cgroups.7: Mention cgroup.sane_behavior file

The cgroup.sane_behavior file returns the hard-coded value "0" and
is kept for legacy purposes. Mention this in the man-page.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Marcus Gelderie 2019-01-25 22:21:23 +01:00 committed by Michael Kerrisk
parent 4e2b112c91
commit 8f0b7d765d
1 changed files with 4 additions and 0 deletions

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@ -87,6 +87,10 @@ Initially marked experimental, and hidden behind the
mount option, the new version (cgroups version 2)
was eventually made official with the release of Linux 4.5.
Differences between the two versions are described in the text below.
The file
.IR cgroup.sane_behavior ,
present in cgroups v1, is a relic of this mount option. The file
always reports "0" and is only retained for backward compatibility.
.PP
Although cgroups v2 is intended as a replacement for cgroups v1,
the older system continues to exist