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History log of /src/sys/dev/dm/TODO
RevisionDateAuthorComments
 1.6  05-Dec-2009  haad Remove wrong TODO item, it violates abstraction between kernel-libdevmapper
and lvm tools.
 1.5  13-Apr-2009  haad branches: 1.5.2;
Update to reality.
 1.4  02-Jan-2009  haad branches: 1.4.2; 1.4.4; 1.4.6;
Add more tasks and add more details about them.
 1.3  22-Dec-2008  haad Remove done task and add new one.
 1.2  19-Dec-2008  haad Merge the haad-dm branch to -current. This branch adds LVM functionality to
the base NetBSD system. It uses Linux LVM2 tools and our BSD licensed
device-mapper driver.

The device-mapper driver can be used to create virtual block devices which
maps virtual blocks to real with target mapping called target. Currently
these targets are available a linear, zero, error and a snapshot (this is
work in progress and doesn't work yet).

The lvm2tools adds lvm and dmsetup binary to based system, where the lvm
tool is used to manage and administer whole LVM and the dmestup is used to
communicate iwith device-mapper kernel driver. With these tools also
a libdevmapper library is instaled to the base system.

Building of tools and driver is currently disable and can be enabled with
MKLVM=yes in mk.conf. I will add sets lists and rc.d script soon.

Oked by agc@ and cube@.
 1.1  11-Jul-2008  haad branches: 1.1.2;
Add dmgetdefaultdisklabel to get virtual disklabel for Logical Volume device. Add snapshot targets (snapshot, snapshot-origin), add dm_type to dm_dev structure to identify type of device. e.g. we can have mirrored disk device with snapshot on them and spare disk on them. When driver want to work with snapshot devices, it looks to upcalls list and finds all DM_SNAPSHOT devices.
 1.1.2.3  02-Nov-2008  haad Change TODO file add some new tasks for inspiration.
 1.1.2.2  16-Oct-2008  haad Rewrite locking in dm driver for last time. Replace rwlock with mutex/cv.
Move table lists to separate structure called table_head and access them
through dm_table interface. Thx go@, rmind@ and Dusan Bernat for help and
suggestions.
 1.1.2.1  11-Jul-2008  haad I have forgot to add these two files.
 1.4.6.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.4.4.3  28-Apr-2009  skrll Sync with HEAD.
 1.4.4.2  19-Jan-2009  skrll Sync with HEAD.
 1.4.4.1  02-Jan-2009  skrll file TODO was added on branch nick-hppapmap on 2009-01-19 13:17:52 +0000
 1.4.2.2  17-Jan-2009  mjf Sync with HEAD.
 1.4.2.1  02-Jan-2009  mjf file TODO was added on branch mjf-devfs2 on 2009-01-17 13:28:53 +0000
 1.5.2.3  11-Mar-2010  yamt sync with head
 1.5.2.2  04-May-2009  yamt sync with head.
 1.5.2.1  13-Apr-2009  yamt file TODO was added on branch yamt-nfs-mp on 2009-05-04 08:12:36 +0000

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