Re: preempt_disable() as synchronization tool

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http://lxr.linux.no/#linux+v2.6.31/Documentation/preempt-locking.txt


2009/10/9 Daniel Rodrick <daniel.rodrick@xxxxxxxxx>:
> Hi List,
>
> I have few queries related to preempt_disable() and would appreciate
> any answers to it.
>
> Firstly, Does preempt_disable() disable the preemption on all the
> processors or on just the local processor?
>
> Secondly, a preempt_disable() a suffifient synchronization technique
> to guard a data that is shared only among process context code on a
> Uni-processor? And on SMP?
>
> Lastly, is it allowable to schedule / sleep immediately after a call
> to preempt_disable()?
>
> Thanks & Best Regards,
>
> Dan
>
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-- 
Best Regards
Lin
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