --- a/mm/migrate.c
    +++ b/mm/migrate.c
    @@ -933,12 +933,8 @@ static int move_to_new_page(struct page *newpage, struct page *page,
    if (!PageMappingFlags(page))
    page->mapping = NULL;

    - if (likely(!is_zone_device_page(newpage))) {
    - int i, nr = compound_nr(newpage);
    -
    - for (i = 0; i < nr; i++)
    - flush_dcache_page(newpage + i);
    - }
    + if (likely(!is_zone_device_page(newpage)))
    + flush_dcache_folio(page_folio(newpage));
    }
    out:
    return rc;
    --
    2.11.0
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