From: Johannes Thumshirn Date: Wed, 4 Jul 2018 08:53:56 +0000 (+0200) Subject: scsi: core: switch to scsi-mq by default X-Git-Tag: v4.19-rc1~129^2~94 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=d5038a13eca72fb216c07eb717169092e92284f1;p=uclinux-h8%2Flinux.git scsi: core: switch to scsi-mq by default 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 Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Acked-by: John Garry Signed-off-by: Martin K. Petersen --- 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