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Loops per jiffy broken for SMP cores?

DISCUSSION Saravana Kannan 1 participant 1 message Apr 21, 2010

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Hi,

This is the first time I'm mailing LAKML, so please excuse me if I do something silly.

I looked at arch/arm/lib/delay.S and it looks like __udelay and __const_udelay won't work correctly for SMP cores. The code just uses the loops_per_jiffy variable instead of the per-CPU loops per jiffy data.

Is anyone already working on a fix for that? If not, I can fix it up in a way that's hopefully palatable to the community.

Thanks,
Saravana