cciss: fix residual count for block pc requests
We must complete the full request, so store the request count and then set the ->data_len to the residual count from the hardware. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -1287,6 +1287,7 @@ static void cciss_softirq_done(struct request *rq)
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{
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CommandList_struct *cmd = rq->completion_data;
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ctlr_info_t *h = hba[cmd->ctlr];
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unsigned int nr_bytes;
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unsigned long flags;
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u64bit temp64;
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int i, ddir;
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@ -1308,7 +1309,14 @@ static void cciss_softirq_done(struct request *rq)
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printk("Done with %p\n", rq);
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#endif /* CCISS_DEBUG */
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if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, blk_rq_bytes(rq)))
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/*
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* Store the full size and set the residual count for pc requests
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*/
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nr_bytes = blk_rq_bytes(rq);
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if (blk_pc_request(rq))
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rq->data_len = cmd->err_info->ResidualCnt;
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if (blk_end_request(rq, (rq->errors == 0) ? 0 : -EIO, nr_bytes))
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BUG();
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spin_lock_irqsave(&h->lock, flags);
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