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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-10-07 13:52:19 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-10-08 14:08:23 +0200 |
| commit | 31ec2a5cf7c7b71f7edec89a5d8dd3e14226f2a4 (patch) | |
| tree | 2fd2681b43f1858d82fa0bc47d80911e1373870a | |
| parent | 15ce4b0caef98281581ce547e6d990088a82da68 (diff) | |
| download | man-pages-31ec2a5cf7c7b71f7edec89a5d8dd3e14226f2a4.tar.gz | |
cgroups.7: A cgroup v1 controller can't be mounted against multiple hierarchies
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man7/cgroups.7 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/man7/cgroups.7 b/man7/cgroups.7 index 109f7c0895..12ebbd30d7 100644 --- a/man7/cgroups.7 +++ b/man7/cgroups.7 @@ -208,6 +208,20 @@ mount \-t cgroup \-o all cgroup /sys/fs/cgroup .IR "\-o all" , since it is the default if no controllers are explicitly specified.) +It is not possible to mount the same controller +against multiple cgroup hierarchies. +For example, it is not possible to mount both the +.I cpu +and +.I cpuacct +controllers against one hierarchy, and to mount the +.I cpu +controller alone against another hierarchy. +It is possible to create multiple mount points with exactly +the same set of comounted controllers. +However, in this case all that results is multiple mount points +providing a view of the same hierarchy. + Note that on many systems, the v1 controllers are automatically mounted under .IR /sys/fs/cgroup ; in particular, |