On Fri, Oct 20 2017 at 1:49:24 pm BST, Christoffer Dall <christoffer.dall@xxxxxxxxxx> wrote: > From: Christoffer Dall <cdall@xxxxxxxxxx> > > We are about to optimize our timer handling logic which involves > injecting irqs to the vgic directly from the irq handler. > > Unfortunately, the injection path can take any AP list lock and irq lock > and we must therefore make sure to use spin_lock_irqsave where ever > interrupts are enabled and we are taking any of those locks, to avoid > deadlocking between process context and the ISR. > > This changes a lot of the VGIC code, but The good news are that the > changes are mostly mechanical. > > Signed-off-by: Christoffer Dall <cdall@xxxxxxxxxx> Acked-by: Marc Zyngier <marc,zyngier@xxxxxxx> M. -- Jazz is not dead. It just smells funny.
