linux-kernel - Re: [PATCH v2 0/2] add support for new persistent memory instructions

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Message-ID: <20150126223954.GJ1656@pd.tnic>
Date:	Mon, 26 Jan 2015 23:39:54 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc:	"H. Peter Anvin" <h.peter.anvin@...el.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v2 0/2] add support for new persistent memory instructions

On Mon, Jan 26, 2015 at 02:50:07PM -0700, Ross Zwisler wrote:
> We can use MFENCE, but I don't think we need to. With SFENCE we will
> be ordered with respect to stores, and the flushes and pcommit will be
> ordered with respect to one another. I think you can sprinkle in loads
> anywhere you want in that flow and everything will work.


Ok, maybe we should hold down that sequence and this somewhere as a
this-is-how-you-should-do-pcommit-properly explanation or so... or do
you have an actual patch adding write_and_commit_buffer()?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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