Re: [patch 12/14] PCI: hv: Use tasklet_disable_in_atomic()

Wei Liu
2021-03-10T11:35:29Z

On Tue, Mar 09, 2021 at 09:42:15AM +0100, Thomas Gleixner wrote:
> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>
> The hv_compose_msi_msg() callback in irq_chip::irq_compose_msi_msg is
> invoked via irq_chip_compose_msi_msg(), which itself is always invoked from
> atomic contexts from the guts of the interrupt core code.
>
> There is no way to change this w/o rewriting the whole driver, so use
> tasklet_disable_in_atomic() which allows to make tasklet_disable()
> sleepable once the remaining atomic users are addressed.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Acked-by: Wei Liu <wei.liu@kernel.org>