Re: [PATCH 3.12 137/142] mmc: sh_mmcif: Fix timeout value for command request

From: Jiri Slaby
Date: Sat May 16 2015 - 07:23:52 EST


On 05/16/2015, 01:05 PM, Albino Biasutti Neto wrote:
> 2015-05-16 4:38 GMT-03:00 Jiri Slaby <jslaby@xxxxxxx>:
>> commit bad4371d87d1d1ed1aecd9c9cc21c41ac3f289c8 upstream.
>>
>> f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout")
>> changed the timeout value from 1000 jiffies to 1s. In the case where
>> HZ is 1000 the values are the same. However, for smaller HZ values the
>> timeout is now smaller, 1s instead of 10s in the case of HZ=100.
>>
>> Since the timeout occurs in spite of a normal data transfer a timeout of
>> 10s seems more appropriate. This restores the previous timeout in the
>> case where HZ=100 and results in an increase over the previous timeout
>> for larger values of HZ.
>>
>> Fixes: f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout")
>
> What is best 1s or 10s ? is 1s. The less time is faster, but HZ=100
> not 1000. 10s the longer answer.
>
> True ?

Sorry, what?

--
js
suse labs
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