22 Jul
2004
22 Jul
'04
12:18 a.m.
* Nick Piggin <nickpiggin(a)yahoo.com.au> wrote:
What do you think about deferring softirqs just while
in critical
sections?
I'm not sure how well this works, and it is CONFIG_PREEMPT only but in
theory it should prevent unbounded softirqs while under locks without
taking the performance hit of doing the context switch.
i dont think this is sufficient. A high-prio RT task might be performing
something that is important to it but isnt in any critical section. This
includes userspace processing. We dont want to delay it with softirqs.
Ingo