The problem here is that there are some values that kernel accepts, but
does not set them, for example 18446744073709551615 which acts the same
way as zero. Let's do the same thing we do with other tuning options
and re-read them right after they are set in order to keep our internal
structures up-to-date.
Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
---
src/lxc/lxc_cgroup.c | 20 +++++++++++++++-----
src/lxc/lxc_driver.c | 25 ++++++++++++++++++++-----
2 files changed, 35 insertions(+), 10 deletions(-)
diff --git a/src/lxc/lxc_cgroup.c b/src/lxc/lxc_cgroup.c
index 507d56759f6e..0d5a91cfcb92 100644
--- a/src/lxc/lxc_cgroup.c
+++ b/src/lxc/lxc_cgroup.c
@@ -117,27 +117,37 @@ static int virLXCCgroupSetupBlkioTune(virDomainDefPtr def,
if (dev->weight &&
(virCgroupSetBlkioDeviceWeight(cgroup, dev->path,
- dev->weight) < 0))
+ dev->weight) < 0 ||
+ virCgroupGetBlkioDeviceWeight(cgroup, dev->path,
+ &dev->weight) < 0))
return -1;
if (dev->riops &&
(virCgroupSetBlkioDeviceReadIops(cgroup, dev->path,
- dev->riops) < 0))
+ dev->riops) < 0 ||
+ virCgroupGetBlkioDeviceReadIops(cgroup, dev->path,
+ &dev->riops) < 0))
return -1;
if (dev->wiops &&
(virCgroupSetBlkioDeviceWriteIops(cgroup, dev->path,
- dev->wiops) < 0))
+ dev->wiops) < 0 ||
+ virCgroupGetBlkioDeviceWriteIops(cgroup, dev->path,
+ &dev->wiops) < 0))
return -1;
if (dev->rbps &&
(virCgroupSetBlkioDeviceReadBps(cgroup, dev->path,
- dev->rbps) < 0))
+ dev->rbps) < 0 ||
+ virCgroupGetBlkioDeviceReadBps(cgroup, dev->path,
+ &dev->rbps) < 0))
return -1;
if (dev->wbps &&
(virCgroupSetBlkioDeviceWriteBps(cgroup, dev->path,
- dev->wbps) < 0))
+ dev->wbps) < 0 ||
+ virCgroupGetBlkioDeviceWriteBps(cgroup, dev->path,
+ &dev->wbps) < 0))
return -1;
}
}
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 81bb71186cfc..f734d251a23b 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -2603,7 +2603,10 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
for (j = 0; j < ndevices; j++) {
if (virCgroupSetBlkioDeviceWeight(priv->cgroup,
devices[j].path,
- devices[j].weight) < 0) {
+ devices[j].weight) < 0 ||
+ virCgroupGetBlkioDeviceWeight(priv->cgroup,
+ devices[j].path,
+ &devices[j].weight) < 0) {
ret = -1;
break;
}
@@ -2612,7 +2615,10 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
for (j = 0; j < ndevices; j++) {
if (virCgroupSetBlkioDeviceReadIops(priv->cgroup,
devices[j].path,
- devices[j].riops) < 0) {
+ devices[j].riops) < 0 ||
+ virCgroupGetBlkioDeviceReadIops(priv->cgroup,
+ devices[j].path,
+ &devices[j].riops) < 0) {
ret = -1;
break;
}
@@ -2621,7 +2627,10 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
for (j = 0; j < ndevices; j++) {
if (virCgroupSetBlkioDeviceWriteIops(priv->cgroup,
devices[j].path,
- devices[j].wiops) < 0) {
+ devices[j].wiops) < 0 ||
+ virCgroupGetBlkioDeviceWriteIops(priv->cgroup,
+ devices[j].path,
+ &devices[j].wiops) < 0) {
ret = -1;
break;
}
@@ -2630,7 +2639,10 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
for (j = 0; j < ndevices; j++) {
if (virCgroupSetBlkioDeviceReadBps(priv->cgroup,
devices[j].path,
- devices[j].rbps) < 0) {
+ devices[j].rbps) < 0 ||
+ virCgroupGetBlkioDeviceReadBps(priv->cgroup,
+ devices[j].path,
+ &devices[j].rbps) < 0) {
ret = -1;
break;
}
@@ -2639,7 +2651,10 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
for (j = 0; j < ndevices; j++) {
if (virCgroupSetBlkioDeviceWriteBps(priv->cgroup,
devices[j].path,
- devices[j].wbps) < 0) {
+ devices[j].wbps) < 0 ||
+ virCgroupGetBlkioDeviceWriteBps(priv->cgroup,
+ devices[j].path,
+ &devices[j].wbps) < 0) {
ret = -1;
break;
}
--
2.5.0
--
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