| 131,7 → 131,7 |
|---|
| continue; |
| } |
| |
| /* avoid deadlock with relink_rq */ |
| /* avoid deadlock with relink_rq() */ |
| if (!spinlock_trylock(&CPU->lock)) { |
| /* |
| * Unlock r and try again. |
| 446,7 → 446,6 |
|---|
| cpu_t *cpu; |
| |
| cpu = &cpus[(i + k) % config.cpu_active]; |
| r = &cpu->rq[j]; |
| |
| /* |
| * Not interested in ourselves. |
| 453,9 → 452,10 |
|---|
| * Doesn't require interrupt disabling for kcpulb is X_WIRED. |
| */ |
| if (CPU == cpu) |
| continue; |
| continue; |
| |
| restart: pri = cpu_priority_high(); |
| r = &cpu->rq[j]; |
| spinlock_lock(&r->lock); |
| if (r->n == 0) { |
| spinlock_unlock(&r->lock); |
| 470,10 → 470,11 |
|---|
| /* |
| * We don't want to steal CPU-wired threads neither threads already stolen. |
| * The latter prevents threads from migrating between CPU's without ever being run. |
| * We don't want to steal threads whose FPU context is still in CPU |
| * We don't want to steal threads whose FPU context is still in CPU. |
| */ |
| spinlock_lock(&t->lock); |
| if ( (!(t->flags & (X_WIRED | X_STOLEN))) && (!(t->fpu_context_engaged)) ) { |
| |
| /* |
| * Remove t from r. |
| */ |