diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2019-06-04 16:23:40 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-13 03:00:31 -0600 |
| commit | b9aef63aca772a25ffcfaedf4bd29fb36b919a93 (patch) | |
| tree | f08834761aa56522e3daa9ed9cdf1e560782bc39 /block | |
| parent | cf8929885de318c0bf73438c9e5dde59d6536f7c (diff) | |
| download | linux-b9aef63aca772a25ffcfaedf4bd29fb36b919a93.tar.bz2 | |
block: force select mq-deadline for zoned block devices
In most use cases of zoned block devices (aka SMR disks), the
mq-deadline scheduler is mandatory as it implements sequential write
command processing guarantees with zone write locking. So make sure that
this scheduler is always enabled if CONFIG_BLK_DEV_ZONED is selected.
Tested-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig index 1b220101a9cb..2466dcc3ef1d 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -73,6 +73,7 @@ config BLK_DEV_INTEGRITY config BLK_DEV_ZONED bool "Zoned block device support" + select MQ_IOSCHED_DEADLINE ---help--- Block layer zoned block device support. This option enables support for ZAC/ZBC host-managed and host-aware zoned block devices. |