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package fs2
import (
"strconv"
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/cgroups/fscommon"
"github.com/opencontainers/runc/libcontainer/configs"
)
func isHugeTlbSet(r *configs.Resources) bool {
return len(r.HugetlbLimit) > 0
}
func setHugeTlb(dirPath string, r *configs.Resources) error {
if !isHugeTlbSet(r) {
return nil
}
for _, hugetlb := range r.HugetlbLimit {
if err := cgroups.WriteFile(dirPath, "hugetlb."+hugetlb.Pagesize+".max", strconv.FormatUint(hugetlb.Limit, 10)); err != nil {
return err
}
}
return nil
}
func statHugeTlb(dirPath string, stats *cgroups.Stats) error {
hugetlbStats := cgroups.HugetlbStats{}
for _, pagesize := range cgroups.HugePageSizes() {
value, err := fscommon.GetCgroupParamUint(dirPath, "hugetlb."+pagesize+".current")
if err != nil {
return err
}
hugetlbStats.Usage = value
fileName := "hugetlb." + pagesize + ".events"
value, err = fscommon.GetValueByKey(dirPath, fileName, "max")
if err != nil {
return err
}
hugetlbStats.Failcnt = value
stats.HugetlbStats[pagesize] = hugetlbStats
}
return nil
}
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