Re: RFC: 32-bit __data_len and REQ_DISCARD+REQ_SECURE

[Jeff Moyer]

Ulf Hansson <ulf.hansson@xxxxxxxxxx> writes:

> I am not sure if this issue is the same as been discussed earlier on
> the mmc list regarding "discard/erase".
>
> Anyway, there have been several attempts to fix bugs related to this.
> One of these discussion kind of pointed out a viable solution, but
> unfortunate no patches that adopts that solution have been posted yet.
>
> You might want to read up on this.
> https://www.mail-archive.com/linux-mmc@xxxxxxxxxxxxxxx/msg23643.html
> http://linux-mmc.vger.kernel.narkive.com/Wp31G953/patch-mmc-core-don-t-return-1-for-max-discard
>
> So this is an old issue, which should have been fixed long long long time ago...

Thanks Ulf.  After reading all of the linked discussions, it's my
understanding that this is an emmc-specific issue that doesn't require
any block layer changes.  If that's wrong, please let me know.

Cheers,
Jeff
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