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Rev 2089 Rev 2183
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#include <func.h>
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#include <func.h>
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#include <cpu.h>
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#include <cpu.h>
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#include <arch/asm.h>
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#include <arch/asm.h>
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#include <arch.h>
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#include <arch.h>
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-
 
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/** Initialize timeouts
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/** Initialize timeouts
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 *
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 *
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 * Initialize kernel timeouts.
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 * Initialize kernel timeouts.
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 *
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 *
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 */
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 */
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bool timeout_unregister(timeout_t *t)
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bool timeout_unregister(timeout_t *t)
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{
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{
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    timeout_t *hlp;
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    timeout_t *hlp;
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    link_t *l;
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    link_t *l;
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    ipl_t ipl;
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    ipl_t ipl;
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    DEADLOCK_PROBE_INIT(p_tolock);
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grab_locks:
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grab_locks:
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    ipl = interrupts_disable();
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    ipl = interrupts_disable();
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    spinlock_lock(&t->lock);
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    spinlock_lock(&t->lock);
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    if (!t->cpu) {
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    if (!t->cpu) {
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        interrupts_restore(ipl);
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        interrupts_restore(ipl);
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        return false;
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        return false;
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    }
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    }
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    if (!spinlock_trylock(&t->cpu->timeoutlock)) {
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    if (!spinlock_trylock(&t->cpu->timeoutlock)) {
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        spinlock_unlock(&t->lock);
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        spinlock_unlock(&t->lock);
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        interrupts_restore(ipl);       
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        interrupts_restore(ipl);
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        DEADLOCK_PROBE(p_tolock, DEADLOCK_THRESHOLD);
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        goto grab_locks;
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        goto grab_locks;
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    }
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    }
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    /*
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    /*
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     * Now we know for sure that t hasn't been activated yet
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     * Now we know for sure that t hasn't been activated yet