From: Frederic Weisbecker <frederic@kernel.org>
To: Anna-Maria Behnsen <anna-maria@linutronix.de>
Cc: linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
John Stultz <jstultz@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Eric Dumazet <edumazet@google.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
Arjan van de Ven <arjan@infradead.org>,
"Paul E . McKenney" <paulmck@kernel.org>,
Rik van Riel <riel@surriel.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sebastian Siewior <bigeasy@linutronix.de>,
Giovanni Gherdovich <ggherdovich@suse.cz>,
Lukasz Luba <lukasz.luba@arm.com>,
"Gautham R . Shenoy" <gautham.shenoy@amd.com>,
Srinivas Pandruvada <srinivas.pandruvada@intel.com>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Christian Loehle <christian.loehle@arm.com>
Subject: Re: [PATCH v11 13/20] timers: Add get next timer interrupt functionality for remote CPUs
Date: Wed, 21 Feb 2024 21:50:26 +0100 [thread overview]
Message-ID: <ZdZiEmhFAdUZcgMK@pavilion.home> (raw)
In-Reply-To: <20240221090548.36600-14-anna-maria@linutronix.de>
Le Wed, Feb 21, 2024 at 10:05:41AM +0100, Anna-Maria Behnsen a écrit :
> To prepare for the conversion of the NOHZ timer placement to a pull at
> expiry time model it's required to have functionality available getting the
> next timer interrupt on a remote CPU.
>
> Locking of the timer bases and getting the information for the next timer
> interrupt functionality is split into separate functions. This is required
> to be compliant with lock ordering when the new model is in place.
>
> Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
next prev parent reply other threads:[~2024-02-21 20:50 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-21 9:05 [PATCH v11 00/20] timers: Move from a push remote at enqueue to a pull at expiry model Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 01/20] timers: Restructure get_next_timer_interrupt() Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 02/20] timers: Split out get next timer interrupt Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 03/20] timers: Move marking timer bases idle into tick_nohz_stop_tick() Anna-Maria Behnsen
2024-02-21 20:36 ` Frederic Weisbecker
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 04/20] timers: Optimization for timer_base_try_to_set_idle() Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 05/20] timers: Introduce add_timer() variants which modify timer flags Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 06/20] workqueue: Use global variant for add_timer() Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 07/20] timers: add_timer_on(): Make sure TIMER_PINNED flag is set Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] timers: Make sure TIMER_PINNED flag is set in add_timer_on() tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 08/20] timers: Ease code in run_local_timers() Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] timers: Simplify " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 09/20] timers: Split next timer interrupt logic Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 10/20] timers: Keep the pinned timers separate from the others Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 11/20] timers: Retrieve next expiry of pinned/non-pinned timers separately Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 12/20] timers: Split out "get next timer interrupt" functionality Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 13/20] timers: Add get next timer interrupt functionality for remote CPUs Anna-Maria Behnsen
2024-02-21 20:50 ` Frederic Weisbecker [this message]
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 14/20] timers: Restructure internal locking Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Richard Cochran (linutronix GmbH)
2024-02-21 9:05 ` [PATCH v11 15/20] timers: Check if timers base is handled already Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 16/20] tick/sched: Split out jiffies update helper function Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Richard Cochran (linutronix GmbH)
2024-02-21 9:05 ` [PATCH v11 17/20] timers: Introduce function to check timer base is_idle flag Anna-Maria Behnsen
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 18/20] timers: Implement the hierarchical pull model Anna-Maria Behnsen
2024-02-21 10:37 ` [PATCH v11a] " Anna-Maria Behnsen
2024-02-21 22:45 ` [PATCH v11 18/20] " Frederic Weisbecker
2024-02-22 8:17 ` Anna-Maria Behnsen
2024-02-22 10:25 ` Frederic Weisbecker
2024-02-22 10:37 ` [PATCH v11b " Anna-Maria Behnsen
2024-02-22 10:50 ` Frederic Weisbecker
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 19/20] timer_migration: Add tracepoints Anna-Maria Behnsen
2024-02-21 22:46 ` Frederic Weisbecker
2024-02-21 23:17 ` Steven Rostedt
2024-02-22 10:34 ` [PATCH v11a " Anna-Maria Behnsen
2024-02-22 14:59 ` Steven Rostedt
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-21 9:05 ` [PATCH v11 20/20] timers: Always queue timers on the local CPU Anna-Maria Behnsen
2024-02-21 22:57 ` Frederic Weisbecker
2024-02-22 17:12 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2024-02-22 13:33 ` [PATCH] timers/timer_migration: Fix memory barrier comment Anna-Maria Behnsen
2024-02-22 13:44 ` Frederic Weisbecker
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