We can't use GFP_KERNEL inside rcu_read_lock().
Signed-off-by: NTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>