From: Thomas Gleixner <tglx@kernel.org>
To: "Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"André Almeida" <andrealmeid@igalia.com>
Cc: linux-kernel@vger.kernel.org, Carlos O'Donell <carlos@redhat.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Florian Weimer <fweimer@redhat.com>,
Rich Felker <dalias@aerifal.cx>,
Torvald Riegel <triegel@redhat.com>,
Darren Hart <dvhart@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Arnd Bergmann <arnd@arndb.de>,
"Liam R . Howlett" <Liam.Howlett@oracle.com>
Subject: Re: [RFC PATCH] futex: Introduce __vdso_robust_futex_unlock
Date: Mon, 16 Mar 2026 21:27:43 +0100 [thread overview]
Message-ID: <871phjplj4.ffs@tglx> (raw)
In-Reply-To: <a2c29bb7-d0af-4d5f-8858-ead460979cd9@efficios.com>
On Mon, Mar 16 2026 at 15:36, Mathieu Desnoyers wrote:
> On 2026-03-16 13:12, Thomas Gleixner wrote:
>> sys_exit() is different because there a task voluntarily exits and if
>> it does so between the unlock and the clearing of the op pointer,
>> then so be it. That'd be wilfull ignorance or malice and not any
>> different from the task doing the corruption itself in user space
>> right away.
>
> I'm not sure about this one. How about the two following scenario:
> A concurrent thread calls sys_exit concurrently with the vdso. Is this
> something we should handle or consider it "wilfull ignorance/malice" ?
I don't understand your question. What has the exit to do with the VDSO?
next prev parent reply other threads:[~2026-03-16 20:27 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-11 18:54 [RFC PATCH] futex: Introduce __vdso_robust_futex_unlock Mathieu Desnoyers
2026-03-11 20:11 ` Mathieu Desnoyers
2026-03-12 8:49 ` Florian Weimer
2026-03-12 13:13 ` Mathieu Desnoyers
2026-03-12 14:12 ` Florian Weimer
2026-03-12 14:14 ` André Almeida
2026-03-12 16:09 ` Mathieu Desnoyers
2026-03-12 13:46 ` André Almeida
2026-03-12 14:04 ` Mathieu Desnoyers
2026-03-12 18:40 ` Mathieu Desnoyers
2026-03-12 18:58 ` André Almeida
2026-03-12 19:10 ` Thomas Gleixner
2026-03-12 19:16 ` Mathieu Desnoyers
2026-03-13 8:20 ` Florian Weimer
2026-03-12 20:19 ` Thomas Gleixner
2026-03-12 21:28 ` Mathieu Desnoyers
2026-03-12 22:23 ` Thomas Gleixner
2026-03-12 22:52 ` Mathieu Desnoyers
2026-03-13 12:12 ` Sebastian Andrzej Siewior
2026-03-13 12:17 ` Mathieu Desnoyers
2026-03-13 13:29 ` Sebastian Andrzej Siewior
2026-03-13 13:35 ` Mathieu Desnoyers
2026-03-16 17:12 ` Thomas Gleixner
2026-03-16 19:36 ` Mathieu Desnoyers
2026-03-16 20:27 ` Thomas Gleixner [this message]
2026-03-16 21:01 ` Mathieu Desnoyers
2026-03-16 22:19 ` Thomas Gleixner
2026-03-16 22:30 ` Mathieu Desnoyers
2026-03-16 23:29 ` Thomas Gleixner
2026-03-20 18:13 ` Mathieu Desnoyers
2026-03-24 21:35 ` Thomas Gleixner
2026-03-25 14:12 ` Mathieu Desnoyers
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