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    Subject[PATCH v3 01/49] block: drbd: comment on direct access bvec table
    Date
    Signed-off-by: Ming Lei <ming.lei@redhat.com>
    ---
    drivers/block/drbd/drbd_bitmap.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
    index 809fd245c3dc..70890d950dc9 100644
    --- a/drivers/block/drbd/drbd_bitmap.c
    +++ b/drivers/block/drbd/drbd_bitmap.c
    @@ -953,6 +953,7 @@ static void drbd_bm_endio(struct bio *bio)
    struct drbd_bm_aio_ctx *ctx = bio->bi_private;
    struct drbd_device *device = ctx->device;
    struct drbd_bitmap *b = device->bitmap;
    + /* single page bio, safe for multipage bvec */
    unsigned int idx = bm_page_to_idx(bio->bi_io_vec[0].bv_page);

    if ((ctx->flags & BM_AIO_COPY_PAGES) == 0 &&
    --
    2.9.4
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