- Fix DM writecache target to allow an optional offset to the start of
the data and metadata area. This allows userspace tools (e.g. LVM2)
to place a header and metadata at the front of the writecache device
for its use.
dm writecache: support optional offset for start of device
Add an optional parameter "start_sector" to allow the start of the
device to be offset by the specified number of 512-byte sectors. The
sectors below this offset are not used by the writecache device and are
left to be used for disk labels and/or userspace metadata (e.g. lvm).
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2 files changed
