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#ifdef __SMP__
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#ifdef __SMP__
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#include <arch/smp/atomic.h>
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#include <arch/smp/atomic.h>
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#endif
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#endif
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/** Clock routine
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/*
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 *
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 * Clock is called from an interrupt and is cpu_priority_high()'d.
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 * Clock routine executed from clock interrupt handler
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 * (assuming cpu_priority_high()). Runs expired timeouts
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 * and preemptive scheduling.
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 *
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 */
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 */
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void clock(void)
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void clock(void)
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{
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{
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    link_t *l;
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    link_t *l;
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    timeout_t *h;
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    timeout_t *h;