linux-kernel - Re: [PATCH tip/core/rcu 36/41] cgroups: Replace synchronize_sched() with synchronize

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Message-ID: <20181113155001.GJ2509588@devbig004.ftw2.facebook.com>
Date:   Tue, 13 Nov 2018 07:50:01 -0800
From:   Tejun Heo <tj@...nel.org>
To:     "Paul E. McKenney" <paulmck@...ux.ibm.com>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        Jens Axboe <axboe@...nel.dk>, Dennis Zhou <dennis@...nel.org>,
        Johannes Weiner <hannes@...xchg.org>,
        "Dennis Zhou (Facebook)" <dennisszhou@...il.com>
Subject: Re: [PATCH tip/core/rcu 36/41] cgroups: Replace synchronize_sched()
 with synchronize_rcu()

On Sun, Nov 11, 2018 at 11:44:05AM -0800, Paul E. McKenney wrote:
> Now that synchronize_rcu() waits for preempt-disable regions of code
> as well as RCU read-side critical sections, synchronize_sched() can be
> replaced by synchronize_rcu().  This commit therefore makes this change,
> even though it is but a comment.
> 
> Signed-off-by: Paul E. McKenney <paulmck@...ux.ibm.com>
> Cc: Tejun Heo <tj@...nel.org>
> Cc: Jens Axboe <axboe@...nel.dk>
> Cc: Dennis Zhou <dennis@...nel.org>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: "Dennis Zhou (Facebook)" <dennisszhou@...il.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun