linux-kernel - Re: [PATCH] llist: Fix missing lockless

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Message-ID: <CAEdQ38FENfS2V-=Wu1fUsHMsoMWa1WWtoUm6i1HmEBfmTqTy3g@mail.gmail.com>
Date:	Sat, 7 Feb 2015 16:18:14 -0800
From:	Matt Turner <mattst88@...il.com>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	linux-alpha <linux-alpha@...r.kernel.org>,
	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Huang Ying <ying.huang@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	David Howells <dhowells@...hat.com>,
	Pranith Kumar <bobby.prani@...il.com>, stable@...r.kernel.org
Subject: Re: [PATCH] llist: Fix missing lockless_dereference()

On Sat, Feb 7, 2015 at 2:30 PM, Mathieu Desnoyers
<mathieu.desnoyers@...icios.com> wrote:
> ----- Original Message -----
>> From: "Greg KH" <gregkh@...uxfoundation.org>
>> To: "Mathieu Desnoyers" <mathieu.desnoyers@...icios.com>
>> Cc: "Huang Ying" <ying.huang@...el.com>, linux-kernel@...r.kernel.org, "Paul McKenney" <paulmck@...ux.vnet.ibm.com>,
>> "David Howells" <dhowells@...hat.com>, "Pranith Kumar" <bobby.prani@...il.com>, stable@...r.kernel.org
>> Sent: Saturday, February 7, 2015 5:16:25 PM
>> Subject: Re: [PATCH] llist: Fix missing lockless_dereference()
>>
>> On Fri, Feb 06, 2015 at 09:08:21PM -0500, Mathieu Desnoyers wrote:
>> > A lockless_dereference() appears to be missing in llist_del_first().
>> > It should only matter for Alpha in practice.
>>
>> Meta-comment, do we really care about Alpha anymore?  Is it still
>> consered an "active" arch we support?  I haven't seen a single
>> alpha-related stable patch in _years_ if at all, which implies to me
>> that no one is even using it.
>>
>> Not that stable patches for architectures are a valid reference for how
>> much they are used, but it does give me a good indication of what arches
>> have users that actually care about a modern (i.e. within the past 5
>> years) kernel.
>
> Good question. Adding the Alpha maintainers to the CC.
>
> Thanks,
>
> Mathieu

Hello,

Yes, Gentoo has a maintained Alpha port. We care about having modern
kernels (though I have not personally had a lot of time to work on
that recently)

Thanks,
Matt
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