Re: [PATCH 2/2] usbip: use monotonic timestamps

From: Shuah Khan
Date: Tue Nov 07 2017 - 16:11:23 EST


On 11/07/2017 04:22 AM, Krzysztof Opasiak wrote:
>
>
> On 11/07/2017 11:39 AM, Arnd Bergmann wrote:
>> This gets rid of the deprecated do_gettimeofday() function in usbip.
>> The comment above vgadget_get_frame() mentions that it suffers
>> from issues with the time jumps due to suspend and settimeofday,
>> so I'm changing it to use ktime_get_ts64() to use monotonic times
>> that don't have this problem.
>>
>> I couldn't tell whether we should use CLOCK_MONOTONIC or
>> CLOCK_MONOTONIC_RAW here, the difference being the exact rate
>> when correcting for NTP. I picked monotonic time since it doesn't
>> change the speed to the existing code and should be better
>> synchronized with other machines we talk to.
>>
>> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
>
> Looks good to me:
> Reviewed-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
>

Acked-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>

thanks,
-- Shuah