mmc: core: Avoid hogging the CPU while polling for busy for mmc ioctls

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When __mmc_blk_ioctl_cmd() calls card_busy_detect() to verify that the
card's states moves back into transfer state, the polling with CMD13 is
done without any delays in between the commands being sent.

Rather than fixing card_busy_detect() in this regards, let's instead
convert into using the common mmc_poll_for_busy(), which also helps us to
avoid open-coding.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20210702134229.357717-3-ulf.hansson@linaro.org

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Ulf Hansson 2021-07-02 15:42:28 +02:00

parent 972d508483

commit 468108155b

1 changed files with 2 additions and 1 deletions

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drivers/mmc/core/block.c

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