All of lore.kernel.org
 help / color / mirror / Atom feed
From: Chris Ball <cjb@laptop.org>
To: Sukumar Ghorai <s-ghorai@ti.com>
Cc: linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Adrian Hunter <adrian.hunter@nokia.com>
Subject: Re: [PATCH] mmc: failure of block read wait for long time
Date: Fri, 27 Aug 2010 21:59:54 +0100	[thread overview]
Message-ID: <20100827205954.GA27804@void.printf.net> (raw)
In-Reply-To: <1280230066-27612-1-git-send-email-s-ghorai@ti.com>

Hi,

On Tue, Jul 27, 2010 at 04:57:46PM +0530, 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.
> 
> 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;
>  		}
> --

Sukumar/Adrian, any thoughts on a new version of this patch containing
Adrian's retry-segments idea?

-- 
Chris Ball   <cjb@laptop.org>   <http://printf.net/>
One Laptop Per Child

WARNING: multiple messages have this Message-ID (diff)
From: cjb@laptop.org (Chris Ball)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] mmc: failure of block read wait for long time
Date: Fri, 27 Aug 2010 21:59:54 +0100	[thread overview]
Message-ID: <20100827205954.GA27804@void.printf.net> (raw)
In-Reply-To: <1280230066-27612-1-git-send-email-s-ghorai@ti.com>

Hi,

On Tue, Jul 27, 2010 at 04:57:46PM +0530, 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.
> 
> 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;
>  		}
> --

Sukumar/Adrian, any thoughts on a new version of this patch containing
Adrian's retry-segments idea?

-- 
Chris Ball   <cjb@laptop.org>   <http://printf.net/>
One Laptop Per Child

  parent reply	other threads:[~2010-08-27 20:59 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
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 [this message]
2010-08-27 20:59   ` Chris Ball
2010-08-30 19:09   ` Ghorai, Sukumar
2010-08-30 19:09     ` Ghorai, Sukumar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20100827205954.GA27804@void.printf.net \
    --to=cjb@laptop.org \
    --cc=adrian.hunter@nokia.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-mmc@vger.kernel.org \
    --cc=s-ghorai@ti.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.