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

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Message-ID: <20150207221625.GB31119@kroah.com>
Date:	Sun, 8 Feb 2015 06:16:25 +0800
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
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.

thanks,

greg k-h
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