On 12/21/20 10:49 PM, Naohiro Aota wrote:

From: Johannes Thumshirn <redacted>

In zoned mode, cache if a block-group is on a sequential write only zone.
On sequential write only zones, we can use REQ_OP_ZONE_APPEND for writing
of data, therefore provide btrfs_use_zone_append() to figure out if I/O is
targeting a sequential write only zone and we can use said
REQ_OP_ZONE_APPEND for data writing.

Signed-off-by: Johannes Thumshirn <redacted>

Reviewed-by: Josef Bacik <josef@toxicpanda.com>

Thanks,

Josef