kubernetes/vendor/github.com/opencontainers/runc/libcontainer/cgroups/fs2/hugetlb.go
Kir Kolyshkin 4e7cf5413d vendor: bump runc to 1.0.0 pre
This is to check if runc 1.0.0 (to be released shortly) works with k8s.

The commands used were (roughly):

	hack/pin-dependency.sh github.com/opencontainers/runc v1.0.0
	hack/lint-dependencies.sh
	# Follow its recommendations.
	hack/pin-dependency.sh github.com/cilium/ebpf v0.6.1
	hack/pin-dependency.sh github.com/opencontainers/selinux v1.8.2
	hack/pin-dependency.sh github.com/sirupsen/logrus v1.8.1
	# Recheck.
	hack/lint-dependencies.sh
	GO111MODULE=on go mod edit -dropreplace github.com/willf/bitset
	hack/update-vendor.sh
	# Recheck.
	hack/lint-dependencies.sh
	hack/update-internal-modules.sh
	# Recheck.
	hack/lint-dependencies.sh

[v2: rebased, updated runc 3a0234e1fe2e82 -> 2f8e8e9d977500]
[v3: testing master + runc pr 3019]
[v4: updated to 93a01cd4d0b7a0f08a]
[v5: updated to f093cca13d3cf8a484]
[v6: rebased]
[v7: updated to runc v1.0.0]
[v8: rebased]

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2021-06-30 16:16:32 -07:00

58 lines
1.3 KiB
Go

// +build linux
package fs2
import (
"strconv"
"github.com/pkg/errors"
"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 {
hugePageSizes, err := cgroups.GetHugePageSize()
if err != nil {
return errors.Wrap(err, "failed to fetch hugetlb info")
}
hugetlbStats := cgroups.HugetlbStats{}
for _, pagesize := range 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 errors.Wrap(err, "failed to read stats")
}
hugetlbStats.Failcnt = value
stats.HugetlbStats[pagesize] = hugetlbStats
}
return nil
}