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Implement domainSetMemoryParamters for LXC

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Add support in the lxc driver for various memory controllable parameters
This commit is contained in:
Nikunj A. Dadhania 2010-10-12 18:31:19 +02:00 committed by Daniel Veillard
parent 809e143004
commit 0cdd1ed91b
1 changed files with 98 additions and 1 deletions
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99
src/lxc/lxc_driver.c
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@ -677,6 +677,103 @@ cleanup:
return ret;
}
static int lxcDomainSetMemoryParameters(virDomainPtr dom,
virMemoryParameterPtr params,
int nparams,
unsigned int flags ATTRIBUTE_UNUSED)
{
lxc_driver_t *driver = dom->conn->privateData;
int i;
virCgroupPtr cgroup = NULL;
virDomainObjPtr vm = NULL;
int ret = -1;
lxcDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
if (vm == NULL) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
lxcError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (virCgroupForDomain(driver->cgroup, vm->def->name, &cgroup, 0) != 0) {
lxcError(VIR_ERR_INTERNAL_ERROR,
_("cannot find cgroup for domain %s"), vm->def->name);
goto cleanup;
}
ret = 0;
for (i = 0; i < nparams; i++) {
virMemoryParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_MEMORY_HARD_LIMIT)) {
int rc;
if (param->type != VIR_DOMAIN_MEMORY_PARAM_ULLONG) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("invalid type for memory hard_limit tunable, expected a 'ullong'"));
ret = -1;
continue;
}
rc = virCgroupSetMemoryHardLimit(cgroup, params[i].value.ul);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to set memory hard_limit tunable"));
ret = -1;
}
} else if (STREQ(param->field, VIR_DOMAIN_MEMORY_SOFT_LIMIT)) {
int rc;
if (param->type != VIR_DOMAIN_MEMORY_PARAM_ULLONG) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("invalid type for memory soft_limit tunable, expected a 'ullong'"));
ret = -1;
continue;
}
rc = virCgroupSetMemorySoftLimit(cgroup, params[i].value.ul);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to set memory soft_limit tunable"));
ret = -1;
}
} else if (STREQ(param->field, VIR_DOMAIN_SWAP_HARD_LIMIT)) {
int rc;
if (param->type != VIR_DOMAIN_MEMORY_PARAM_ULLONG) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("invalid type for swap_hard_limit tunable, expected a 'ullong'"));
ret = -1;
continue;
}
rc = virCgroupSetSwapHardLimit(cgroup, params[i].value.ul);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to set swap_hard_limit tunable"));
ret = -1;
}
} else if (STREQ(param->field, VIR_DOMAIN_MEMORY_MIN_GUARANTEE)) {
lxcError(VIR_ERR_INVALID_ARG,
_("Memory tunable `%s' not implemented"), param->field);
ret = -1;
} else {
lxcError(VIR_ERR_INVALID_ARG,
_("Parameter `%s' not supported"), param->field);
ret = -1;
}
}
cleanup:
if (cgroup)
virCgroupFree(&cgroup);
if (vm)
virDomainObjUnlock(vm);
lxcDriverUnlock(driver);
return ret;
}
static char *lxcDomainDumpXML(virDomainPtr dom,
int flags)
{
@ -2620,7 +2717,7 @@ static virDriver lxcDriver = {
NULL, /* domainRevertToSnapshot */
NULL, /* domainSnapshotDelete */
NULL, /* qemuDomainMonitorCommand */
NULL, /* domainSetMemoryParameters */
lxcDomainSetMemoryParameters, /* domainSetMemoryParameters */
NULL, /* domainGetMemoryParameters */
};