Function OptionalSwap

cgroup1/memory.go:180–187

OptionalSwap allows the memory controller to not fail if cgroups is not accounting Swap memory (there are no memory.memsw.* entries)

()

// OptionalSwap allows the memory controller to not fail if cgroups is not accounting
// Swap memory (there are no memory.memsw.* entries)
func OptionalSwap() func(*memoryController) {
	return func(mc *memoryController) {
		_, err := os.Stat(filepath.Join(mc.root, "memory.memsw.usage_in_bytes"))
		if os.IsNotExist(err) {
			mc.ignored["memsw"] = struct{}{}
		}
	}
}

type memoryController struct {
	root    string