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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 bf2788218a)
This commit is contained in:
Luyao Huang authored and Cole Robinson committed 2015-09-21 20:18:02 -04:00
1 parent 77fa00888f
commit 075f66e304
1 file changed
+2 -1
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src/qemu/qemu_driver.c
+2 -1
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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) ||