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libct/cgroups/fs/cpuset: don't use MkdirAll

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Here, we always create a parent directory, so using MkdirAll
is redundant. Use Mkdir instead.

One difference between MkdirAll and Mkdir is the former ignores
EEXIST, and since we sometimes try to create a directory that
already exists, we need to explicitly ignore that.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin
2020-11-27 02:20:05 -08:00
parent c85cd2b325
commit 9f2153c68a
1 changed files with 2 additions and 2 deletions
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libcontainer/cgroups/fs/cpuset.go
+2 -2
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@@ -53,7 +53,7 @@ func (s *CpusetGroup) ApplyDir(dir string, cgroup *configs.Cgroup, pid int) erro
if err := cpusetEnsureParent(filepath.Dir(dir)); err != nil {
return err
}
if err := os.MkdirAll(dir, 0755); err != nil {
if err := os.Mkdir(dir, 0755); err != nil && !os.IsExist(err) {
return err
}
// We didn't inherit cpuset configs from parent, but we have
@@ -103,7 +103,7 @@ func cpusetEnsureParent(current string) error {
if err := cpusetEnsureParent(parent); err != nil {
return err
}
if err := os.MkdirAll(current, 0755); err != nil {
if err := os.Mkdir(current, 0755); err != nil && !os.IsExist(err) {
return err
}
return cpusetCopyIfNeeded(current, parent)