Is the sparc linux support kernel preempt?

[lion <yjfpb04@xxxxxxxxx>]

Hi, All
        I want to know whether the sparc linux supports kernel preempt?
I have looked at the source code, and don't think so.
       May be we can try to do it？ or why your guys didn't implement it？
    Thanks all.
       Sorry for posting it again, because of the uncorrect name.
Cherrs
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