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cgroup: document cgroup_no_v1= 

Add cgroup_no_v1= to kernel-parameters.txt, and a small blurb to
cgroup-v2.txt section about transitioning from cgroup to cgroup2.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
steinar/wifi_calib_4_9_kernel
Johannes Weiner 2016-02-16 13:21:14 -05:00 committed by Tejun Heo
parent 223ffb29f9
commit 1619b6d4fd
2 changed files with 11 additions and 0 deletions
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6
Documentation/cgroup-v2.txt
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@ -132,6 +132,12 @@ strongly discouraged for production use. It is recommended to decide
the hierarchies and controller associations before starting using the
controllers after system boot.
During transition to v2, system management software might still
automount the v1 cgroup filesystem and so hijack all controllers
during boot, before manual intervention is possible. To make testing
and experimenting easier, the kernel parameter cgroup_no_v1= allows
disabling controllers in v1 and make them always available in v2.
2-2. Organizing Processes

5
Documentation/kernel-parameters.txt
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@ -608,6 +608,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
cut the overhead, others just disable the usage. So
only cgroup_disable=memory is actually worthy}
cgroup_no_v1= [KNL] Disable one, multiple, all cgroup controllers in v1
Format: { controller[,controller...] | "all" }
Like cgroup_disable, but only applies to cgroup v1;
the blacklisted controllers remain available in cgroup2.
cgroup.memory= [KNL] Pass options to the cgroup memory controller.
Format: <string>
nosocket -- Disable socket memory accounting.