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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2021-03-09 11:42:15 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-03-17 18:34:03 +0300 |
| commit | be4017cea0aec6369275df7eafbb09682f810e7e (patch) | |
| tree | 9a94f354785dc3946fce0283cacfc9dca04a7614 /drivers/pci/controller/pci-hyperv.c | |
| parent | 405698ca359a23b1ef1a502ef2bdc4597dc6da36 (diff) | |
| download | linux-be4017cea0aec6369275df7eafbb09682f810e7e.tar.xz | |
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@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210309084242.516519290@linutronix.de
Diffstat (limited to 'drivers/pci/controller/pci-hyperv.c')
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 27a17a1e4a7c..a313708bcf75 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 |