drivers: lustre: obdclass: simplify unregister_shrinker() usage
lu_global_fini() explicitly uses knowledge about shrinker's internals to make decision about calling of unregister_shrinker(). Now this check was integrated into unregister_shrinker(), so it is safe to call it against unregistered shrinker. Signed-off-by: NAliaksei Karaliou <akaraliou.dev@gmail.com> Reviewed-by: NAndreas Dilger <andreas.dilger@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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