[dm-devel] [PATCH 0 of 9] DM RAID: a wrapper target for MD RAID456

Jonathan Brassow jbrassow at redhat.com
Thu Nov 18 23:40:15 UTC 2010


This first set of patches consists of:
- some MD patch reversals and fixes
  md-backout-dm-dirty-log.patch
  md-minor-updates.patch
  md-fix-null-pointer-deref.patch
- Some reworking of Neil's original patches (changing CTR args, etc)
  dm-raid-seed-module.patch
  dm-target-callbacks-and-congestion-fn.patch
  dm-unplug-callback.patch
  dm-raid-iterate_devices-and-io_hints.patch
  dm-raid-suspend-and-resume-fns.patch
  dm-raid-message-fn.patch

I've attached a perl script that makes it easy to build RAID456 via the
device-mapper interfaces.  The script has support for persistent
metadata and bitmaps, but I'm not ready to post those patches yet - so
don't bother changing 'mdp' (aka Metadata Placement).  The following
command should get you started testing:
  $> gime_raid.pl raid4 /dev/sd[bcdef]1

 brassow


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