RE: [PATCH v4 0/2] Do not flush cache when it is disabled

[Avri Altman]

Ulf - Would you consider picking this sires up now?
I was hoping to close this bug.

Thanks,
Avri

> -----Original Message-----
> From: Avri Altman <avri.altman@xxxxxxx>
> Sent: Tuesday, 20 April 2021 16:47
> To: Ulf Hansson <ulf.hansson@xxxxxxxxxx>; linux-mmc@xxxxxxxxxxxxxxx; Adrian
> Hunter <adrian.hunter@xxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx; Avri Altman <Avri.Altman@xxxxxxx>
> Subject: [PATCH v4 0/2] Do not flush cache when it is disabled
> 
> v3 -> v4
>  - Attend Adrian's comments
>  - Add Acked-by tag
> 
> v2 -> v3:
>  - rebase onto recent cache changes
> 
> v1 -> v2:
>  - Attend Adrian's comments
> 
> Cache is a temporary storage space in an eMMC device. Volatile by
> nature, the cache should in typical case reduce the access time compared
> to an access to the main nonvolatile storage.
> 
> The cache function can be turned ON and OFF. Once OFF, the host is not
> expected to issue a flush-cache command to the device.
> 
> Avri Altman (2):
>   mmc: block: Issue flush only if allowed
>   mmc: block: Update ext_csd.cache_ctrl if it was written
> 
>  drivers/mmc/core/block.c   | 21 +++++++++++++++++++++
>  drivers/mmc/core/mmc.c     |  2 +-
>  drivers/mmc/core/mmc_ops.h |  5 +++++
>  3 files changed, 27 insertions(+), 1 deletion(-)
> 
> --
> 2.25.1