block: add zone specific block statuses
authorKeith Busch <kbusch@kernel.org>
Thu, 24 Sep 2020 20:53:28 +0000 (13:53 -0700)
committerJens Axboe <axboe@kernel.dk>
Tue, 13 Oct 2020 21:05:05 +0000 (15:05 -0600)
commit3b481d91356e5693d8358d4ef9c383bdb92c8da0
treeafedde5da48885555103d2324c064777e024011a
parent47be77c2f80412f903134a57caea25fa3fc5f578
block: add zone specific block statuses

A zoned device with limited resources to open or activate zones may
return an error when the host exceeds those limits. The same command may
be successful if retried later, but the host needs to wait for specific
zone states before it should expect a retry to succeed. Have the block
layer provide an appropriate status for these conditions so applications
can distinuguish this error for special handling.

Cc: linux-api@vger.kernel.org
Cc: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Documentation/block/queue-sysfs.rst
block/blk-core.c
include/linux/blk_types.h