The following commit has been merged into the irq/core branch of tip: Commit-ID: be4017cea0aec6369275df7eafbb09682f810e7e Gitweb: https://git.kernel.org/tip/be4017cea0aec6369275df7eafbb09682f810e7e Author: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> AuthorDate: Tue, 09 Mar 2021 09:42:15 +01:00 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitterDate: Wed, 17 Mar 2021 16:34:03 +01:00 PCI: hv: Use tasklet_disable_in_atomic() 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@xxxxxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Acked-by: Wei Liu <wei.liu@xxxxxxxxxx> Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20210309084242.516519290@xxxxxxxxxxxxx --- drivers/pci/controller/pci-hyperv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 27a17a1..a313708 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -1458,7 +1458,7 @@ static void hv_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) * Prevents hv_pci_onchannelcallback() from running concurrently * in the tasklet. */ - tasklet_disable(&channel->callback_event); + tasklet_disable_in_atomic(&channel->callback_event); /* * Since this function is called with IRQ locks held, can't
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