Kevin Wolf 80f5c33ff3 block: Advertise BDRV_REQ_NO_FALLBACK in filter drivers
Filter drivers that support .bdrv_co_pwrite_zeroes can safely advertise
BDRV_REQ_NO_FALLBACK because they just forward the request flags to
their child node.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Eric Blake <eblake@redhat.com>
2019-03-26 11:37:51 +01:00
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