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From: Thomas Gleixner <tglx@linutronix.de>
To: Jens Axboe <axboe@kernel.dk>,
	linux-kernel@vger.kernel.org, io-uring@vger.kernel.org
Cc: peterz@infradead.org, oleg@redhat.com, Jens Axboe <axboe@kernel.dk>
Subject: Re: [PATCH 2/4] kernel: add task_sigpending() helper
Date: Wed, 14 Oct 2020 01:36:14 +0200	[thread overview]
Message-ID: <87blh5d7gx.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20201008152752.218889-3-axboe@kernel.dk>

On Thu, Oct 08 2020 at 09:27, Jens Axboe wrote:
> This is in preparation for maintaining signal_pending() as the decider
> of whether or not a schedule() loop should be broken, or continue
> sleeping. This is different than the core signal use cases, where we
> really want to know if an actual signal is pending or not.
> task_sigpending() returns non-zero if TIF_SIGPENDING is set.
>
> Only core kernel use cases should care about the distinction between
> the two, make sure those use the task_sigpending() helper.
>
> Signed-off-by: Jens Axboe <axboe@kernel.dk>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

  reply	other threads:[~2020-10-13 23:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08 15:27 [PATCHSET v4] Add support for TIF_NOTIFY_SIGNAL 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 [this message]
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
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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