Mikulas Patocka 494b3ee7d4 dm snapshot: support barriers ...

Flush support for dm-snapshot target.

This patch just forwards the flush request to either the origin or the snapshot
device.  (It doesn't flush exception store metadata.)

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

2009-06-22 10:12:25 +01:00

33 KiB

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