Re: [patch 0/2] Run interrupt handlers always with interrupts disabled

David Miller
2010-03-26T03:33:53Z

From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 26 Mar 2010 00:06:44 -0000

> The following patch series removes the IRQF_DISABLED functionality
> from the core interrupt code and runs all interrupt handlers with
> interrupts disabled.
>
> IRQF_DISABLED is kept as a define and scheduled for feature removal.
>
> I booted and stressed that patches w/o any obvious fallout on more
> than 20 different systems in my arsenal of test machines which
> includes various embedded non x86 systems.
>
> To debug eventual latency issues we (admittedly I talked acme into
> looking at that) want to extend perf with a top like tool to monitor
> the maximum runtime of interrupt handlers with the already existing
> tracepoints.

Acked-by: David S. Miller <davem@davemloft.net>