Re: [PATCH] mmc: core: Kill block requests if card is removed

[David Taylor <dmtaylor@skytex.net>]

Sujit Reddy Thumma <sthumma <at> codeaurora.org> writes:

> 
> Kill block requests when the host knows that the card is
> removed from the slot and is sure that subsequent requests
> are bound to fail. Do this silently so that the block
> layer doesn't output unnecessary error messages.
> 
> This patch implements suggestion from Adrian Hunter,
> http://thread.gmane.org/gmane.linux.kernel.mmc/2714/focus=3474
> 
> Signed-off-by: Sujit Reddy Thumma <sthumma <at> codeaurora.org>
> ---
>  drivers/mmc/card/queue.c |    5 +++++
>  drivers/mmc/core/bus.c   |    2 ++
>  include/linux/mmc/card.h |    3 +++
>  3 files changed, 10 insertions(+), 0 deletions(-)
> 

Thanks, this patch worked nicely to control a seemingly endless series of 
driver complaints when the SD card was removed during a transfer.

The OMAP4 I'm working on has hardware assisted detection of card removal, and 
this patch looks like it will be sufficient.