linux-kernel - Re: [PATCH v3 0/6] pmem api, generic ioremap

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Message-ID: <CAPcyv4g4PzhWR3O=15SVmhSdE8TAbiXzcjS5JvcGzJaKGW=_Xg@mail.gmail.com>
Date:	Wed, 3 Jun 2015 14:38:32 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Juergen Gross <jgross@...e.com>, X86 ML <x86@...nel.org>,
	"Kani, Toshimitsu" <toshi.kani@...com>,
	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Luis Rodriguez <mcgrof@...e.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stefan Bader <stefan.bader@...onical.com>,
	Andy Lutomirski <luto@...capital.net>, linux-mm@...ck.org,
	geert@...ux-m68k.org, ralf@...ux-mips.org,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	mpe@...erman.id.au, Tejun Heo <tj@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v3 0/6] pmem api, generic ioremap_cache, and memremap

On Wed, Jun 3, 2015 at 2:34 PM, Dan Williams <dan.j.williams@...el.com> wrote:
> The pmem api is responsible for shepherding data out to persistent
> media.  The pmem driver uses this api, when available, to assert that
> data is durable by the time bio_endio() is invoked.  When an
> architecture or cpu can not make persistence guarantees the driver warns
> and falls back to "best effort" implementation.
>
> Changes since v2 [1]:

[1]: https://lists.01.org/pipermail/linux-nvdimm/2015-May/000987.html
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