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qemu: Update blkio.weight value after successful set

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1253107

Make a call virCgroupGetBlkioWeight to re-read blkio.weight right
after it is set in order to keep internal data up-to-date.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
(cherry picked from commit bf2788218ad29719467260aa4ecad6dc31c97046)
This commit is contained in:
Luyao Huang 2015-08-19 11:56:33 +08:00 committed by Cole Robinson
parent 77fa00888f
commit 075f66e304
1 changed files with 2 additions and 1 deletions
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3
src/qemu/qemu_driver.c
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@ -9185,7 +9185,8 @@ qemuDomainSetBlkioParameters(virDomainPtr dom,
virTypedParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_BLKIO_WEIGHT)) {
if (virCgroupSetBlkioWeight(priv->cgroup, param->value.ui) < 0)
if (virCgroupSetBlkioWeight(priv->cgroup, param->value.ui) < 0 ||
virCgroupGetBlkioWeight(priv->cgroup, &def->blkio.weight) < 0)
ret = -1;
} else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) ||
STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) ||