From: Thomas Gleixner <tglx@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: arnd@arndb.de, anna-maria@linutronix.de, frederic@kernel.org,
peterz@infradead.org, luto@kernel.org, mingo@redhat.com,
juri.lelli@redhat.com, vincent.guittot@linaro.org,
dietmar.eggemann@arm.com, rostedt@goodmis.org,
bsegall@google.com, mgorman@suse.de, vschneid@redhat.com,
linux-kernel@vger.kernel.org, oliver.sang@intel.com
Subject: Re: [PATCH v2 4/6] hrtimer: Re-arrange hrtimer_interrupt()
Date: Mon, 02 Feb 2026 15:05:14 +0100 [thread overview]
Message-ID: <87bji7fdgl.ffs@tglx> (raw)
In-Reply-To: <20260121162507.877520597@infradead.org>
On Wed, Jan 21 2026 at 17:20, Peter Zijlstra wrote:
> Rework hrtimer_interrupt() such that reprogramming is split out into
> an independent function at the end of the interrupt.
>
> This prepares for reprogramming getting delayed beyond the end of
> hrtimer_interrupt().
>
> Notably, this changes the hang handling to always wait 100ms instead
> of trying to keep it proportional to the actual delay. This simplifies
> the state, also this really shouldn't be happening.
Indeed.
> /*
> + * Very similar to hrtimer_force_reprogram(), except it deals with
> + * in_hrirq and hang_detected.
in_hrtirq
Reviewed-by: Thomas Gleixner <tglx@kernel.org>
next prev parent reply other threads:[~2026-02-02 14:05 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-21 16:20 [PATCH v2 0/6] hrtimer/sched: Improve hrtick Peter Zijlstra
2026-01-21 16:20 ` [PATCH v2 1/6] sched/eevdf: Fix HRTICK duration Peter Zijlstra
2026-01-22 10:53 ` Juri Lelli
2026-02-05 8:38 ` Peter Zijlstra
2026-01-21 16:20 ` [PATCH v2 2/6] hrtimer: Optimize __hrtimer_start_range_ns() Peter Zijlstra
2026-01-22 11:00 ` Juri Lelli
2026-02-02 12:28 ` Thomas Gleixner
2026-01-21 16:20 ` [PATCH v2 3/6] hrtimer,sched: Add fuzzy hrtimer mode for HRTICK Peter Zijlstra
2026-01-22 13:12 ` Juri Lelli
2026-01-23 20:04 ` Steven Rostedt
2026-02-02 14:02 ` Thomas Gleixner
2026-01-21 16:20 ` [PATCH v2 4/6] hrtimer: Re-arrange hrtimer_interrupt() Peter Zijlstra
2026-02-02 14:05 ` Thomas Gleixner [this message]
2026-01-21 16:20 ` [PATCH v2 5/6] entry,hrtimer: Push reprogramming timers into the interrupt return path Peter Zijlstra
2026-01-23 20:08 ` Steven Rostedt
2026-01-23 21:04 ` Peter Zijlstra
2026-02-02 14:37 ` Thomas Gleixner
2026-02-02 16:33 ` Peter Zijlstra
2026-02-02 23:28 ` Thomas Gleixner
2026-02-03 8:14 ` Thomas Gleixner
2026-02-04 13:58 ` Peter Zijlstra
2026-01-21 16:20 ` [PATCH v2 6/6] sched: Default enable HRTICK Peter Zijlstra
2026-01-21 22:24 ` Phil Auld
2026-01-22 11:40 ` Peter Zijlstra
2026-01-22 12:31 ` Phil Auld
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87bji7fdgl.ffs@tglx \
--to=tglx@linutronix.de \
--cc=anna-maria@linutronix.de \
--cc=arnd@arndb.de \
--cc=bsegall@google.com \
--cc=dietmar.eggemann@arm.com \
--cc=frederic@kernel.org \
--cc=juri.lelli@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=oliver.sang@intel.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=vincent.guittot@linaro.org \
--cc=vschneid@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.