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SubjectRe: [PATCH v5 0/3] Introduce the request_atomic() for the host
On Mon, 13 Apr 2020 at 04:46, Baolin Wang <baolin.wang7@gmail.com> wrote:
>
> This patch set introduces a new request_atomic() interface for the
> MMC host controller, which is used to submit a request to host in
> the atomic context, such as in the irq hard handler, to reduce the
> request latency.
>
> Note, this patch set is based on Adrian's patch set:
> https://www.spinics.net/lists/linux-mmc/msg58529.html
>
> Any comments are welcome. Thanks.
>
> Changes from v4:
> - Remove redundant checking when warning the return value of request_atomic().
> - Add acked tag from Adrian for patch 1.
> - Re-implement the request_atomic() based on the Adrian's patch set.
>
> Changes from v3:
> - Move patch 3 of V3 patch set into patch 1.
> - Add a warning for unexpected return value of request_atomic().
> - Remove redundant checking of ops->request().
>
> Changes from v2:
> - Return busy flag if encountering unusual card busy state
> instead of polling in interrupt context.
> - Add a work for HSQ to try again in non-atomic context if the host
> returns busy flag.
>
> Changes from v1:
> - Re-split the changes to make them more clear suggested by Ulf.
> - Factor out the auto CMD23 checking into a separate function.
>
> Baolin Wang (3):
> mmc: host: Introduce the request_atomic() for the host
> mmc: host: sdhci: Implement the request_atomic() API
> mmc: host: sdhci-sprd: Implement the request_atomic() API
>
> drivers/mmc/host/mmc_hsq.c | 29 ++++++++++++++++++++++++++++-
> drivers/mmc/host/mmc_hsq.h | 1 +
> drivers/mmc/host/sdhci-sprd.c | 23 ++++++++++++++++++++---
> drivers/mmc/host/sdhci.c | 34 ++++++++++++++++++++++++++++++++++
> drivers/mmc/host/sdhci.h | 1 +
> include/linux/mmc/host.h | 3 +++
> 6 files changed, 87 insertions(+), 4 deletions(-)
>
> --
> 2.17.1
>

Applied for next, thanks!

Kind regards
Uffe

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