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From: Jens Axboe <axboe@kernel.dk>
To: Thomas Gleixner <tglx@linutronix.de>, Oleg Nesterov <oleg@redhat.com>
Cc: linux-kernel@vger.kernel.org, io-uring@vger.kernel.org,
	peterz@infradead.org
Subject: Re: [PATCH 3/4] kernel: add support for TIF_NOTIFY_SIGNAL
Date: Tue, 13 Oct 2020 17:54:52 -0600	[thread overview]
Message-ID: <bdd8ddad-5433-8f54-fbec-20a5f6f8bec2@kernel.dk> (raw)
In-Reply-To: <875z7dd70p.fsf@nanos.tec.linutronix.de>

On 10/13/20 5:45 PM, Thomas Gleixner wrote:
> On Fri, Oct 09 2020 at 09:13, Jens Axboe wrote:
>>> Hmm. I just noticed that only x86 uses arch_do_signal(), so perhaps you can
>>> add this change to this patch right now? Up to you.
>>
>> Sure, we can do that. Incremental on top then looks like the below. I don't
>> feel that strongly about it, but it is nice to avoid re-testing the
>> flags.
> 
> Yes it makes sense. Can you please make the signature change of
> arch_do_signal() in a preparatory patch and only make use of it when you
> add the TIF bit to x86?

Ala:

https://git.kernel.dk/cgit/linux-block/commit/?h=tif-task_work&id=6a150da501727f6bdca4786a02c0a57160e13079

with the pre generic patch being:

https://git.kernel.dk/cgit/linux-block/commit/?h=tif-task_work&id=add2e252ae8481350239c3cb893aed490c05c397

-- 
Jens Axboe


  reply	other threads:[~2020-10-14  9:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08 15:27 [PATCHSET v4] Add " Jens Axboe
2020-10-08 15:27 ` [PATCH 1/4] tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume() Jens Axboe
2020-10-13 23:35   ` Thomas Gleixner
2020-10-14  1:13     ` Jens Axboe
2020-10-08 15:27 ` [PATCH 2/4] kernel: add task_sigpending() helper Jens Axboe
2020-10-13 23:36   ` Thomas Gleixner
2020-10-08 15:27 ` [PATCH 3/4] kernel: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-09 14:43   ` Oleg Nesterov
2020-10-09 15:13     ` Jens Axboe
2020-10-13 23:45       ` Thomas Gleixner
2020-10-13 23:54         ` Jens Axboe [this message]
2020-10-13 23:42   ` Thomas Gleixner
2020-10-13 23:45     ` Jens Axboe
2020-10-08 15:27 ` [PATCH 4/4] task_work: use TIF_NOTIFY_SIGNAL if available Jens Axboe
2020-10-13 23:50   ` Thomas Gleixner
2020-10-13 23:55     ` Jens Axboe
2020-10-09 14:30 ` [PATCHSET v4] Add support for TIF_NOTIFY_SIGNAL Oleg Nesterov
2020-10-09 15:16   ` Jens Axboe

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