linux-kernel - RE: [PATCH v6 2/3] mmc: core: Support packed write command for eMMC4.5 device

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Message-id: <000201cd3fba$942df840$bc89e8c0$%jun@samsung.com>
Date:	Fri, 01 Jun 2012 14:51:23 +0900
From:	Seungwon Jeon <tgih.jun@...sung.com>
To:	merez@...eaurora.org
Cc:	linux-mmc@...r.kernel.org, 'Chris Ball' <cjb@...top.org>,
	linux-kernel@...r.kernel.org
Subject: RE: [PATCH v6 2/3] mmc: core: Support packed write command for eMMC4.5
 device

Maya Erez <merez@...eaurora.org> wrote:
> > @@ -1313,10 +1609,17 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue
> *mq, struct request *rqc)
> >  			 * A block was successfully transferred.
> >  			 */
> >  			mmc_blk_reset_success(md, type);
> > -			spin_lock_irq(&md->lock);
> > -			ret = __blk_end_request(req, 0,
> > +
> > +			if (mq_rq->packed_cmd != MMC_PACKED_NONE) {
> > +				ret = mmc_blk_end_packed_req(mq, mq_rq);
> If a specific request in the packed request consistantly fails, there is
> nothing to stop us from sending the same packed request in an endless
> loop.
There is various error case. This patch reused the existing error handling.
What is that case we need to consider?

Best regards,
Seungwon Jeon

> > +				break;
> 
> Thanks,
> Maya Erez
> Consultant for Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
> 
> 
> 
> 
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