kernel-hacking-2024-linux-s.../Documentation/device-mapper
Milan Broz d1f9642381 dm crypt: add multi key capability
This patch adds generic multikey handling to be used
in following patch for Loop-AES mode compatibility.

This patch extends mapping table to optional keycount and
implements generic multi-key capability.

With more keys defined the <key> string is divided into
several <keycount> sections and these are used for tfms.

The tfm is used according to sector offset
(sector 0->tfm[0], sector 1->tfm[1], sector N->tfm[N modulo keycount])
(only power of two values supported for keycount here).

Because of tfms per-cpu allocation, this mode can be take
a lot of memory on large smp systems.

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Max Vozeler <max@hinterhof.net>
2011-01-13 19:59:54 +00:00
..
delay.txt
dm-crypt.txt dm crypt: add multi key capability 2011-01-13 19:59:54 +00:00
dm-io.txt
dm-log.txt dm raid1: add userspace log 2009-06-22 10:12:35 +01:00
dm-queue-length.txt dm mpath: add queue length load balancer 2009-06-22 10:12:27 +01:00
dm-service-time.txt dm mpath: add service time load balancer 2009-06-22 10:12:28 +01:00
dm-uevent.txt dm: uevent generate events 2007-10-20 02:01:26 +01:00
kcopyd.txt
linear.txt
snapshot.txt dm: document when snapshot has finished merging 2010-03-06 02:29:56 +00:00
striped.txt
zero.txt