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c655a5b636
when the systemd cgroup manager is used, controllers not handled by systemd are created manually afterwards. libcontainer didn't correctly cleanup these cgroups that were leaked on cgroup v1. Closes: https://github.com/kubernetes/kubernetes/issues/92766 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
17 lines
322 B
Go
17 lines
322 B
Go
package internal
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import "errors"
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// DiscardZeroes makes sure that all written bytes are zero
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// before discarding them.
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type DiscardZeroes struct{}
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func (DiscardZeroes) Write(p []byte) (int, error) {
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for _, b := range p {
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if b != 0 {
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return 0, errors.New("encountered non-zero byte")
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}
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}
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return len(p), nil
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}
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