Re: [PATCH 3.18-rc3 v8 1/4] irqchip: gic: Make gic_raise_softirq() FIQ-safe

On Mon, 24 Nov 2014, Daniel Thompson wrote:

On 24/11/14 20:38, Thomas Gleixner wrote:

...

So while I cannot come up with a brilliant replacement, it would be really helpful documentation wise if you could do the following:

1. Create a patch which introduces irq_migration_lock as a raw spinlock and replaces the usage of irq_controller_lock in gic_raise_softirq() and gic_migrate_target() along with a proper explanation in the code and the changelog of course.

Replace irq_controller_lock or augment it with a new one?

Replace it in gic_raise_softirq() and add it to gic_migrate_target() as you did with the RW lock.

Thanks,

tglx