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    Subject[PATCH v14 12/17] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing
    Date
    ZERO_PAGE can't go away, no need to hold an extra reference.

    Signed-off-by: David Howells <dhowells@redhat.com>
    Reviewed-by: David Hildenbrand <david@redhat.com>
    Reviewed-by: John Hubbard <jhubbard@nvidia.com>
    cc: Al Viro <viro@zeniv.linux.org.uk>
    cc: David Hildenbrand <david@redhat.com>
    cc: linux-fsdevel@vger.kernel.org
    ---
    fs/iomap/direct-io.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
    index 9804714b1751..47db4ead1e74 100644
    --- a/fs/iomap/direct-io.c
    +++ b/fs/iomap/direct-io.c
    @@ -202,7 +202,7 @@ static void iomap_dio_zero(const struct iomap_iter *iter, struct iomap_dio *dio,
    bio->bi_private = dio;
    bio->bi_end_io = iomap_dio_bio_end_io;

    - get_page(page);
    + bio_set_flag(bio, BIO_NO_PAGE_REF);
    __bio_add_page(bio, page, len, 0);
    iomap_dio_submit_bio(iter, dio, bio, pos);
    }
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