linux-kernel - Re: call_function_many: fix list delete vs add race

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Message-ID: <1296541083.2349.337.camel@pasglop>
Date:	Tue, 01 Feb 2011 17:18:03 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	paulmck@...ux.vnet.ibm.com, Peter Zijlstra <peterz@...radead.org>,
	Milton Miller <miltonm@....com>, akpm@...ux-foundation.org,
	Anton Blanchard <anton@...ba.org>,
	xiaoguangrong@...fujitsu.com, mingo@...e.hu, jaxboe@...ionio.com,
	npiggin@...il.com, rusty@...tcorp.com.au,
	linux-kernel@...r.kernel.org
Subject: Re: call_function_many: fix list delete vs add race

On Tue, 2011-02-01 at 15:46 +1000, Linus Torvalds wrote:
> 
> Quite frankly, the POWER case is made worse by the fact that the
> synchronization primitives have this total confusion about "pipeline"
> synchronization due to historical implementation oddities etc. Talk
> about crazy. The whole "isync" vs "sync" vs "lwsync" thing is just an
> embarrassment. But this is, after all, a company that ran out of
> vowels in instruction naming, so I guess their misleading and confused
> naming for memory ordering is just par for the course.

You forgot eieio, that's where all the vowels go !

Cheers,
Ben.

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