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qemu: Abstract code for cpuset controller setting into a helper

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This commit is contained in:
Osier Yang 2013-05-17 19:59:34 +08:00
parent 9f2455d359
commit 479d5991cd
1 changed files with 48 additions and 26 deletions
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72
src/qemu/qemu_cgroup.c
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@ -627,6 +627,52 @@ cleanup:
} }
static int
qemuSetupCpusetCgroup(virDomainObjPtr vm,
virBitmapPtr nodemask)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
char *mask = NULL;
int rc;
int ret = -1;
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET))
return 0;
if ((vm->def->numatune.memory.nodemask ||
(vm->def->numatune.memory.placement_mode ==
VIR_NUMA_TUNE_MEM_PLACEMENT_MODE_AUTO)) &&
vm->def->numatune.memory.mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT) {
if (vm->def->numatune.memory.placement_mode ==
VIR_NUMA_TUNE_MEM_PLACEMENT_MODE_AUTO)
mask = virBitmapFormat(nodemask);
else
mask = virBitmapFormat(vm->def->numatune.memory.nodemask);
if (!mask) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to convert memory nodemask"));
goto cleanup;
}
rc = virCgroupSetCpusetMems(priv->cgroup, mask);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to set cpuset.mems for domain %s"),
vm->def->name);
goto cleanup;
}
}
ret = 0;
cleanup:
VIR_FREE(mask);
return ret;
}
int qemuInitCgroup(virQEMUDriverPtr driver, int qemuInitCgroup(virQEMUDriverPtr driver,
virDomainObjPtr vm, virDomainObjPtr vm,
bool startup) bool startup)
@ -774,32 +820,8 @@ int qemuSetupCgroup(virQEMUDriverPtr driver,
} }
} }
if ((vm->def->numatune.memory.nodemask || if (qemuSetupCpusetCgroup(vm, nodemask) < 0)
(vm->def->numatune.memory.placement_mode ==
VIR_NUMA_TUNE_MEM_PLACEMENT_MODE_AUTO)) &&
vm->def->numatune.memory.mode == VIR_DOMAIN_NUMATUNE_MEM_STRICT &&
virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) {
char *mask = NULL;
if (vm->def->numatune.memory.placement_mode ==
VIR_NUMA_TUNE_MEM_PLACEMENT_MODE_AUTO)
mask = virBitmapFormat(nodemask);
else
mask = virBitmapFormat(vm->def->numatune.memory.nodemask);
if (!mask) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to convert memory nodemask"));
goto cleanup; goto cleanup;
}
rc = virCgroupSetCpusetMems(priv->cgroup, mask);
VIR_FREE(mask);
if (rc != 0) {
virReportSystemError(-rc,
_("Unable to set cpuset.mems for domain %s"),
vm->def->name);
goto cleanup;
}
}
done: done:
rc = 0; rc = 0;