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libct/cg: IsCgroup2HybridMode: don't panic #3433

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Mar 28, 2022
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libct/cg: IsCgroup2HybridMode: don't panic #3433

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10 changes: 5 additions & 5 deletions libcontainer/cgroups/utils.go
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Original file line number Diff line number Diff line change
Expand Up @@ -55,12 +55,12 @@ func IsCgroup2HybridMode() bool {
var st unix.Statfs_t
err := unix.Statfs(hybridMountpoint, &st)
if err != nil {
if os.IsNotExist(err) {
// ignore the "not found" error
isHybrid = false
return
isHybrid = false
if !os.IsNotExist(err) {
// Report unexpected errors.
logrus.WithError(err).Debugf("statfs(%q) failed", hybridMountpoint)
}
panic(fmt.Sprintf("cannot statfs cgroup root: %s", err))
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return
}
isHybrid = st.Type == unix.CGROUP2_SUPER_MAGIC
})
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