Mikulas Patocka 7f06965390 dm kcopyd: add dm_kcopyd_zero to zero an area ...

This patch introduces dm_kcopyd_zero() to make it easy to use
kcopyd to write zeros into the requested areas instead
instead of copying.  It is implemented by passing a NULL
copying source to dm_kcopyd_copy().

The forthcoming thin provisioning target uses this.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

2011-10-31 20:18:58 +00:00

2.0 KiB

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