It is sufficient to check if @task is frozen, and no need to check if the
original freezer is frozen.
Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
Acked-by: NCedric Le Goater <clg@fr.ibm.com>
Acked-by: NMatt Helsley <matthltc@us.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>