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由 John Ferlan 提交于
Cherry-picked from 38ada092 As a consequence of the cgroup layout changes from commit 'cfed9ad4', the lxcDomainGetSchedulerParameters[Flags]()' and lxcGetSchedulerType() APIs failed to return data for a non running domain. This can be seen through a 'virsh schedinfo <domain>' command which returns: Scheduler : Unknown error: Requested operation is not valid: cgroup CPU controller is not mounted Prior to that change a non running domain would return: Scheduler : posix cpu_shares : 0 vcpu_period : 0 vcpu_quota : 0 emulator_period: 0 emulator_quota : 0 This patch will restore the capability to return configuration only data for a non running domain regardless of whether cgroups are available. NOTE: Needed to change the VIR_STRDUP(ret, "posix"); to ret = strdup("posix"); and added the virReportOOMError(); on failure.
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