From 82ec5cb0360418dba8df3294b2e54c758dbe8564 Mon Sep 17 00:00:00 2001
From: Michael Crosby <michael@crosbymichael.com>
Date: Tue, 3 Jun 2014 15:15:11 -0700
Subject: [PATCH] Don't rejoin the cgroup each time
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com>
(github: crosbymichael)
---
libcontainer/cgroups/fs/freezer.go | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/libcontainer/cgroups/fs/freezer.go b/libcontainer/cgroups/fs/freezer.go
index ed57f8b..432018f 100644
--- a/libcontainer/cgroups/fs/freezer.go
+++ b/libcontainer/cgroups/fs/freezer.go
@@ -12,18 +12,20 @@ type freezerGroup struct {
}
func (s *freezerGroup) Set(d *data) error {
- dir, err := d.join("freezer")
- if err != nil {
- if err != cgroups.ErrNotFound {
+ switch d.c.Freezer {
+ case cgroups.Frozen, cgroups.Thawed:
+ dir, err := d.path("freezer")
+ if err != nil {
return err
}
- return nil
- }
- if d.c.Freezer != cgroups.Undefined {
if err := writeFile(dir, "freezer.state", string(d.c.Freezer)); err != nil {
return err
}
+ default:
+ if _, err := d.join("freezer"); err != nil && err != cgroups.ErrNotFound {
+ return err
+ }
}
return nil