From: Anna-Maria Behnsen <anna-maria@linutronix.de>
To: Sebastian Siewior <bigeasy@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>,
Frederic Weisbecker <frederic@kernel.org>,
Rik van Riel <riel@surriel.com>,
Steven Rostedt <rostedt@goodmis.org>,
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>
Subject: Re: [PATCH v9 25/32] timers: Add get next timer interrupt functionality for remote CPUs
Date: Thu, 07 Dec 2023 11:27:12 +0100 [thread overview]
Message-ID: <87cyvi8fzz.fsf@somnus> (raw)
In-Reply-To: <20231206104409.mcNIiNBs@linutronix.de>
Sebastian Siewior <bigeasy@linutronix.de> writes:
> On 2023-12-01 10:26:47 [+0100], Anna-Maria Behnsen wrote:
>> 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>
>
> Please fold the hunk below, it keeps sparse happy.
Thanks, I will do!
Anna-Maria
next prev parent reply other threads:[~2023-12-07 10:27 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-01 9:26 [PATCH v9 00/32] timers: Move from a push remote at enqueue to a pull at expiry model Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 01/32] tick-sched: Fix function names in comments Anna-Maria Behnsen
2023-12-20 13:09 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 02/32] tick/sched: Cleanup confusing variables Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 03/32] tick-sched: Warn when next tick seems to be in the past Anna-Maria Behnsen
2023-12-20 13:27 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 04/32] tracing/timers: Enhance timer_start tracepoint Anna-Maria Behnsen
2023-12-20 13:35 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 05/32] tracing/timers: Add tracepoint for tracking timer base is_idle flag Anna-Maria Behnsen
2023-12-20 13:43 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 06/32] timers: Do not IPI for deferrable timers Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 07/32] timers: Move store of next event into __next_timer_interrupt() Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 08/32] timers: Clarify check in forward_timer_base() Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 09/32] timers: Split out forward timer base functionality Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 10/32] timers: Use already existing function for forwarding timer base Anna-Maria Behnsen
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 11/32] timers: Rework idle logic Anna-Maria Behnsen
2023-12-20 14:00 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2023-12-01 9:26 ` [PATCH v9 12/32] timers: Fix nextevt calculation when no timers are pending Anna-Maria Behnsen
2023-12-04 16:03 ` Sebastian Siewior
2023-12-05 11:53 ` Anna-Maria Behnsen
2023-12-10 0:35 ` Frederic Weisbecker
2023-12-12 13:21 ` Anna-Maria Behnsen
2023-12-12 13:37 ` Frederic Weisbecker
2023-12-20 14:49 ` Frederic Weisbecker
2023-12-20 15:59 ` [tip: timers/core] " tip-bot2 for Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 13/32] timers: Restructure get_next_timer_interrupt() Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 14/32] timers: Split out get next timer interrupt Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 15/32] timers: Move marking timer bases idle into tick_nohz_stop_tick() Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 16/32] timers: Optimization for timer_base_try_to_set_idle() Anna-Maria Behnsen
2023-12-04 17:52 ` Sebastian Siewior
2023-12-05 12:05 ` Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 17/32] timers: Introduce add_timer() variants which modify timer flags Anna-Maria Behnsen
2023-12-05 18:28 ` Sebastian Siewior
2023-12-06 9:24 ` Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 18/32] workqueue: Use global variant for add_timer() Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 19/32] timers: add_timer_on(): Make sure TIMER_PINNED flag is set Anna-Maria Behnsen
2023-12-05 18:29 ` Sebastian Siewior
2023-12-06 9:57 ` Anna-Maria Behnsen
2023-12-06 10:26 ` Sebastian Siewior
2023-12-06 10:46 ` Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 20/32] timers: Ease code in run_local_timers() Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 21/32] timers: Split next timer interrupt logic Anna-Maria Behnsen
2023-12-05 18:29 ` Sebastian Siewior
2023-12-01 9:26 ` [PATCH v9 22/32] timers: Keep the pinned timers separate from the others Anna-Maria Behnsen
2023-12-05 21:11 ` Sebastian Siewior
2023-12-06 10:23 ` Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 23/32] timers: Retrieve next expiry of pinned/non-pinned timers separately Anna-Maria Behnsen
2023-12-06 9:47 ` Sebastian Siewior
2023-12-07 10:12 ` Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 24/32] timers: Split out "get next timer interrupt" functionality Anna-Maria Behnsen
2023-12-06 10:20 ` Sebastian Siewior
2023-12-01 9:26 ` [PATCH v9 25/32] timers: Add get next timer interrupt functionality for remote CPUs Anna-Maria Behnsen
2023-12-06 10:44 ` Sebastian Siewior
2023-12-07 10:27 ` Anna-Maria Behnsen [this message]
2023-12-01 9:26 ` [PATCH v9 26/32] timers: Restructure internal locking Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 27/32] timers: Check if timers base is handled already Anna-Maria Behnsen
2023-12-06 10:58 ` Sebastian Siewior
2023-12-01 9:26 ` [PATCH v9 28/32] tick/sched: Split out jiffies update helper function Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 29/32] timers: Introduce function to check timer base is_idle flag Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 30/32] timers: Implement the hierarchical pull model Anna-Maria Behnsen
2023-12-06 16:35 ` Sebastian Siewior
2023-12-08 9:01 ` Anna-Maria Behnsen
2023-12-07 18:09 ` Sebastian Siewior
2023-12-08 10:31 ` Anna-Maria Behnsen
2023-12-08 18:18 ` Sebastian Siewior
2023-12-11 18:04 ` Sebastian Siewior
2023-12-12 11:31 ` Anna-Maria Behnsen
2023-12-12 11:43 ` Anna-Maria Behnsen
2023-12-12 15:59 ` Sebastian Siewior
2023-12-12 12:14 ` Sebastian Siewior
2023-12-12 14:52 ` Anna-Maria Behnsen
2023-12-12 17:08 ` Sebastian Siewior
2023-12-01 9:26 ` [PATCH v9 31/32] timer_migration: Add tracepoints Anna-Maria Behnsen
2023-12-01 9:26 ` [PATCH v9 32/32] timers: Always queue timers on the local CPU Anna-Maria Behnsen
2023-12-07 12:11 ` [PATCH v9 00/32] timers: Move from a push remote at enqueue to a pull at expiry model Anna-Maria Behnsen
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