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vircgroup: extract virCgroupV1(Set|Get)BlkioDeviceReadIops

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Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2018-09-24 12:20:31 +02:00
parent 8f50f9ca24
commit dfaf5c6de1
3 changed files with 64 additions and 32 deletions
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34
src/util/vircgroup.c
View File

@ -1381,19 +1381,7 @@ virCgroupSetBlkioDeviceReadIops(virCgroupPtr group,
const char *path,
unsigned int riops)
{
VIR_AUTOFREE(char *) str = NULL;
VIR_AUTOFREE(char *) blkstr = NULL;
if (!(blkstr = virCgroupGetBlockDevString(path)))
return -1;
if (virAsprintf(&str, "%s%u", blkstr, riops) < 0)
return -1;
return virCgroupSetValueStr(group,
VIR_CGROUP_CONTROLLER_BLKIO,
"blkio.throttle.read_iops_device",
str);
VIR_CGROUP_BACKEND_CALL(group, setBlkioDeviceReadIops, -1, path, riops);
}
@ -1513,25 +1501,7 @@ virCgroupGetBlkioDeviceReadIops(virCgroupPtr group,
const char *path,
unsigned int *riops)
{
VIR_AUTOFREE(char *) str = NULL;
if (virCgroupGetValueForBlkDev(group,
VIR_CGROUP_CONTROLLER_BLKIO,
"blkio.throttle.read_iops_device",
path,
&str) < 0)
return -1;
if (!str) {
*riops = 0;
} else if (virStrToLong_ui(str, NULL, 10, riops) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to parse '%s' as an integer"),
str);
return -1;
}
return 0;
VIR_CGROUP_BACKEND_CALL(group, getBlkioDeviceReadIops, -1, path, riops);
}
/**

12
src/util/vircgroupbackend.h
View File

@ -170,6 +170,16 @@ typedef int
const char *path,
unsigned int *weight);
typedef int
(*virCgroupSetBlkioDeviceReadIopsCB)(virCgroupPtr group,
const char *path,
unsigned int riops);
typedef int
(*virCgroupGetBlkioDeviceReadIopsCB)(virCgroupPtr group,
const char *path,
unsigned int *riops);
struct _virCgroupBackend {
virCgroupBackendType type;
@ -200,6 +210,8 @@ struct _virCgroupBackend {
virCgroupGetBlkioIoDeviceServicedCB getBlkioIoDeviceServiced;
virCgroupSetBlkioDeviceWeightCB setBlkioDeviceWeight;
virCgroupGetBlkioDeviceWeightCB getBlkioDeviceWeight;
virCgroupSetBlkioDeviceReadIopsCB setBlkioDeviceReadIops;
virCgroupGetBlkioDeviceReadIopsCB getBlkioDeviceReadIops;
};
typedef struct _virCgroupBackend virCgroupBackend;
typedef virCgroupBackend *virCgroupBackendPtr;

50
src/util/vircgroupv1.c
View File

@ -1185,6 +1185,54 @@ virCgroupV1GetBlkioDeviceWeight(virCgroupPtr group,
}
static int
virCgroupV1SetBlkioDeviceReadIops(virCgroupPtr group,
const char *path,
unsigned int riops)
{
VIR_AUTOFREE(char *) str = NULL;
VIR_AUTOFREE(char *) blkstr = NULL;
if (!(blkstr = virCgroupGetBlockDevString(path)))
return -1;
if (virAsprintf(&str, "%s%u", blkstr, riops) < 0)
return -1;
return virCgroupSetValueStr(group,
VIR_CGROUP_CONTROLLER_BLKIO,
"blkio.throttle.read_iops_device",
str);
}
static int
virCgroupV1GetBlkioDeviceReadIops(virCgroupPtr group,
const char *path,
unsigned int *riops)
{
VIR_AUTOFREE(char *) str = NULL;
if (virCgroupGetValueForBlkDev(group,
VIR_CGROUP_CONTROLLER_BLKIO,
"blkio.throttle.read_iops_device",
path,
&str) < 0)
return -1;
if (!str) {
*riops = 0;
} else if (virStrToLong_ui(str, NULL, 10, riops) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to parse '%s' as an integer"),
str);
return -1;
}
return 0;
}
virCgroupBackend virCgroupV1Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V1,
@ -1213,6 +1261,8 @@ virCgroupBackend virCgroupV1Backend = {
.getBlkioIoDeviceServiced = virCgroupV1GetBlkioIoDeviceServiced,
.setBlkioDeviceWeight = virCgroupV1SetBlkioDeviceWeight,
.getBlkioDeviceWeight = virCgroupV1GetBlkioDeviceWeight,
.setBlkioDeviceReadIops = virCgroupV1SetBlkioDeviceReadIops,
.getBlkioDeviceReadIops = virCgroupV1GetBlkioDeviceReadIops,
};