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  • Tejun Heo's avatar
    cgroup: remove css_parent() · 5c9d535b
    Tejun Heo authored
    cgroup in general is moving towards using cgroup_subsys_state as the
    fundamental structural component and css_parent() was introduced to
    convert from using cgroup->parent to css->parent.  It was quite some
    time ago and we're moving forward with making css more prominent.
    This patch drops the trivial wrapper css_parent() and let the users
    dereference css->parent.  While at it, explicitly mark fields of css
    which are public and immutable.
    v2: New usage from device_cgroup.c converted.
    Signed-off-by: default avatarTejun Heo <>
    Acked-by: default avatarMichal Hocko <>
    Acked-by: default avatarNeil Horman <>
    Acked-by: default avatar"David S. Miller" <>
    Acked-by: default avatarLi Zefan <>
    Cc: Vivek Goyal <>
    Cc: Jens Axboe <>
    Cc: Peter Zijlstra <>
    Cc: Johannes Weiner <>
device_cgroup.c 21.2 KB