linux-kernel - Re: [RFC][PATCH] mips: Fix arch_spin

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Date:	Tue, 02 Feb 2016 15:51:17 +0000
From:	Måns Rullgård <mans@...sr.com>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Will Deacon <will.deacon@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	"Maciej W. Rozycki" <macro@...tec.com>,
	David Daney <ddaney@...iumnetworks.com>,
	James Hogan <james.hogan@...tec.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH] mips: Fix arch_spin_unlock()

Ralf Baechle <ralf@...ux-mips.org> writes:

> On Tue, Feb 02, 2016 at 02:54:06PM +0000, Måns Rullgård wrote:
>
>> We don't really have much choice given the reality of existing hardware.
>
> No, of course not - but I want us discourage new weakly ordered
> platforms as much as possible.

Where do you draw the line though?  You can't exactly go and impose some
kind of global ordering in a multi-master system.

-- 
Måns Rullgård