Re: [PATCH -rt] ide: fix interrupts processing issue with preempt-able hardirqs

[Ingo Molnar <mingo@xxxxxxx>]

* Anton Vorontsov <avorontsov@xxxxxxxxxxxxx> wrote:

> IDE interrupt handler relies on the fact that, if necessary, hardirqs 
> will re-trigger on ISR exit. With fully preemtable IRQs this seems to 
> be not true, since if hardirq thread is currently running, and the 
> same IRQ raised again, then this IRQ will be simply lost.

actually no, that should not happen - if -rt loses an IRQ then something 
broke in the threaded IRQ code. It's supposed to be a drop-in, 
compatible IRQ flow with no driver changes needed.

( also, please do not Cc: mainline maintainers to RFC -rt patches, let
  the -rt maintainers sort out the need for any patch propagation - once 
  the patches are sufficiently cooked. Thanks. )

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/