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authorDamien Le Moal <damien.lemoal@wdc.com>2019-06-04 16:23:40 +0900
committerJens Axboe <axboe@kernel.dk>2019-06-13 03:00:31 -0600
commitb9aef63aca772a25ffcfaedf4bd29fb36b919a93 (patch)
treef08834761aa56522e3daa9ed9cdf1e560782bc39 /block
parentcf8929885de318c0bf73438c9e5dde59d6536f7c (diff)
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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/Kconfig1
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.