From: Boqun Feng <boqun.feng@gmail.com>
To: Alice Ryhl <aliceryhl@google.com>
Cc: FUJITA Tomonori <fujita.tomonori@gmail.com>,
netdev@vger.kernel.org, rust-for-linux@vger.kernel.org,
andrew@lunn.ch, hkallweit1@gmail.com, tmgross@umich.edu,
ojeda@kernel.org, alex.gaynor@gmail.com, gary@garyguo.net,
bjorn3_gh@protonmail.com, benno.lossin@proton.me,
a.hindborg@samsung.com, anna-maria@linutronix.de,
frederic@kernel.org, tglx@linutronix.de, arnd@arndb.de,
jstultz@google.com, sboyd@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v3 3/8] rust: time: Change output of Ktime's sub operation to Delta
Date: Wed, 16 Oct 2024 12:47:18 -0700 [thread overview]
Message-ID: <ZxAYRthmAIHfW5c2@Boquns-Mac-mini.local> (raw)
In-Reply-To: <CAH5fLgjKH_mQcAjwtAWAxnFYXvL6z24=Zcp-ou188-c=eQwPBw@mail.gmail.com>
On Wed, Oct 16, 2024 at 10:25:11AM +0200, Alice Ryhl wrote:
> On Wed, Oct 16, 2024 at 5:53 AM FUJITA Tomonori
> <fujita.tomonori@gmail.com> wrote:
> >
> > 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.
>
I think it's still reasonable to introduce a `Instant<ClockSource>` type
(based on `Ktime`) to avoid some mis-uses, but we can do that in the
future.
Regards,
Boqun
> Reviewed-by: Alice Ryhl <aliceryhl@google.com>
>
> Alice
>
next prev parent reply other threads:[~2024-10-16 19:47 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-16 3:52 [PATCH net-next v3 0/8] rust: Add IO polling FUJITA Tomonori
2024-10-16 3:52 ` [PATCH net-next v3 1/8] rust: time: Add PartialEq/Eq/PartialOrd/Ord trait to Ktime FUJITA Tomonori
2024-10-16 8:22 ` Alice Ryhl
2024-10-16 3:52 ` [PATCH net-next v3 2/8] rust: time: Introduce Delta type FUJITA Tomonori
2024-10-16 8:23 ` Alice Ryhl
2024-10-17 11:15 ` FUJITA Tomonori
2024-10-17 10:17 ` Fiona Behrens
2024-10-17 11:24 ` FUJITA Tomonori
2024-10-18 13:49 ` Andrew Lunn
2024-10-18 14:31 ` Miguel Ojeda
2024-10-18 16:55 ` Andrew Lunn
2024-10-19 12:21 ` Miguel Ojeda
2024-10-19 12:41 ` Miguel Ojeda
2024-10-23 11:53 ` FUJITA Tomonori
2024-10-23 13:09 ` Miguel Ojeda
2024-10-19 18:41 ` Andrew Lunn
2024-10-20 13:05 ` Miguel Ojeda
2024-10-23 12:19 ` FUJITA Tomonori
2024-10-16 3:52 ` [PATCH net-next v3 3/8] rust: time: Change output of Ktime's sub operation to Delta FUJITA Tomonori
2024-10-16 8:25 ` Alice Ryhl
2024-10-16 19:47 ` Boqun Feng [this message]
2024-10-17 7:10 ` FUJITA Tomonori
2024-10-17 8:22 ` Alice Ryhl
2024-10-17 16:45 ` Miguel Ojeda
2024-10-23 1:58 ` FUJITA Tomonori
2024-10-16 20:03 ` Boqun Feng
2024-10-17 9:17 ` FUJITA Tomonori
2024-10-16 3:52 ` [PATCH net-next v3 4/8] rust: time: Implement addition of Ktime and Delta FUJITA Tomonori
2024-10-16 8:25 ` Alice Ryhl
2024-10-16 19:54 ` Boqun Feng
2024-10-17 9:31 ` FUJITA Tomonori
2024-10-17 9:33 ` Alice Ryhl
2024-10-17 16:33 ` Miguel Ojeda
2024-10-17 17:03 ` Boqun Feng
2024-10-17 18:10 ` Miguel Ojeda
2024-10-17 19:02 ` Boqun Feng
2024-10-17 18:58 ` Miguel Ojeda
2024-10-25 20:47 ` Boqun Feng
2024-10-23 6:51 ` FUJITA Tomonori
2024-10-23 10:59 ` Miguel Ojeda
2024-10-23 11:24 ` FUJITA Tomonori
2024-10-16 3:52 ` [PATCH net-next v3 5/8] rust: time: Add wrapper for fsleep function FUJITA Tomonori
2024-10-16 8:29 ` Alice Ryhl
2024-10-16 9:42 ` Miguel Ojeda
2024-10-24 0:22 ` FUJITA Tomonori
2024-10-24 17:26 ` Miguel Ojeda
2024-10-23 12:33 ` FUJITA Tomonori
2024-10-18 14:05 ` Andrew Lunn
2024-10-16 3:52 ` [PATCH net-next v3 6/8] MAINTAINERS: rust: Add TIMEKEEPING and TIMER abstractions FUJITA Tomonori
2024-10-16 3:52 ` [PATCH net-next v3 7/8] rust: Add read_poll_timeout functions FUJITA Tomonori
2024-10-16 8:37 ` Alice Ryhl
2024-10-18 14:16 ` FUJITA Tomonori
2024-10-16 8:45 ` Alice Ryhl
2024-10-16 8:52 ` Alice Ryhl
2024-10-16 11:05 ` Miguel Ojeda
2024-10-18 8:10 ` FUJITA Tomonori
2024-10-18 8:30 ` Alice Ryhl
2024-10-18 14:15 ` Andrew Lunn
2024-10-18 14:38 ` Miguel Ojeda
2024-10-18 14:21 ` Andrew Lunn
2024-10-16 3:52 ` [PATCH net-next v3 8/8] net: phy: qt2025: Wait until PHY becomes ready FUJITA Tomonori
2024-10-16 12:00 ` Alice Ryhl
2024-10-18 14:26 ` [PATCH net-next v3 0/8] rust: Add IO polling Andrew Lunn
2024-10-23 4:01 ` FUJITA Tomonori
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