| package libcontainerd |
| |
| import ( |
| "fmt" |
| "os" |
| "strconv" |
| |
| "github.com/Sirupsen/logrus" |
| "github.com/opencontainers/runc/libcontainer/system" |
| ) |
| |
| func setOOMScore(pid, score int) error { |
| oomScoreAdjPath := fmt.Sprintf("/proc/%d/oom_score_adj", pid) |
| f, err := os.OpenFile(oomScoreAdjPath, os.O_WRONLY, 0) |
| if err != nil { |
| return err |
| } |
| stringScore := strconv.Itoa(score) |
| _, err = f.WriteString(stringScore) |
| f.Close() |
| if os.IsPermission(err) { |
| // Setting oom_score_adj does not work in an |
| // unprivileged container. Ignore the error, but log |
| // it if we appear not to be in that situation. |
| if !system.RunningInUserNS() { |
| logrus.Debugf("Permission denied writing %q to %s", stringScore, oomScoreAdjPath) |
| } |
| return nil |
| } |
| return err |
| } |
