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- Rather than repeating the same preemption code everywhere call the scheduler

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specific sched_preempt() routine.
This commit is contained in:
Jeff Roberson 2008-03-10 01:32:48 +00:00
parent ff256d9c47
commit 32c9d3a767
3 changed files with 4 additions and 24 deletions
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11
sys/amd64/amd64/mp_machdep.c
View File

@ -950,15 +950,8 @@ ipi_bitmap_handler(struct trapframe frame)
ipi_bitmap = atomic_readandclear_int(&cpu_ipi_pending[cpu]);
if (ipi_bitmap & (1 << IPI_PREEMPT)) {
struct thread *running_thread = curthread;
thread_lock(running_thread);
if (running_thread->td_critnest > 1)
running_thread->td_owepreempt = 1;
else
mi_switch(SW_INVOL | SW_PREEMPT, NULL);
thread_unlock(running_thread);
}
if (ipi_bitmap & (1 << IPI_PREEMPT))
sched_preempt(curthread);
/* Nothing to do for AST */
}

8
sys/i386/i386/mp_machdep.c
View File

@ -1132,16 +1132,10 @@ ipi_bitmap_handler(struct trapframe frame)
ipi_bitmap = atomic_readandclear_int(&cpu_ipi_pending[cpu]);
if (ipi_bitmap & (1 << IPI_PREEMPT)) {
struct thread *running_thread = curthread;
#ifdef COUNT_IPIS
(*ipi_preempt_counts[cpu])++;
#endif
thread_lock(running_thread);
if (running_thread->td_critnest > 1)
running_thread->td_owepreempt = 1;
else
mi_switch(SW_INVOL | SW_PREEMPT, NULL);
thread_unlock(running_thread);
sched_preempt(curthread);
}
if (ipi_bitmap & (1 << IPI_AST)) {

9
sys/sun4v/sun4v/mp_machdep.c
View File

@ -461,14 +461,7 @@ cpu_ipi_stop(struct trapframe *tf)
void
cpu_ipi_preempt(struct trapframe *tf)
{
struct thread *running_thread = curthread;
thread_lock(running_thread);
if (running_thread->td_critnest > 1)
running_thread->td_owepreempt = 1;
else
mi_switch(SW_INVOL | SW_PREEMPT, NULL);
thread_unlock(running_thread);
sched_preempt(curthread);
}
void