From: Peter Zijlstra <peterz@infradead.org>
To: 焦晓冬 <milestonejxd@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>,
linux-kernel@vger.kernel.org,
Alan Stern <stern@rowland.harvard.edu>,
will.deacon@arm.com, torvalds@linux-foundation.org,
npiggin@gmail.com, mingo@kernel.org, mpe@ellerman.id.au,
oleg@redhat.com, benh@kernel.crashing.org,
Paul McKenney <paulmck@linux.vnet.ibm.com>
Subject: Re: smp_mb__after_spinlock requirement too strong?
Date: Mon, 12 Mar 2018 14:31:35 +0100 [thread overview]
Message-ID: <20180312133135.GJ4064@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAJDTihyP96H6XTh5M17uMbMHxz8YjFZ89u0YsBGsRpR+BaEU_Q@mail.gmail.com>
On Mon, Mar 12, 2018 at 05:13:03PM +0800, 焦晓冬 wrote:
> If the fixed comment could point out where this RCsc is used, it will be great.
The one that comes to mind first is RCU-sched, that relies on a context
switch implying a full smp_mb(). But I think there's more..
next prev parent reply other threads:[~2018-03-12 13:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-11 7:55 smp_mb__after_spinlock requirement too strong? 焦晓冬
2018-03-12 5:44 ` Boqun Feng
2018-03-12 8:18 ` 焦晓冬
2018-03-12 8:56 ` Boqun Feng
2018-03-12 8:56 ` Peter Zijlstra
2018-03-12 9:13 ` 焦晓冬
2018-03-12 13:31 ` Peter Zijlstra [this message]
2018-03-12 13:24 ` Andrea Parri
2018-03-12 14:10 ` 焦晓冬
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