[libvirt] [PATCH] qemu: fix not update weight in def after success

John Ferlan jferlan at redhat.com
Tue Aug 18 17:32:24 UTC 2015



On 08/12/2015 09:53 PM, Luyao Huang wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1253107
> 
> Update the weight in vm def to fix this.
> 
> Signed-off-by: Luyao Huang <lhuang at redhat.com>
> ---
>  src/qemu/qemu_driver.c | 2 ++
>  1 file changed, 2 insertions(+)
> 

Considering the series I recently ACK from Martin - shouldn't this to
make a virCgroupGetBlkioWeight type call to ensure you get/save whatever
the kernel saved?

John

See:

http://www.redhat.com/archives/libvir-list/2015-August/msg00065.html
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 7a984a8..0b984dc 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -9170,6 +9170,8 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
>              if (STREQ(param->field, VIR_DOMAIN_BLKIO_WEIGHT)) {
>                  if (virCgroupSetBlkioWeight(priv->cgroup, param->value.ui) < 0)
>                      ret = -1;
> +                else
> +                    def->blkio.weight = param->value.ui;
>              } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) ||
>                         STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) ||
>                         STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS) ||
> 




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