From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Wed, 8 Apr 2009 23:27:12 +0000 (+0100)
Subject: dm: add integrity support
X-Git-Tag: v2.6.30-rc2~104^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c47008d13add50ec4597a8b9eee200c515282c8;p=pandora-kernel.git

dm: add integrity support

This patch provides support for data integrity passthrough in the device
mapper.

 - If one or more component devices support integrity an integrity
   profile is preallocated for the DM device.

 - If all component devices have compatible profiles the DM device is
   flagged as capable.

 - Handle integrity metadata when splitting and cloning bios.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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