[PATCH 0/3] Improve MMC error handling (3rd rev)
Chris Ball
cjb at laptop.org
Tue Jun 21 12:23:30 EDT 2011
Hi Russell,
On Mon, Jun 20 2011, Russell King - ARM Linux wrote:
> This is the third revision of my improvements to the MMC block
> device error handling, which makes error handling more robust
> and permits MMC/SD to continue working in the presence of
> not-quite-perfect setups.
>
> Without this, my Versatile Express tends to fail to mount its rootfs
> on SD. With this, it can successfully read and write data from the
> card in the presence of FIFO overruns and underruns, and also sensibly
> recover from command channel errors.
>
> There is more to come, but this is the "safer" bits of the improvements.
>
> drivers/mmc/card/block.c | 279 ++++++++++++++++++++++++++++++++++-----------
> include/linux/mmc/mmc.h | 10 ++
> 2 files changed, 221 insertions(+), 68 deletions(-)
Thanks, pushed to mmc-next for 3.1.
(I'll do some more testing myself and let you know if I find anything
unexpected.)
- Chris.
--
Chris Ball <cjb at laptop.org> <http://printf.net/>
One Laptop Per Child
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