stable inclusion
from stable-5.10.9
commit 30b491e2b6cc669b23179809ea47314fcae24941
bugzilla: 47457

--------------------------------

[ Upstream commit 1b04fa99 ]

PowerPC testing encountered boot failures due to RCU Tasks not being
fully initialized until core_initcall() time.  This commit therefore
initializes RCU Tasks (along with Rude RCU and RCU Tasks Trace) just
before early_initcall() time, thus allowing waiting on RCU Tasks grace
periods from early_initcall() handlers.

Link: https://lore.kernel.org/rcu/87eekfh80a.fsf@dja-thinkpad.axtens.net/
Fixes: 36dadef2 ("kprobes: Init kprobes in early_initcall")
Tested-by: NDaniel Axtens <dja@axtens.net>
Signed-off-by: NUladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: NPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>