Here is the missing header:
no_cluster is used by device mapper (may be others) resulting in
multipath devices setting QUEUE_FLAG_CLUSTER flag even though the
underlying devices (e.g. open iscsi virtual adapter) don't support it.
Signed-off-by: Malahal Naineni (malahal@xxxxxxxxxx)
Malahal Naineni [malahal@xxxxxxxxxx] wrote:
> diff -r 8305d08f6ecf -r 5e7598cf7714 drivers/scsi/scsi_lib.c
> --- a/drivers/scsi/scsi_lib.c Wed Aug 25 13:44:33 2010 -0700
> +++ b/drivers/scsi/scsi_lib.c Wed Aug 25 13:44:33 2010 -0700
> @@ -1633,8 +1633,10 @@ struct request_queue *__scsi_alloc_queue
> blk_queue_max_segment_size(q, dma_get_max_seg_size(dev));
>
> /* New queue, no concurrency on queue_flags */
> - if (!shost->use_clustering)
> + if (!shost->use_clustering) {
> queue_flag_clear_unlocked(QUEUE_FLAG_CLUSTER, q);
> + q->limits.no_cluster = 1;
> + }
>
> /*
> * set a reasonable default alignment on word boundaries: the
>
> --
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