linux-kernel - [RFC][PATCH 0/5] Getting rid of smp_mb__before

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Message-Id: <20170607161501.819948352@infradead.org>
Date:   Wed, 07 Jun 2017 18:15:01 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     torvalds@...ux-foundation.org, will.deacon@....com,
        oleg@...hat.com, paulmck@...ux.vnet.ibm.com,
        benh@...nel.crashing.org, mpe@...erman.id.au, npiggin@...il.com
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org,
        stern@...land.harvard.edu, peterz@...radead.org
Subject: [RFC][PATCH 0/5] Getting rid of smp_mb__before_spinlock

There was a thread on this somewhere about a year ago, I finally remembered to
finish this :-)

This series removes two smp_mb__before_spinlock() (ab)users and converts the
scheduler to use smp_mb__after_spinlock(), which provides more guarantees with
the same amount of barriers.