Re: [libvirt] [PATCH 7/8] qemu: allow to setup throttle blkio cgroup through virsh

With this patch, user can setup throttle blkio cgroup through virsh for qemu domain. Signed-off-by: Guan Qiang <hzguanqiang(a)corp.netease.com&gt; Signed-off-by: Gao feng <gaofeng(a)cn.fujitsu.com&gt; --- src/qemu/qemu_driver.c | 425 ++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 386 insertions(+), 39 deletions(-)

- for (j = 0; j < ndevices; j++) { - if (virCgroupSetBlkioDeviceWeight(priv->cgroup, - devices[j].path, - devices[j].weight) < 0) { - ret = -1; - break; + + if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT)) { + for (j = 0; j < ndevices; j++) { + if (virCgroupSetBlkioDeviceWeight(priv->cgroup, + devices[j].path, + devices[j].weight) < 0) { + ret = -1; + break; + } + } + } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS)) { + for (j = 0; j < ndevices; j++) { + if (virCgroupSetBlkioDeviceReadIops(priv->cgroup, + devices[j].path, + devices[j].riops) < 0) { + ret = -1; + break; + } + } + } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS)) { + for (j = 0; j < ndevices; j++) { + if (virCgroupSetBlkioDeviceWriteIops(priv->cgroup, + devices[j].path, + devices[j].wiops) < 0) { + ret = -1; + break; + } + } + } else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_BPS)) { + for (j = 0; j < ndevices; j++) { + if (virCgroupSetBlkioDeviceReadBps(priv->cgroup, + devices[j].path, + devices[j].rbps) < 0) { + ret = -1; + break; + } + } + } else {

+ for (j = 0; j < ndevices; j++) { + if (virCgroupSetBlkioDeviceWriteBps(priv->cgroup, + devices[j].path, + devices[j].wbps) < 0) { + ret = -1; + break; + } } }