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cpu: Replace qemu_for_each_cpu()

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It was introduced to loop over CPUs from target-independent code, but
since commit 182735efaf target-independent
CPUState is used.

A loop can be considered more efficient than function calls in a loop,
and CPU_FOREACH() hides implementation details just as well, so use that
instead.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Andreas Färber
2013-07-07 19:50:23 +02:00
parent bdc44640cb
commit 38fcbd3f08
6 changed files with 27 additions and 63 deletions
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11
arch_init.c
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@ -1196,15 +1196,14 @@ static void mig_sleep_cpu(void *opq)
much time in the VM. The migration thread will try to catchup.
Workload will experience a performance drop.
*/
static void mig_throttle_cpu_down(CPUState *cpu, void *data)
{
async_run_on_cpu(cpu, mig_sleep_cpu, NULL);
}
static void mig_throttle_guest_down(void)
{
CPUState *cpu;
qemu_mutex_lock_iothread();
qemu_for_each_cpu(mig_throttle_cpu_down, NULL);
CPU_FOREACH(cpu) {
async_run_on_cpu(cpu, mig_sleep_cpu, NULL);
}
qemu_mutex_unlock_iothread();
}