linux-kernel - Re: [PATCH v14 for 4.1] sys_membarrier(): system-wide memory barrier (x86)

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Message-ID: <alpine.DEB.2.11.1504142305160.3845@nanos>
Date:	Tue, 14 Apr 2015 23:05:56 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Josh Triplett <josh@...htriplett.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Nicholas Miell <nmiell@...cast.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>,
	Alan Cox <gnomes@...rguk.ukuu.org.uk>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Stephen Hemminger <stephen@...workplumber.org>,
	Peter Zijlstra <peterz@...radead.org>,
	David Howells <dhowells@...hat.com>
Subject: Re: [PATCH v14 for 4.1] sys_membarrier(): system-wide memory barrier
 (x86)

On Tue, 14 Apr 2015, Mathieu Desnoyers wrote:
> If we go for a single active flag at a time, I would call that
> "cmd" rather than "flags". Each command would be a power
> of two. Only one cmd could be passed as argument (no "or" mask).
> QUERY would return a mask of the supported commands.

That's what I told you, except that I named it opmode :)

Thanks,

	tglx

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