diff options
| author | Masato Suzuki <masato.suzuki@wdc.com> | 2018-10-30 10:14:05 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-07 23:41:50 +0300 |
| commit | ea2c18e1044e9ed8f780c965c50432060ab0e355 (patch) | |
| tree | 0dc4b8f9ffc8593df1e4f788d203ba882e3f324f /drivers/block/null_blk.h | |
| parent | 85758777c2a227fd1541b6dd122a08ab79c347ce (diff) | |
| download | linux-ea2c18e1044e9ed8f780c965c50432060ab0e355.tar.xz | |
null_blk: Add conventional zone configuration for zoned support
Allow the creation of conventional zones by adding the zone_nr_conv
configuration attribute. This new attribute is used only for zoned devices
and indicates the number of conventional zones to create. The default value
is 0. Since host-managed zoned block devices must always have at least one
sequential zone, if the value of zone_nr_conv is larger than or equal to
the total number of zones of the device nr_zones, zone_nr_conv is
automatically changed to nr_zones - 1.
Reviewed-by: Matias Bjorling <matias.bjorling@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Masato Suzuki <masato.suzuki@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/null_blk.h')
| -rw-r--r-- | drivers/block/null_blk.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h index 7685df43f1ef..b3df2793e7cd 100644 --- a/drivers/block/null_blk.h +++ b/drivers/block/null_blk.h @@ -49,6 +49,7 @@ struct nullb_device { unsigned long completion_nsec; /* time in ns to complete a request */ unsigned long cache_size; /* disk cache size in MB */ unsigned long zone_size; /* zone size in MB if device is zoned */ + unsigned int zone_nr_conv; /* number of conventional zones */ unsigned int submit_queues; /* number of submission queues */ unsigned int home_node; /* home node for the device */ unsigned int queue_mode; /* block interface */ |