21 Jul
2004
21 Jul
'04
4:52 p.m.
On Wed, Jul 21, 2004 at 09:32:46PM +1000, Nick Piggin 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.
You're still running do_softirq() with preemption disabled, which is
almost as bad as doing it under a lock.
-Scott