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Subject[PATCH] 2.5 version of device mapper submission
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The 2.5 port of device-mapper is available from:

bk://device-mapper.bkbits.net/2.5-stable

There are 6 changesets in here that are summarised at the end of this
email.

If you wish to use it you will need to install libdevmapper:

ftp://ftp.sistina.com/pub/LVM2/device-mapper/device-mapper-latest.tgz

and then either use dmsetup, or the LVM tools:

ftp://ftp.sistina.com/pub/LVM2/tools/LVM2.0-latest.tgz

Initial testing has been successful, though it hasn't been exercised
nearly as much as the stable 2.4 releases.

There is a chunk of ~50 lines in dm.c, which I have clearly labelled,
this is stop gap block splitting code that will be replaced with the
correct use of queue->merge_bvec_fn etc. However before I can make
this change there are a couple of other patches to the block layer
that I want to merge.

Since the feature freeze is looming I would appreciate it if this code
was merged now. Allowing me to patch/argue to get the extra
performance at my leisure. Good plan ?

Slightly more info available at: http://people.sistina.com/~thornber/

- Joe Thornber




ChangeSet@1.709, 2002-10-09 17:06:21+01:00, thornber@sistina.com
[mempool]
Most people use mempools in conjunction with slabs, this defines
a couple of utility functions for allocing/freeing.

ChangeSet@1.710, 2002-10-09 17:09:58+01:00, thornber@sistina.com
[vmalloc]
Introduce vcalloc, I only really want it to automate the size overflow
check when allocating arrays.

ChangeSet@1.711, 2002-10-09 17:28:44+01:00, thornber@sistina.com
[Device mapper]
The core of the device-mapper driver. No interface or target types
included as yet.
ftp://ftp.sistina.com/pub/LVM2/tools/LVM
ChangeSet@1.712, 2002-10-09 17:33:00+01:00, thornber@sistina.com
[Device mapper]
The linear target maps a contigous range of logical sectors onto an
contiguous range of physical sectors.

ChangeSet@1.713, 2002-10-09 17:36:55+01:00, thornber@sistina.com
[Device mapper]
The stripe target. Maps a range of logical sectors across many
physical volumes.

ChangeSet@1.714, 2002-10-09 17:41:10+01:00, thornber@sistina.com
[Device mapper]
Provide a traditional ioctl based interface to control device-mapper
from userland.






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