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vircgroup: introduce virCgroupV2GetMemoryStat

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2018-08-17 16:55:34 +02:00
parent 63bd23a6ad
commit d080c00166
1 changed files with 75 additions and 0 deletions
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75
src/util/vircgroupv2.c
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@ -1041,6 +1041,80 @@ virCgroupV2SetMemory(virCgroupPtr group,
}
static int
virCgroupV2GetMemoryStat(virCgroupPtr group,
unsigned long long *cache,
unsigned long long *activeAnon,
unsigned long long *inactiveAnon,
unsigned long long *activeFile,
unsigned long long *inactiveFile,
unsigned long long *unevictable)
{
VIR_AUTOFREE(char *) stat = NULL;
char *line = NULL;
unsigned long long cacheVal = 0;
unsigned long long activeAnonVal = 0;
unsigned long long inactiveAnonVal = 0;
unsigned long long activeFileVal = 0;
unsigned long long inactiveFileVal = 0;
unsigned long long unevictableVal = 0;
if (virCgroupGetValueStr(group,
VIR_CGROUP_CONTROLLER_MEMORY,
"memory.stat",
&stat) < 0) {
return -1;
}
line = stat;
while (line) {
char *newLine = strchr(line, '\n');
char *valueStr = strchr(line, ' ');
unsigned long long value;
if (newLine)
*newLine = '\0';
if (!valueStr) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot parse 'memory.stat' cgroup file."));
return -1;
}
*valueStr = '\0';
if (virStrToLong_ull(valueStr + 1, NULL, 10, &value) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to parse '%s' as an integer"),
valueStr + 1);
return -1;
}
if (STREQ(line, "file"))
cacheVal = value >> 10;
else if (STREQ(line, "active_anon"))
activeAnonVal = value >> 10;
else if (STREQ(line, "inactive_anon"))
inactiveAnonVal = value >> 10;
else if (STREQ(line, "active_file"))
activeFileVal = value >> 10;
else if (STREQ(line, "inactive_file"))
inactiveFileVal = value >> 10;
else if (STREQ(line, "unevictable"))
unevictableVal = value >> 10;
}
*cache = cacheVal;
*activeAnon = activeAnonVal;
*inactiveAnon = inactiveAnonVal;
*activeFile = activeFileVal;
*inactiveFile = inactiveFileVal;
*unevictable = unevictableVal;
return 0;
}
virCgroupBackend virCgroupV2Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V2,
@ -1079,6 +1153,7 @@ virCgroupBackend virCgroupV2Backend = {
.getBlkioDeviceWriteBps = virCgroupV2GetBlkioDeviceWriteBps,
.setMemory = virCgroupV2SetMemory,
.getMemoryStat = virCgroupV2GetMemoryStat,
};