Hi David, On Tue, Nov 22, 2011 at 9:18 PM, David Taylor <dmtaylor@xxxxxxxxxx> wrote: > 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. > What happens if you run "dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=1000" and during dd the card is ejected? When I test this, the host is claimed until the dd has tried to transfer all 1000MB. Regards, Per -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
