linux-kernel - Re: [PATCH v8 00/15] futex: Add support task local hash maps.

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Message-ID: <20250221160043.02H2_t3P@linutronix.de>
Date: Fri, 21 Feb 2025 17:00:43 +0100
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Peter Zijlstra <peterz@...radead.org>
Cc: linux-kernel@...r.kernel.org,
	André Almeida <andrealmeid@...lia.com>,
	Darren Hart <dvhart@...radead.org>,
	Davidlohr Bueso <dave@...olabs.net>, Ingo Molnar <mingo@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Waiman Long <longman@...hat.com>
Subject: Re: [PATCH v8 00/15] futex: Add support task local hash maps.

On 2025-02-20 16:12:06 [+0100], Peter Zijlstra wrote:
> I've split up the patch a little and stuck them here:
> 
>   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/log/?h=futex/scope 

futex_wait_setup() has an unused task argument (current is always used).

You solved the thing in lock_pi, I mentioned, by throwing in a
no_free_ptr() in the middle. Well that works, I assumed we wanted to
close the context somehow.

This should work. Let me zap that last argument in futex_wait_setup()
(confidently assuming I won't need it) and then rebase what I got so far
on top.

Sebastian