At least pkt_start_write() operates on the bvec table directly, it isn't ready to enable multipage bvec yet, so mark the flag now. Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx> --- drivers/block/pktcdvd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 817d2cc17d01..403c93b46ea3 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2518,6 +2518,9 @@ static void pkt_init_queue(struct pktcdvd_device *pd) blk_queue_logical_block_size(q, CD_FRAMESIZE); blk_queue_max_hw_sectors(q, PACKET_MAX_SECTORS); q->queuedata = pd; + + /* not ready for multipage bvec yet */ + set_bit(QUEUE_FLAG_NO_MP, &q->queue_flags); } static int pkt_seq_show(struct seq_file *m, void *p) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html