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    cgroup: Display legacy cgroup files on default hierarchy · fa8137be
    Vivek Goyal 提交于
    Kernel command line parameter cgroup__DEVEL__legacy_files_on_dfl forces
    legacy cgroup files to show up on default hierarhcy if susbsystem does
    not have any files defined for default hierarchy.
    
    But this seems to be working only if legacy files are defined in
    ss->legacy_cftypes. If one adds some cftypes later using
    cgroup_add_legacy_cftypes(), these files don't show up on default
    hierarchy.  Update the function accordingly so that the dynamically
    added legacy files also show up in the default hierarchy if the target
    subsystem is also using the base legacy files for the default
    hierarchy.
    
    tj: Patch description and comment updates.
    Signed-off-by: NVivek Goyal <vgoyal@redhat.com>
    Signed-off-by: NTejun Heo <tj@kernel.org>
    fa8137be
cgroup.c 150.5 KB