After commit:

  82958366 ("sched: Replace update_shares weight distribution with per-entity computation")

tg_unthrottle_up() did not update the weight.
Signed-off-by: NLi RongQing <lirongqing@baidu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/lkml/1523423816-18322-1-git-send-email-lirongqing@baidu.comSigned-off-by: NIngo Molnar <mingo@kernel.org>