Always use cgroup root of current process

LK4D4 · LK4D4 · commit 2b28b3c2769c · 2015-08-11T18:04:59.000-07:00
Because for host PID namespace /proc/1/cgroup can point to whole other
world of cgroups.

Signed-off-by: Alexander Morozov &lt;lk4d4@docker.com&gt;
diff --git a/libcontainer/cgroups/fs/apply_raw.go b/libcontainer/cgroups/fs/apply_raw.go
@@ -236,7 +236,7 @@ func getCgroupData(c *configs.Cgroup, pid int) (*data, error) {
 }
 
 func (raw *data) parent(subsystem, mountpoint, src string) (string, error) {
-	initPath, err := cgroups.GetInitCgroupDir(subsystem)
+	initPath, err := cgroups.GetThisCgroupDir(subsystem)
 	if err != nil {
 		return "", err
 	}

Original file line number	Diff line number	Diff line change
`@@ -236,7 +236,7 @@ func getCgroupData(c configs.Cgroup, pid int) (data, error) {`
`236`	`236`	`}`
`237`	`237`
`238`	`238`	`func (raw *data) parent(subsystem, mountpoint, src string) (string, error) {`
`239`		`- initPath, err := cgroups.GetInitCgroupDir(subsystem)`
	`239`	`+ initPath, err := cgroups.GetThisCgroupDir(subsystem)`
`240`	`240`	`if err != nil {`
`241`	`241`	`return "", err`
`242`	`242`	`}`