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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /SPARTAN/trunk/src @ 221

  → /SPARTAN/trunk/src @ 223

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 221 → Rev 223

/SPARTAN/trunk/src/synch/spinlock.c
31,6 → 31,7
#include <arch/atomic.h>
#include <arch/barrier.h>
#include <synch/spinlock.h>
#include <preemption.h>
#include <print.h>
#ifdef __SMP__
46,6 → 47,7
int i = 0;
__address caller = ((__u32 *) &sl)[-1];
preemption_disable();
while (test_and_set(&sl->val)) {
if (i++ > 300000) {
printf("cpu%d: looping on spinlock %X, caller=%X\n", CPU->id, sl, caller);
58,6 → 60,8
#else
void spinlock_lock(spinlock_t *sl)
{
preemption_disable();
/*
* Each architecture has its own efficient/recommended
* implementation of spinlock.
71,8 → 75,12
{
int rc;
preemption_disable();
rc = !test_and_set(&sl->val);
CS_ENTER_BARRIER();
if (!rc)
preemption_enable();
return rc;
}
81,6 → 89,7
{
CS_LEAVE_BARRIER();
sl->val = 0;
preemption_enable();
}
#endif