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Re: 2.6.11-rc1-mm1
Christoph Hellwig wrote:
> the lockless mode is really just loops around cmpxchg. It's spinlocks
> reinvented poorly.
I beg to differ. You have to use different spinlocks depending on
where you are:
- serving user-space
- bh-derivatives
- irq
lockless is the same primitive regardless of your current state,
it's not the same as spinlocks.
Karim
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Author, Speaker, Developer, Consultant
Pushing Embedded and Real-Time Linux Systems Beyond the Limits
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