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From: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= <mans@mansr.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: [RFC][PATCH] mips: Fix arch_spin_unlock()
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Date: Tue, 02 Feb 2016 14:54:06 +0000
In-Reply-To: <20160202144932.GA30875@linux-mips.org> (Ralf Baechle's message
	of "Tue, 2 Feb 2016 15:49:32 +0100")
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Ralf Baechle <ralf@linux-mips.org> writes:

> On Tue, Feb 02, 2016 at 12:19:04AM -0800, Linus Torvalds wrote:
>
>> Memory ordering is confusing enough as it is. We should not make
>> people worry more than they already have to. Strong rules are good.
>
> Confusing and the resulting bugs can be very hard to debug.
>
> One of the problems I've experienced is that Linux does support liberal
> memory ordering, even as extreme as the Alpha.

We don't really have much choice given the reality of existing hardware.

-- 
Måns Rullgård