Looks good to me, I did make sure that when selecting ZBD option from menuconfig MQ gets selected automatically, from make menuconfig command. Tested-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx> On 06/11/2019 02:31 AM, Damien Le Moal wrote: > On 2019/06/04 16:23, Damien Le Moal wrote: >> 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. >> >> Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx> >> --- >> block/Kconfig | 1 + >> 1 file changed, 1 insertion(+) >> >> 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. >> > > Ping... Any comment on this one ? > >