Johannes Thumshirn 02ef12a663
zonefs: use REQ_OP_ZONE_APPEND for sync DIO ...
Synchronous direct I/O to a sequential write only zone can be issued using
the new REQ_OP_ZONE_APPEND request operation. As dispatching multiple
BIOs can potentially result in reordering, we cannot support asynchronous
IO via this interface.
We also can only dispatch up to queue_max_zone_append_sectors() via the
new zone-append method and have to return a short write back to user-space
in case an IO larger than queue_max_zone_append_sectors() has been issued.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com >
Acked-by: Damien Le Moal <damien.lemoal@wdc.com >
Signed-off-by: Jens Axboe <axboe@kernel.dk >
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02ef12a663