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linux/Documentation/device-mapper/writecache.txt
Mikulas Patocka d284f8248c 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>
2018-07-02 16:14:02 -04:00

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