SMP IRQ Affinity in L4android

li94575 li94575 at ...176...
Mon Nov 9 13:32:05 CET 2015

Hi, everyone
I want to move some interrupts to specified cpu core, but I encountered some difficulties. 
When I try to write to "/proc/irq/*/smp_affinity" with cpu bitmask, it will call the interface l4lx_irq_dev_set_affinity(), which locates in "pots-foc/src/lib/l4lx/". And I can see the printed log "switched irq * to cpu* ". However, in fact, it doesnot work, the irq is still staying on previous cpu core ( seeing "/proc/interrupts") .
Please tell me how can I do, thank you so much!
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