linux-kernel - Re: [PATCH 17/19] locking/barriers: Kill lockless

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Message-ID: <20171024102336.GF17909@arm.com>
Date:   Tue, 24 Oct 2017 11:23:37 +0100
From:   Will Deacon <will.deacon@....com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mark.rutland@....com, snitzer@...hat.com,
        thor.thayer@...ux.intel.com, viro@...iv.linux.org.uk,
        davem@...emloft.net, shuah@...nel.org, mpe@...erman.id.au,
        tj@...nel.org, torvalds@...ux-foundation.org
Subject: Re: [PATCH 17/19] locking/barriers: Kill lockless_dereference

On Tue, Oct 24, 2017 at 11:54:28AM +0200, Ingo Molnar wrote:
> * Will Deacon <will.deacon@....com> wrote:
> > On Tue, Oct 24, 2017 at 11:31:04AM +0200, Ingo Molnar wrote:
> > > Also, could we please split this into three patches:
> > > 
> > >  #1: Add smp_read_barrier_depends() to READ_ONCE()
> > >  #2: Convert all lockless_dereference() users to READ_ONCE()
> > >  #3: Remove the now unused lockless_dereference() API
> > > 
> > > to make it easier to analyze if bisected to, should any problems arise?
> > 
> > Sure, I'll do that now.
> 
> Thanks!

https://lkml.org/lkml/2017/10/24/323

Will