On Tue, Jun 25, 2019 at 13:16:21 +0200, Pavel Hrdina wrote: > This affects only cgroups v2 where enabled controllers are not based on > available mount points but on the list provided in cgroup.controllers > file. However, moving it will fill in placement as well, so it needs > to be freed together with mount point if we don't need that controller. > > Before this patch we were assuming that all controllers available in > root cgroup where available in all other sub-cgroups which was wrong. > > In order to fix it we need to move the cgroup controllers detection > after cgroup placement was prepared in order to build correct path for > cgroup.controllers file. > > Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx> > --- > > Notes: > Changes in v3: > - Moving the detection after placement means we need to free it > together with mount point if that controller is not required. ACK
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