linux-kernel - Re: [PATCH v3 0/3] futex: Create set_robust

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Message-ID: <20241217203140.GH11133@noisy.programming.kicks-ass.net>
Date: Tue, 17 Dec 2024 21:31:40 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: André Almeida <andrealmeid@...lia.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
	Darren Hart <dvhart@...radead.org>,
	Davidlohr Bueso <dave@...olabs.net>, Arnd Bergmann <arnd@...db.de>,
	sonicadvance1@...il.com, linux-kernel@...r.kernel.org,
	kernel-dev@...lia.com, linux-api@...r.kernel.org,
	Nathan Chancellor <nathan@...nel.org>,
	Vinicius Peixoto <vpeixoto@...amp.dev>
Subject: Re: [PATCH v3 0/3] futex: Create set_robust_list2

On Tue, Dec 17, 2024 at 02:49:55PM -0300, André Almeida wrote:
> This patch adds a new robust_list() syscall. The current syscall
> can't be expanded to cover the following use case, so a new one is
> needed. This new syscall allows users to set multiple robust lists per
> process and to have either 32bit or 64bit pointers in the list.

Last time a whole list of short comings of the current robust scheme
were laid bare. I feel we should address all that if we're going to
create a new scheme.