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From: Adrian Hunter <adrian.hunter@nokia.com>
To: Sukumar Ghorai <s-ghorai@ti.com>
Cc: "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] mmc: failure of block read wait for long time
Date: Tue, 27 Jul 2010 16:22:13 +0300	[thread overview]
Message-ID: <4C4EDD85.5060606@nokia.com> (raw)
In-Reply-To: <1280230066-27612-1-git-send-email-s-ghorai@ti.com>

Sukumar Ghorai wrote:
>  multi-block read failure retries in single block read one by one. It continues
>  retry of subsequent blocks, even after failure. Application will not be able
>  to decode the interleave data (even if few single block read success).
>  This patch fixes this problem by returning at the first failure instead of
>  waiting for long duration.

How can you know what sectors are important to the upper layers?

> 
> Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
> ---
>  drivers/mmc/card/block.c |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> index cb9fbc8..cfb0827 100644
> --- a/drivers/mmc/card/block.c
> +++ b/drivers/mmc/card/block.c
> @@ -419,7 +419,6 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
>  				spin_lock_irq(&md->lock);
>  				ret = __blk_end_request(req, -EIO, brq.data.blksz);
>  				spin_unlock_irq(&md->lock);
> -				continue;
>  			}
>  			goto cmd_err;
>  		}
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

WARNING: multiple messages have this Message-ID (diff)
From: adrian.hunter@nokia.com (Adrian Hunter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] mmc: failure of block read wait for long time
Date: Tue, 27 Jul 2010 16:22:13 +0300	[thread overview]
Message-ID: <4C4EDD85.5060606@nokia.com> (raw)
In-Reply-To: <1280230066-27612-1-git-send-email-s-ghorai@ti.com>

Sukumar Ghorai wrote:
>  multi-block read failure retries in single block read one by one. It continues
>  retry of subsequent blocks, even after failure. Application will not be able
>  to decode the interleave data (even if few single block read success).
>  This patch fixes this problem by returning at the first failure instead of
>  waiting for long duration.

How can you know what sectors are important to the upper layers?

> 
> Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
> ---
>  drivers/mmc/card/block.c |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> index cb9fbc8..cfb0827 100644
> --- a/drivers/mmc/card/block.c
> +++ b/drivers/mmc/card/block.c
> @@ -419,7 +419,6 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
>  				spin_lock_irq(&md->lock);
>  				ret = __blk_end_request(req, -EIO, brq.data.blksz);
>  				spin_unlock_irq(&md->lock);
> -				continue;
>  			}
>  			goto cmd_err;
>  		}
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

  reply	other threads:[~2010-07-27 13:22 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-27 11:27 [PATCH] mmc: failure of block read wait for long time Sukumar Ghorai
2010-07-27 11:27 ` Sukumar Ghorai
2010-07-27 13:22 ` Adrian Hunter [this message]
2010-07-27 13:22   ` Adrian Hunter
2010-07-27 13:32   ` Ghorai, Sukumar
2010-07-27 13:32     ` Ghorai, Sukumar
2010-07-28  8:41     ` Adrian Hunter
2010-07-28  8:41       ` Adrian Hunter
2010-09-10 11:30       ` Ghorai, Sukumar
2010-09-10 11:30         ` Ghorai, Sukumar
2010-09-10 11:43         ` Adrian Hunter
2010-09-10 11:43           ` Adrian Hunter
2010-09-10 11:48           ` Ghorai, Sukumar
2010-09-10 11:48             ` Ghorai, Sukumar
2010-09-10 13:02             ` Adrian Hunter
2010-09-10 13:02               ` Adrian Hunter
2010-09-14  5:15               ` Ghorai, Sukumar
2010-09-14  5:15                 ` Ghorai, Sukumar
2010-09-20  7:54                 ` Adrian Hunter
2010-09-20  7:54                   ` Adrian Hunter
2010-09-20  8:57                   ` Ghorai, Sukumar
2010-09-20  8:57                     ` Ghorai, Sukumar
2010-09-20 11:49                     ` Adrian Hunter
2010-09-20 11:49                       ` Adrian Hunter
2010-09-20 12:37                       ` Ghorai, Sukumar
2010-09-20 12:37                         ` Ghorai, Sukumar
2010-09-20 13:09                         ` Adrian Hunter
2010-09-20 13:09                           ` Adrian Hunter
2010-09-20 13:25                           ` Ghorai, Sukumar
2010-09-20 13:25                             ` Ghorai, Sukumar
2010-09-20 13:37                           ` Russell King - ARM Linux
2010-09-20 13:37                             ` Russell King - ARM Linux
2010-09-22  5:32                             ` Ghorai, Sukumar
2010-09-22  5:32                               ` Ghorai, Sukumar
2010-09-22 12:43                               ` Chris Ball
2010-09-22 12:43                                 ` Chris Ball
2010-09-22 12:51                                 ` Ghorai, Sukumar
2010-09-22 12:51                                   ` Ghorai, Sukumar
2010-09-24 14:35                                 ` Ghorai, Sukumar
2010-09-24 14:35                                   ` Ghorai, Sukumar
2010-09-28 15:03                                 ` Ghorai, Sukumar
2010-09-28 15:03                                   ` Ghorai, Sukumar
2010-09-28 18:32                                   ` Adrian Hunter
2010-09-28 18:32                                     ` Adrian Hunter
2010-09-28 18:59                                     ` Ghorai, Sukumar
2010-09-28 18:59                                       ` Ghorai, Sukumar
2010-09-28 20:05                                       ` Adrian Hunter
2010-09-28 20:05                                         ` Adrian Hunter
2010-09-29  5:59                                         ` Ghorai, Sukumar
2010-09-29  5:59                                           ` Ghorai, Sukumar
2010-08-27 20:59 ` Chris Ball
2010-08-27 20:59   ` Chris Ball
2010-08-30 19:09   ` Ghorai, Sukumar
2010-08-30 19:09     ` Ghorai, Sukumar

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