[libvirt] [PATCH 1/3] Split out virDomainGetBlkioParametersInternal
Ján Tomko
jtomko at redhat.com
Tue Jun 17 13:03:36 UTC 2014
Reuse the common code from LXC and QEMU drivers.
---
src/conf/domain_conf.c | 383 +++++++++++++++++++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 8 +
src/libvirt_private.syms | 1 +
src/lxc/lxc_driver.c | 374 +--------------------------------------------
src/qemu/qemu_driver.c | 383 +----------------------------------------------
5 files changed, 400 insertions(+), 749 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 4114289..4fe7cb6 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -19777,3 +19777,386 @@ virDomainObjSetMetadata(virDomainObjPtr vm,
return 0;
}
+
+#define CONF_NB_BLKIO_PARAM 6
+
+int
+virDomainGetBlkioParametersInternal(virCgroupPtr cgroup,
+ virDomainDefPtr def,
+ virDomainDefPtr persistentDef,
+ virTypedParameterPtr params,
+ int *nparams,
+ unsigned int flags)
+{
+ int ret = -1;
+ size_t i, j;
+ unsigned int val;
+
+ if ((*nparams) == 0) {
+ /* Current number of blkio parameters supported by cgroups */
+ *nparams = CONF_NB_BLKIO_PARAM;
+ ret = 0;
+ goto cleanup;
+ }
+
+ if (flags & VIR_DOMAIN_AFFECT_LIVE) {
+ if (!virCgroupHasController(cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) {
+ virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("blkio cgroup isn't mounted"));
+ goto cleanup;
+ }
+
+ for (i = 0; i < *nparams && i < CONF_NB_BLKIO_PARAM; i++) {
+ virTypedParameterPtr param = ¶ms[i];
+ val = 0;
+
+ switch (i) {
+ case 0: /* fill blkio weight here */
+ if (virCgroupGetBlkioWeight(cgroup, &val) < 0)
+ goto cleanup;
+ if (virTypedParameterAssign(param, VIR_DOMAIN_BLKIO_WEIGHT,
+ VIR_TYPED_PARAM_UINT, val) < 0)
+ goto cleanup;
+ break;
+
+ case 1: /* blkiotune.device_weight */
+ if (def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < def->blkio.ndevices; j++) {
+ if (!def->blkio.devices[j].weight)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ def->blkio.devices[j].path,
+ def->blkio.devices[j].weight);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 2: /* blkiotune.device_read_iops */
+ if (def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < def->blkio.ndevices; j++) {
+ if (!def->blkio.devices[j].riops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ def->blkio.devices[j].path,
+ def->blkio.devices[j].riops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 3: /* blkiotune.device_write_iops */
+ if (def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < def->blkio.ndevices; j++) {
+ if (!def->blkio.devices[j].wiops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ def->blkio.devices[j].path,
+ def->blkio.devices[j].wiops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 4: /* blkiotune.device_read_bps */
+ if (def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < def->blkio.ndevices; j++) {
+ if (!def->blkio.devices[j].rbps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ def->blkio.devices[j].path,
+ def->blkio.devices[j].rbps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_DEVICE_READ_BPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+
+ case 5: /* blkiotune.device_write_bps */
+ if (def->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < def->blkio.ndevices; j++) {
+ if (!def->blkio.devices[j].wbps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ def->blkio.devices[j].path,
+ def->blkio.devices[j].wbps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (virTypedParameterAssign(param,
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS,
+ VIR_TYPED_PARAM_STRING,
+ param->value.s) < 0)
+ goto cleanup;
+ break;
+ }
+ }
+ } else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
+ for (i = 0; i < *nparams && i < CONF_NB_BLKIO_PARAM; i++) {
+ virTypedParameterPtr param = ¶ms[i];
+ val = 0;
+ param->value.ui = 0;
+ param->type = VIR_TYPED_PARAM_UINT;
+
+ switch (i) {
+ case 0: /* fill blkio weight here */
+ if (virStrcpyStatic(param->field, VIR_DOMAIN_BLKIO_WEIGHT) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_WEIGHT);
+ goto cleanup;
+ }
+ param->value.ui = persistentDef->blkio.weight;
+ break;
+
+ case 1: /* blkiotune.device_weight */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].weight)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].weight);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_DEVICE_WEIGHT);
+ goto cleanup;
+ }
+ break;
+
+ case 2: /* blkiotune.device_read_iops */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].riops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].riops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS);
+ goto cleanup;
+ }
+ break;
+ case 3: /* blkiotune.device_write_iops */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].wiops)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%u",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].wiops);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS);
+ goto cleanup;
+ }
+ break;
+ case 4: /* blkiotune.device_read_bps */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].rbps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].rbps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_DEVICE_READ_BPS) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_DEVICE_READ_BPS);
+ goto cleanup;
+ }
+ break;
+
+ case 5: /* blkiotune.device_write_bps */
+ if (persistentDef->blkio.ndevices > 0) {
+ virBuffer buf = VIR_BUFFER_INITIALIZER;
+ bool comma = false;
+
+ for (j = 0; j < persistentDef->blkio.ndevices; j++) {
+ if (!persistentDef->blkio.devices[j].wbps)
+ continue;
+ if (comma)
+ virBufferAddChar(&buf, ',');
+ else
+ comma = true;
+ virBufferAsprintf(&buf, "%s,%llu",
+ persistentDef->blkio.devices[j].path,
+ persistentDef->blkio.devices[j].wbps);
+ }
+ if (virBufferError(&buf)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ param->value.s = virBufferContentAndReset(&buf);
+ }
+ if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
+ goto cleanup;
+ param->type = VIR_TYPED_PARAM_STRING;
+ if (virStrcpyStatic(param->field,
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS) == NULL) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Field name '%s' too long"),
+ VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS);
+ goto cleanup;
+ }
+ break;
+ }
+ }
+ }
+
+ if (CONF_NB_BLKIO_PARAM < *nparams)
+ *nparams = CONF_NB_BLKIO_PARAM;
+ ret = 0;
+ cleanup:
+ return ret;
+}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index a6ac95a..02cc10b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -48,6 +48,8 @@
# include "virstoragefile.h"
# include "virnuma.h"
# include "virseclabel.h"
+# include "vircgroup.h"
+# include "virtypedparam.h"
/* forward declarations of all device types, required by
* virDomainDeviceDef
@@ -2711,4 +2713,10 @@ int virDomainObjSetMetadata(virDomainObjPtr vm,
const char *configDir,
unsigned int flags);
+int virDomainGetBlkioParametersInternal(virCgroupPtr cgroup,
+ virDomainDefPtr def,
+ virDomainDefPtr persistentDef,
+ virTypedParameterPtr params,
+ int *nparams,
+ unsigned int flags);
#endif /* __DOMAIN_CONF_H */
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 29a9ed1..4ef3687 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -248,6 +248,7 @@ virDomainFSTypeFromString;
virDomainFSTypeToString;
virDomainFSWrpolicyTypeFromString;
virDomainFSWrpolicyTypeToString;
+virDomainGetBlkioParametersInternal;
virDomainGetFilesystemForTarget;
virDomainGraphicsAuthConnectedTypeFromString;
virDomainGraphicsAuthConnectedTypeToString;
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index d2852a7..fd5e06e 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -2647,8 +2647,6 @@ lxcDomainSetBlkioParameters(virDomainPtr dom,
}
-#define LXC_NB_BLKIO_PARAM 6
-
static int
lxcDomainGetBlkioParameters(virDomainPtr dom,
virTypedParameterPtr params,
@@ -2656,10 +2654,8 @@ lxcDomainGetBlkioParameters(virDomainPtr dom,
unsigned int flags)
{
virLXCDriverPtr driver = dom->conn->privateData;
- size_t i, j;
virDomainObjPtr vm = NULL;
virDomainDefPtr persistentDef = NULL;
- unsigned int val;
int ret = -1;
virCapsPtr caps = NULL;
virLXCDomainObjPrivatePtr priv;
@@ -2684,375 +2680,13 @@ lxcDomainGetBlkioParameters(virDomainPtr dom,
if (!(caps = virLXCDriverGetCapabilities(driver, false)))
goto cleanup;
- if ((*nparams) == 0) {
- /* Current number of blkio parameters supported by cgroups */
- *nparams = LXC_NB_BLKIO_PARAM;
- ret = 0;
- goto cleanup;
- }
-
- if (virDomainLiveConfigHelperMethod(caps, driver->xmlopt, vm, &flags,
+ if (*nparams &&
+ virDomainLiveConfigHelperMethod(caps, driver->xmlopt, vm, &flags,
&persistentDef) < 0)
goto cleanup;
- if (flags & VIR_DOMAIN_AFFECT_LIVE) {
- if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) {
- virReportError(VIR_ERR_OPERATION_INVALID, "%s",
- _("blkio cgroup isn't mounted"));
- goto cleanup;
- }
-
- for (i = 0; i < *nparams && i < LXC_NB_BLKIO_PARAM; i++) {
- virTypedParameterPtr param = ¶ms[i];
- val = 0;
-
- switch (i) {
- case 0: /* fill blkio weight here */
- if (virCgroupGetBlkioWeight(priv->cgroup, &val) < 0)
- goto cleanup;
- if (virTypedParameterAssign(param, VIR_DOMAIN_BLKIO_WEIGHT,
- VIR_TYPED_PARAM_UINT, val) < 0)
- goto cleanup;
- break;
-
- case 1: /* blkiotune.device_weight */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].weight)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].weight);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 2: /* blkiotune.device_read_iops */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].riops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].riops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 3: /* blkiotune.device_write_iops */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].wiops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].wiops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 4: /* blkiotune.device_read_bps */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].rbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].rbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 5: /* blkiotune.device_write_bps */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].wbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].wbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
- }
- }
- } else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
- for (i = 0; i < *nparams && i < LXC_NB_BLKIO_PARAM; i++) {
- virTypedParameterPtr param = ¶ms[i];
- val = 0;
- param->value.ui = 0;
- param->type = VIR_TYPED_PARAM_UINT;
-
- switch (i) {
- case 0: /* fill blkio weight here */
- if (virStrcpyStatic(param->field, VIR_DOMAIN_BLKIO_WEIGHT) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_WEIGHT);
- goto cleanup;
- }
- param->value.ui = persistentDef->blkio.weight;
- break;
-
- case 1: /* blkiotune.device_weight */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].weight)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].weight);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT);
- goto cleanup;
- }
- break;
-
- case 2: /* blkiotune.device_read_iops */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].riops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].riops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS);
- goto cleanup;
- }
- break;
- case 3: /* blkiotune.device_write_iops */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].wiops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].wiops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS);
- goto cleanup;
- }
- break;
- case 4: /* blkiotune.device_read_bps */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].rbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].rbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS);
- goto cleanup;
- }
- break;
-
- case 5: /* blkiotune.device_write_bps */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].wbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].wbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS);
- goto cleanup;
- }
- break;
- }
- }
- }
-
- if (LXC_NB_BLKIO_PARAM < *nparams)
- *nparams = LXC_NB_BLKIO_PARAM;
- ret = 0;
+ ret = virDomainGetBlkioParametersInternal(priv->cgroup, vm->def, persistentDef,
+ params, nparams, flags);
cleanup:
if (vm)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 4ab5a7b..e5786c3 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -7921,10 +7921,8 @@ qemuDomainGetBlkioParameters(virDomainPtr dom,
unsigned int flags)
{
virQEMUDriverPtr driver = dom->conn->privateData;
- size_t i, j;
virDomainObjPtr vm = NULL;
virDomainDefPtr persistentDef = NULL;
- unsigned int val;
int ret = -1;
virCapsPtr caps = NULL;
qemuDomainObjPrivatePtr priv;
@@ -7957,386 +7955,13 @@ qemuDomainGetBlkioParameters(virDomainPtr dom,
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
- if ((*nparams) == 0) {
- /* Current number of blkio parameters supported by cgroups */
- *nparams = QEMU_NB_BLKIO_PARAM;
- ret = 0;
- goto cleanup;
- }
-
- if (virDomainLiveConfigHelperMethod(caps, driver->xmlopt, vm, &flags,
+ if (*nparams &&
+ virDomainLiveConfigHelperMethod(caps, driver->xmlopt, vm, &flags,
&persistentDef) < 0)
goto cleanup;
- if (flags & VIR_DOMAIN_AFFECT_LIVE) {
- if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_BLKIO)) {
- virReportError(VIR_ERR_OPERATION_INVALID, "%s",
- _("blkio cgroup isn't mounted"));
- goto cleanup;
- }
- }
-
- if (flags & VIR_DOMAIN_AFFECT_LIVE) {
- for (i = 0; i < *nparams && i < QEMU_NB_BLKIO_PARAM; i++) {
- virTypedParameterPtr param = ¶ms[i];
- val = 0;
-
- switch (i) {
- case 0: /* fill blkio weight here */
- if (virCgroupGetBlkioWeight(priv->cgroup, &val) < 0)
- goto cleanup;
- if (virTypedParameterAssign(param, VIR_DOMAIN_BLKIO_WEIGHT,
- VIR_TYPED_PARAM_UINT, val) < 0)
- goto cleanup;
- break;
-
- case 1: /* blkiotune.device_weight */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].weight)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].weight);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 2: /* blkiotune.device_read_iops */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].riops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].riops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 3: /* blkiotune.device_write_iops */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].wiops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].wiops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 4: /* blkiotune.device_read_bps */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].rbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].rbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- case 5: /* blkiotune.device_write_bps */
- if (vm->def->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < vm->def->blkio.ndevices; j++) {
- if (!vm->def->blkio.devices[j].wbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- vm->def->blkio.devices[j].path,
- vm->def->blkio.devices[j].wbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (virTypedParameterAssign(param,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS,
- VIR_TYPED_PARAM_STRING,
- param->value.s) < 0)
- goto cleanup;
- break;
-
- default:
- break;
- /* should not hit here */
- }
- }
- } else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
- for (i = 0; i < *nparams && i < QEMU_NB_BLKIO_PARAM; i++) {
- virTypedParameterPtr param = ¶ms[i];
- val = 0;
- param->value.ui = 0;
- param->type = VIR_TYPED_PARAM_UINT;
-
- switch (i) {
- case 0: /* fill blkio weight here */
- if (virStrcpyStatic(param->field, VIR_DOMAIN_BLKIO_WEIGHT) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_WEIGHT);
- goto cleanup;
- }
- param->value.ui = persistentDef->blkio.weight;
- break;
-
- case 1: /* blkiotune.device_weight */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].weight)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].weight);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WEIGHT);
- goto cleanup;
- }
- break;
-
- case 2: /* blkiotune.device_read_iops */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].riops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].riops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_READ_IOPS);
- goto cleanup;
- }
- break;
- case 3: /* blkiotune.device_write_iops */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].wiops)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%u",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].wiops);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_IOPS);
- goto cleanup;
- }
- break;
- case 4: /* blkiotune.device_read_bps */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].rbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].rbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_READ_BPS);
- goto cleanup;
- }
- break;
-
- case 5: /* blkiotune.device_write_bps */
- if (persistentDef->blkio.ndevices > 0) {
- virBuffer buf = VIR_BUFFER_INITIALIZER;
- bool comma = false;
-
- for (j = 0; j < persistentDef->blkio.ndevices; j++) {
- if (!persistentDef->blkio.devices[j].wbps)
- continue;
- if (comma)
- virBufferAddChar(&buf, ',');
- else
- comma = true;
- virBufferAsprintf(&buf, "%s,%llu",
- persistentDef->blkio.devices[j].path,
- persistentDef->blkio.devices[j].wbps);
- }
- if (virBufferError(&buf)) {
- virReportOOMError();
- goto cleanup;
- }
- param->value.s = virBufferContentAndReset(&buf);
- }
- if (!param->value.s && VIR_STRDUP(param->value.s, "") < 0)
- goto cleanup;
- param->type = VIR_TYPED_PARAM_STRING;
- if (virStrcpyStatic(param->field,
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS) == NULL) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Field name '%s' too long"),
- VIR_DOMAIN_BLKIO_DEVICE_WRITE_BPS);
- goto cleanup;
- }
- break;
-
-
- default:
- break;
- /* should not hit here */
- }
- }
- }
-
- if (QEMU_NB_BLKIO_PARAM < *nparams)
- *nparams = QEMU_NB_BLKIO_PARAM;
- ret = 0;
+ ret = virDomainGetBlkioParametersInternal(priv->cgroup, vm->def, persistentDef,
+ params, nparams, flags);
cleanup:
if (vm)
--
1.8.5.5
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