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    Subject[PATCH v14 107/138] iomap: Convert iomap_migrate_page to use folios
    Date
    The arguments are still pages for now, but we can use folios internally
    and cut out a lot of calls to compound_head().

    Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
    ---
    fs/iomap/buffered-io.c | 12 +++++++-----
    1 file changed, 7 insertions(+), 5 deletions(-)

    diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
    index 0731e2c3f44b..48de198c5603 100644
    --- a/fs/iomap/buffered-io.c
    +++ b/fs/iomap/buffered-io.c
    @@ -490,19 +490,21 @@ int
    iomap_migrate_page(struct address_space *mapping, struct page *newpage,
    struct page *page, enum migrate_mode mode)
    {
    + struct folio *folio = page_folio(page);
    + struct folio *newfolio = page_folio(newpage);
    int ret;

    - ret = migrate_page_move_mapping(mapping, newpage, page, 0);
    + ret = folio_migrate_mapping(mapping, newfolio, folio, 0);
    if (ret != MIGRATEPAGE_SUCCESS)
    return ret;

    - if (page_has_private(page))
    - attach_page_private(newpage, detach_page_private(page));
    + if (folio_test_private(folio))
    + folio_attach_private(newfolio, folio_detach_private(folio));

    if (mode != MIGRATE_SYNC_NO_COPY)
    - migrate_page_copy(newpage, page);
    + folio_migrate_copy(newfolio, folio);
    else
    - migrate_page_states(newpage, page);
    + folio_migrate_flags(newfolio, folio);
    return MIGRATEPAGE_SUCCESS;
    }
    EXPORT_SYMBOL_GPL(iomap_migrate_page);
    --
    2.30.2
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