Add capability query to DiskFile trait to check backend support for sparse operations (punch hole, write zeroes, discard). Only advertise VIRTIO_BLK_F_DISCARD and VIRTIO_BLK_F_WRITE_ZEROES when the backend supports these operations. Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com> |
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| Cargo.toml | ||