[libvirt] [PATCH 2/2] cpuset: removing original sched_setaffinity path
Daniel P. Berrange
berrange at redhat.com
Thu Jun 30 09:33:15 UTC 2011
On Thu, Jun 30, 2011 at 11:16:27AM +0800, Gui Jianfeng wrote:
> Since we have controlled Guest cpu affinity by using cpuset cgroup.
> Get rid of this part.
>
> Signed-off-by: Gui Jianfeng <guijianfeng at cn.fujitsu.com>
> ---
> src/qemu/qemu_process.c | 6 ------
> 1 files changed, 0 insertions(+), 6 deletions(-)
>
> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> index 88a31a3..079666f 100644
> --- a/src/qemu/qemu_process.c
> +++ b/src/qemu/qemu_process.c
> @@ -2056,12 +2056,6 @@ static int qemuProcessHook(void *data)
> if (qemuAddToCgroup(h->driver, h->vm->def) < 0)
> goto cleanup;
>
> - /* This must be done after cgroup placement to avoid resetting CPU
> - * affinity */
> - VIR_DEBUG("Setup CPU affinity");
> - if (qemuProcessInitCpuAffinity(h->vm) < 0)
> - goto cleanup;
> -
> if (qemuProcessInitNumaMemoryPolicy(h->vm) < 0)
> return -1;
This will cause a regresion for anyone who hasn't got Cgroups
support in their kernel, or who has not mounted the cpuset
controller.
I don't believe there should be any harm to just leaving this
in place.
Daniel
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