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libct/cgroups: use errors.Unwrap 

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This commit is contained in:
Kir Kolyshkin 2020-03-31 20:00:11 -07:00
parent bd737f1e94
commit 272c83e169
1 changed files with 1 additions and 10 deletions
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11
libcontainer/cgroups/utils.go
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@ -576,7 +576,7 @@ func WriteCgroupProc(dir string, pid int) error {
// EINVAL might mean that the task being added to cgroup.procs is in state
// TASK_NEW. We should attempt to do so again.
if isEINVAL(err) {
if errors.Unwrap(err) == unix.EINVAL {
time.Sleep(30 * time.Millisecond)
continue
}
@ -586,15 +586,6 @@ func WriteCgroupProc(dir string, pid int) error {
return err
}
func isEINVAL(err error) bool {
switch err := err.(type) {
case *os.PathError:
return err.Err == unix.EINVAL
default:
return false
}
}
// Since the OCI spec is designed for cgroup v1, in some cases
// there is need to convert from the cgroup v1 configuration to cgroup v2
// the formula for BlkIOWeight is y = (1 + (x - 10) * 9999 / 990)