From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alasdair G Kergon <agk@redhat.com>
Subject: Re: [PATCH] reworked dm-switch target
Date: Tue, 21 Aug 2012 19:14:32 +0100
Message-ID: <20120821181432.GA32051@agk-dp.fab.redhat.com>
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Cc: Mikulas Patocka <mpatocka@redhat.com>, Jason_Shamberger@dell.com, Kevin_OKelley@dell.com
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Well my order of preference for the interface at the moment would be:
  ioctl: ASCII dm messages
  ioctl: binary dm messages   (i.e. the message content is treated as a binary blob)
  mmap: lookups in shared memory (lockless preferably)
  netlink

Alasdair