From: Davidlohr Bueso <dbueso@suse.de>
To: Prateek Sood <prsood@codeaurora.org>
Cc: peterz@infradead.org, mingo@redhat.com,
linux-kernel@vger.kernel.org, sramana@codeaurora.org
Subject: Re: [PATCH] percpu_rwsem: fix missed wakeup due to reordering of load
Date: Wed, 12 Dec 2018 07:31:55 -0800 [thread overview]
Message-ID: <aa864e194ee4c987b7e2025d1fe6e88b@suse.de> (raw)
In-Reply-To: <a0008e63-0a97-5962-1a92-7770b9347397@codeaurora.org>
On 2018-12-12 06:26, Prateek Sood wrote:
> Please confirm if the suspicion of smp_rmb is correct.
> IMO, it should be smp_mb() translating to dmb ish.
Feel free to add my ack. This should also be Cc to stable as of v4.11.
Fixes: 8f95c90ceb54 (sched/wait, RCU: Introduce rcuwait machinery)
Thanks,
Davidlohr
next prev parent reply other threads:[~2018-12-12 15:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-30 15:10 [PATCH] percpu_rwsem: fix missed wakeup due to reordering of load Prateek Sood
2018-12-03 6:38 ` Davidlohr Bueso
2018-12-03 19:36 ` Prateek Sood
2018-12-12 14:26 ` Prateek Sood
2018-12-12 15:31 ` Davidlohr Bueso [this message]
2018-12-21 7:29 ` Prateek Sood
2018-12-21 9:45 ` Andrea Parri
2018-12-12 15:28 ` Andrea Parri
2018-12-21 6:35 ` Prateek Sood
2019-01-21 11:25 ` [tip:locking/core] sched/wait: Fix rcuwait_wake_up() ordering tip-bot for Prateek Sood
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