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Bump github.com/opencontainers/runc from 1.0.0-rc9 to 1.0.0-rc90

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Bumps [github.com/opencontainers/runc](https://github.com/opencontainers/runc) from 1.0.0-rc9 to 1.0.0-rc90.
- [Release notes](https://github.com/opencontainers/runc/releases)
- [Commits](https://github.com/opencontainers/runc/compare/v1.0.0-rc9...v1.0.0-rc90)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
dependabot-preview[bot]
2020-06-02 09:24:39 +00:00
committed by Daniel J Walsh
parent d6bf6b92c8
commit 23ff93d879
5 changed files with 40 additions and 7 deletions
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29
vendor/github.com/opencontainers/runc/libcontainer/cgroups/utils.go generated vendored
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@ -20,8 +20,9 @@ import (
)
const (
CgroupNamePrefix = "name="
CgroupProcesses = "cgroup.procs"
CgroupNamePrefix = "name="
CgroupProcesses = "cgroup.procs"
unifiedMountpoint = "/sys/fs/cgroup"
)
var (
@ -40,7 +41,7 @@ var HugePageSizeUnitList = []string{"B", "KB", "MB", "GB", "TB", "PB"}
func IsCgroup2UnifiedMode() bool {
isUnifiedOnce.Do(func() {
var st syscall.Statfs_t
if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil {
if err := syscall.Statfs(unifiedMountpoint, &st); err != nil {
panic("cannot statfs cgroup root")
}
isUnified = st.Type == unix.CGROUP2_SUPER_MAGIC
@ -50,6 +51,9 @@ func IsCgroup2UnifiedMode() bool {
// https://www.kernel.org/doc/Documentation/cgroup-v1/cgroups.txt
func FindCgroupMountpoint(cgroupPath, subsystem string) (string, error) {
if IsCgroup2UnifiedMode() {
return unifiedMountpoint, nil
}
mnt, _, err := FindCgroupMountpointAndRoot(cgroupPath, subsystem)
return mnt, err
}
@ -235,8 +239,8 @@ func GetCgroupMounts(all bool) ([]Mount, error) {
return nil, err
}
m := Mount{
Mountpoint: "/sys/fs/cgroup",
Root: "/sys/fs/cgroup",
Mountpoint: unifiedMountpoint,
Root: unifiedMountpoint,
Subsystems: availableControllers,
}
return []Mount{m}, nil
@ -262,6 +266,21 @@ func GetCgroupMounts(all bool) ([]Mount, error) {
// GetAllSubsystems returns all the cgroup subsystems supported by the kernel
func GetAllSubsystems() ([]string, error) {
// /proc/cgroups is meaningless for v2
// https://github.com/torvalds/linux/blob/v5.3/Documentation/admin-guide/cgroup-v2.rst#deprecated-v1-core-features
if IsCgroup2UnifiedMode() {
// "pseudo" controllers do not appear in /sys/fs/cgroup/cgroup.controllers.
// - devices: implemented in kernel 4.15
// - freezer: implemented in kernel 5.2
// We assume these are always available, as it is hard to detect availability.
pseudo := []string{"devices", "freezer"}
data, err := ioutil.ReadFile("/sys/fs/cgroup/cgroup.controllers")
if err != nil {
return nil, err
}
subsystems := append(pseudo, strings.Fields(string(data))...)
return subsystems, nil
}
f, err := os.Open("/proc/cgroups")
if err != nil {
return nil, err