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From:   Jeff Moyer <jmoyer@redhat.com>
To:     Dave Hansen <dave.hansen@linux.intel.com>
Cc:     dave@sr71.net, thomas.lendacky@amd.com, mhocko@suse.com,
        linux-nvdimm@lists.01.org, tiwai@suse.de, ying.huang@intel.com,
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        baiyaowei@cmss.chinamobile.com, zwisler@kernel.org,
        bhelgaas@google.com, fengguang.wu@intel.com,
        akpm@linux-foundation.org
Subject: Re: [PATCH 0/4] Allow persistent memory to be used like normal RAM
References: <20190116181859.D1504459@viggo.jf.intel.com>
Date:   Thu, 17 Jan 2019 11:29:10 -0500
In-Reply-To: <20190116181859.D1504459@viggo.jf.intel.com> (Dave Hansen's
        message of "Wed, 16 Jan 2019 10:18:59 -0800")
Message-ID: <x49sgxr9rjd.fsf@segfault.boston.devel.redhat.com>
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Dave Hansen <dave.hansen@linux.intel.com> writes:

> Persistent memory is cool.  But, currently, you have to rewrite
> your applications to use it.  Wouldn't it be cool if you could
> just have it show up in your system like normal RAM and get to
> it like a slow blob of memory?  Well... have I got the patch
> series for you!

So, isn't that what memory mode is for?
  https://itpeernetwork.intel.com/intel-optane-dc-persistent-memory-operating-modes/

Why do we need this code in the kernel?

-Jeff