Bug 1394049 - [RFE] dm-integrity: A target that stores extra data with each block
Summary: [RFE] dm-integrity: A target that stores extra data with each block
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: LVM and device-mapper
Classification: Community
Component: device-mapper
Version: unspecified
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: ---
Assignee: Mikuláš Patočka
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On:
Blocks: 1394039 1406501
TreeView+ depends on / blocked
 
Reported: 2016-11-10 22:00 UTC by Jonathan Earl Brassow
Modified: 2017-07-28 03:17 UTC (History)
6 users (show)

Fixed In Version:
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Clone Of:
: 1406501 (view as bug list)
Environment:
Last Closed: 2017-07-28 03:17:28 UTC
rule-engine: lvm-technical-solution?

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Description Jonathan Earl Brassow 2016-11-10 22:00:31 UTC 
dm-integrity is a device-mapper target that can emulate the DIF/DIX feature present in some storage devices.  It can store an extra bit of information with each block written and do so atomically.

dm-integrity is a necessary component of 'authenticated data integrity' in encryption applications, as well as other uses.
Comment 1 Jonathan Earl Brassow 2017-07-28 03:17:28 UTC 
upstream in kernel 4.12.
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