On Wed, 16 Oct 2024 10:25:11 +0200
Alice Ryhl [off-list ref] wrote:

On Wed, Oct 16, 2024 at 5:53 AM FUJITA Tomonori
[off-list ref] wrote:

quoted

Change the output type of Ktime's subtraction operation from Ktime to
Delta. Currently, the output is Ktime:

Ktime = Ktime - Ktime

It means that Ktime is used to represent timedelta. Delta is
introduced so use it. A typical example is calculating the elapsed
time:

Delta = current Ktime - past Ktime;

Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>

So this means that you are repurposing Ktime as a replacement for
Instant rather than making both a Delta and Instant type? Okay. That
seems reasonable enough.

Yes.

Surely, we could create both Delta and Instant. What is Ktime used
for? Both can simply use bindings::ktime_t like the followings?

pub struct Instant {
    inner: bindings::ktime_t,
}

pub struct Delta {
    inner: bindings::ktime_t,
}