Re: [PATCH] tty: n_tty: convert the full VTIME interval to jiffies

[Greg KH]

On Thu, Oct 29, 2026 at 12:20:52AM +0000, Hungyu Lin wrote:
> VTIME specifies a timeout in tenths of a second, but n_tty_read() divides
> HZ by 10 before multiplying by VTIME. For supported HZ values that are
> not divisible by 10, this truncates each decisecond and shortens the
> requested interval. For example, HZ=128 and VTIME=40 produce 480 ticks
> instead of 512 ticks for four seconds.

What real system uses HZ=128 ?

In other words, is this a real issue at all?

thanks,

greg k-h