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cgroup, doc: make cgroup_disable doc more accurate

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In doc, it said that 'Currently supported controllers - "memory"',
but actually we can use cgroup_disable=cpu,cpuset and all other
controllers, so this is confusing for cgroup users without much
cgroup knowledge. We need to make it clear.

[some comments copied from Paul Menage's original patch 8bab8dded]

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Qiang Huang 2013-11-06 13:18:09 -08:00 committed by Jiri Kosina
parent ac6d662a95
commit ca0bdbb5fd
1 changed files with 8 additions and 1 deletions
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9
Documentation/kernel-parameters.txt
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@ -511,7 +511,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
cgroup_disable= [KNL] Disable a particular controller
Format: {name of the controller(s) to disable}
{Currently supported controllers - "memory"}
The effects of cgroup_disable=foo are:
- foo isn't auto-mounted if you mount all cgroups in
a single hierarchy
- foo isn't visible as an individually mountable
subsystem
{Currently only "memory" controller deal with this and
cut the overhead, others just disable the usage. So
only cgroup_disable=memory is actually worthy}
checkreqprot [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }