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SubjectRe: [PATCH] libata: limit post SRST nsect/lbal wait to ~100ms
Tejun Heo wrote:
> After SRST, libata used to wait for nsect/lbal to be set to 1/1 for
> the slave device. However, some ATAPI devices don't set nsect/lbal
> after SRST and the wait itself isn't too useful as we're gonna wait
> for !BSY right after that anyway.
>
> Before reset-seq update, nsect/lbal wait failure used to be ignored
> and caused 30sec delay during detection. After reset-seq, all
> timeouts are considered error conditions making libata fail to detect
> such ATAPI devices.
>
> This patch limits nsect/lbal wait to around 100ms. This should give
> acceptable behavior to such ATAPI devices while not disturbing the
> heavily used code path too much.
>
> Signed-off-by: Tejun Heo <htejun@gmail.com>
> ---
> Okay, here it is. Sorry for the delay.

applied


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