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Subject[PATCH] scsi: switch to scsi-mq by default
Date
It has been more than one year since we tried to change the default
from legacy to multi queue in SCSI with commit c279bd9e406 ("scsi:
default to scsi-mq"). But due to issues with suspend/resume and
performance problems it had been reverted again with commit
cbe7dfa26eee ("Revert "scsi: default to scsi-mq"").

In the meantime there have been a substantial amount of performance
improvements and suspend/resume got fixed as well, thus we can
re-enable scsi-mq without a significant performance penalty.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Acked-by: John Garry <john.garry@huawei.com>

---
Changes since RFC:
- Improve Changelog as Bart suggested
- Collect Acks and Reviews
---
drivers/scsi/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 35c909bbf8ba..bd115bab162e 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -49,6 +49,7 @@ config SCSI_NETLINK

config SCSI_MQ_DEFAULT
bool "SCSI: use blk-mq I/O path by default"
+ default y
depends on SCSI
---help---
This option enables the new blk-mq based I/O path for SCSI
--
2.16.4
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