[libvirt] [PATCH] qemu: fix not update weight in def after success
https://bugzilla.redhat.com/show_bug.cgi?id=1253107 Update the weight in vm def to fix this. Signed-off-by: Luyao Huang <lhuang@redhat.com> --- src/qemu/qemu_driver.c | 2 ++ 1 file changed, 2 insertions(+) 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) || -- 1.8.3.1
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@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) ||
On 08/19/2015 01:32 AM, John Ferlan wrote:
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@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?
Indeed, it will be better to check the value again (blkio.weigh and blkio.weight_device range is [10, 1000] right now, so seems these 2 value won't hit the issue that was fixed by Martin), i will write a new version later. Thanks a lot for your review.
John
Luyao
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) ||
participants (3)
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John Ferlan -
lhuang -
Luyao Huang