Re: [PATCH 2/2] rust: sync: add `CondVar::wait_timeout`

[Alice Ryhl]

On Wed, Dec 6, 2023 at 5:39 PM Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> On Wed, Dec 06, 2023 at 08:30:06AM -0800, Boqun Feng wrote:
> > On Wed, Dec 06, 2023 at 10:09:24AM +0000, Alice Ryhl wrote:
> > [...]
> > > +
> > > +/// The return type of `wait_timeout`.
> > > +pub enum CondVarTimeoutResult {
> > > +    /// The timeout was reached.
> > > +    Timeout,
> > > +    /// Somebody woke us up.
> > > +    Woken {
> > > +        /// Remaining sleep duration.
> > > +        jiffies: u64,
> >
> > I have a Jiffies definition in the my upcoming timer patchset:
> >
> > /// The time unit of Linux kernel. One jiffy equals (1/HZ) second.
> > pub type Jiffies = core::ffi::c_ulong;
> >
> > Maybe you can add that (in a separate patch) in kernel::time?
>
> Urgh, why are we using jiffies in 2023?

I assumed that the correct thing here would be to accept the same unit
as what schedule_timeout takes. Should I be doing something else?

Alice