mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-01 10:51:12 +00:00
7e0d11be5b
Include virutil.h in all files that use it, instead of relying on it being pulled in somehow. Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
271 lines
9.4 KiB
C
271 lines
9.4 KiB
C
/*
|
|
* domain_cgroup.c: cgroup functions shared between hypervisor drivers
|
|
*
|
|
* Copyright IBM Corp. 2020
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "domain_cgroup.h"
|
|
#include "domain_driver.h"
|
|
|
|
#include "virutil.h"
|
|
|
|
#define VIR_FROM_THIS VIR_FROM_DOMAIN
|
|
|
|
|
|
int
|
|
virDomainCgroupSetupBlkio(virCgroupPtr cgroup, virDomainBlkiotune blkio)
|
|
{
|
|
size_t i;
|
|
|
|
if (blkio.weight != 0 &&
|
|
virCgroupSetBlkioWeight(cgroup, blkio.weight) < 0)
|
|
return -1;
|
|
|
|
if (blkio.ndevices) {
|
|
for (i = 0; i < blkio.ndevices; i++) {
|
|
virBlkioDevicePtr dev = &blkio.devices[i];
|
|
|
|
if (dev->weight &&
|
|
virCgroupSetupBlkioDeviceWeight(cgroup, dev->path,
|
|
&dev->weight) < 0)
|
|
return -1;
|
|
|
|
if (dev->riops &&
|
|
virCgroupSetupBlkioDeviceReadIops(cgroup, dev->path,
|
|
&dev->riops) < 0)
|
|
return -1;
|
|
|
|
if (dev->wiops &&
|
|
virCgroupSetupBlkioDeviceWriteIops(cgroup, dev->path,
|
|
&dev->wiops) < 0)
|
|
return -1;
|
|
|
|
if (dev->rbps &&
|
|
virCgroupSetupBlkioDeviceReadBps(cgroup, dev->path,
|
|
&dev->rbps) < 0)
|
|
return -1;
|
|
|
|
if (dev->wbps &&
|
|
virCgroupSetupBlkioDeviceWriteBps(cgroup, dev->path,
|
|
&dev->wbps) < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
virDomainCgroupSetupMemtune(virCgroupPtr cgroup, virDomainMemtune mem)
|
|
{
|
|
if (virMemoryLimitIsSet(mem.hard_limit))
|
|
if (virCgroupSetMemoryHardLimit(cgroup, mem.hard_limit) < 0)
|
|
return -1;
|
|
|
|
if (virMemoryLimitIsSet(mem.soft_limit))
|
|
if (virCgroupSetMemorySoftLimit(cgroup, mem.soft_limit) < 0)
|
|
return -1;
|
|
|
|
if (virMemoryLimitIsSet(mem.swap_hard_limit))
|
|
if (virCgroupSetMemSwapHardLimit(cgroup, mem.swap_hard_limit) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
virDomainCgroupSetupDomainBlkioParameters(virCgroupPtr cgroup,
|
|
virDomainDefPtr def,
|
|
virTypedParameterPtr params,
|
|
int nparams)
|
|
{
|
|
size_t i;
|
|
int ret = 0;
|
|
|
|
for (i = 0; i < nparams; i++) {
|
|
virTypedParameterPtr param = ¶ms[i];
|
|
|
|
if (STREQ(param->field, VIR_DOMAIN_BLKIO_WEIGHT)) {
|
|
if (virCgroupSetBlkioWeight(cgroup, params[i].value.ui) < 0)
|
|
ret = -1;
|
|
} else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) ||
|
|
STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) ||
|
|
STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS) ||
|
|
STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_READ_BPS) ||
|
|
STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS)) {
|
|
size_t ndevices;
|
|
virBlkioDevicePtr devices = NULL;
|
|
size_t j;
|
|
|
|
if (virDomainDriverParseBlkioDeviceStr(params[i].value.s,
|
|
param->field,
|
|
&devices,
|
|
&ndevices) < 0) {
|
|
ret = -1;
|
|
continue;
|
|
}
|
|
|
|
if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WEIGHT)) {
|
|
for (j = 0; j < ndevices; j++) {
|
|
if (virCgroupSetupBlkioDeviceWeight(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 (virCgroupSetupBlkioDeviceReadIops(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 (virCgroupSetupBlkioDeviceWriteIops(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 (virCgroupSetupBlkioDeviceReadBps(cgroup, devices[j].path,
|
|
&devices[j].rbps) < 0) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
}
|
|
} else if (STREQ(param->field, VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS)) {
|
|
for (j = 0; j < ndevices; j++) {
|
|
if (virCgroupSetupBlkioDeviceWriteBps(cgroup, devices[j].path,
|
|
&devices[j].wbps) < 0) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
virReportError(VIR_ERR_INVALID_ARG, _("Unknown blkio parameter %s"),
|
|
param->field);
|
|
ret = -1;
|
|
virBlkioDeviceArrayClear(devices, ndevices);
|
|
g_free(devices);
|
|
|
|
continue;
|
|
}
|
|
|
|
if (j != ndevices ||
|
|
virDomainDriverMergeBlkioDevice(&def->blkio.devices,
|
|
&def->blkio.ndevices,
|
|
devices, ndevices,
|
|
param->field) < 0)
|
|
ret = -1;
|
|
|
|
virBlkioDeviceArrayClear(devices, ndevices);
|
|
g_free(devices);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int
|
|
virDomainCgroupSetMemoryLimitParameters(virCgroupPtr cgroup,
|
|
virDomainObjPtr vm,
|
|
virDomainDefPtr liveDef,
|
|
virDomainDefPtr persistentDef,
|
|
virTypedParameterPtr params,
|
|
int nparams)
|
|
{
|
|
unsigned long long swap_hard_limit;
|
|
unsigned long long hard_limit = 0;
|
|
unsigned long long soft_limit = 0;
|
|
bool set_swap_hard_limit = false;
|
|
bool set_hard_limit = false;
|
|
bool set_soft_limit = false;
|
|
int rc;
|
|
|
|
#define VIR_GET_LIMIT_PARAMETER(PARAM, VALUE) \
|
|
if ((rc = virTypedParamsGetULLong(params, nparams, PARAM, &VALUE)) < 0) \
|
|
return -1; \
|
|
\
|
|
if (rc == 1) \
|
|
set_ ## VALUE = true;
|
|
|
|
VIR_GET_LIMIT_PARAMETER(VIR_DOMAIN_MEMORY_SWAP_HARD_LIMIT, swap_hard_limit)
|
|
VIR_GET_LIMIT_PARAMETER(VIR_DOMAIN_MEMORY_HARD_LIMIT, hard_limit)
|
|
VIR_GET_LIMIT_PARAMETER(VIR_DOMAIN_MEMORY_SOFT_LIMIT, soft_limit)
|
|
|
|
#undef VIR_GET_LIMIT_PARAMETER
|
|
|
|
/* Swap hard limit must be greater than hard limit. */
|
|
if (set_swap_hard_limit || set_hard_limit) {
|
|
unsigned long long mem_limit = vm->def->mem.hard_limit;
|
|
unsigned long long swap_limit = vm->def->mem.swap_hard_limit;
|
|
|
|
if (set_swap_hard_limit)
|
|
swap_limit = swap_hard_limit;
|
|
|
|
if (set_hard_limit)
|
|
mem_limit = hard_limit;
|
|
|
|
if (mem_limit > swap_limit) {
|
|
virReportError(VIR_ERR_INVALID_ARG, "%s",
|
|
_("memory hard_limit tunable value must be lower "
|
|
"than or equal to swap_hard_limit"));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
#define VIR_SET_MEM_PARAMETER(FUNC, VALUE) \
|
|
if (set_ ## VALUE) { \
|
|
if (liveDef) { \
|
|
if ((rc = FUNC(cgroup, VALUE)) < 0) \
|
|
return -1; \
|
|
liveDef->mem.VALUE = VALUE; \
|
|
} \
|
|
\
|
|
if (persistentDef) \
|
|
persistentDef->mem.VALUE = VALUE; \
|
|
}
|
|
|
|
/* Soft limit doesn't clash with the others */
|
|
VIR_SET_MEM_PARAMETER(virCgroupSetMemorySoftLimit, soft_limit);
|
|
|
|
/* set hard limit before swap hard limit if decreasing it */
|
|
if (liveDef && liveDef->mem.hard_limit > hard_limit) {
|
|
VIR_SET_MEM_PARAMETER(virCgroupSetMemoryHardLimit, hard_limit);
|
|
/* inhibit changing the limit a second time */
|
|
set_hard_limit = false;
|
|
}
|
|
|
|
VIR_SET_MEM_PARAMETER(virCgroupSetMemSwapHardLimit, swap_hard_limit);
|
|
|
|
/* otherwise increase it after swap hard limit */
|
|
VIR_SET_MEM_PARAMETER(virCgroupSetMemoryHardLimit, hard_limit);
|
|
|
|
#undef VIR_SET_MEM_PARAMETER
|
|
|
|
return 0;
|
|
}
|