scsi: add a CONFIG_SCSI_MQ_DEFAULT option
Add a Kconfig option to enable the blk-mq path for SCSI by default to ease testing and deployment in setups that know they benefit from blk-mq. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Robert Elliott <elliott@hp.com> Tested-by: Robert Elliott <elliott@hp.com>
This commit is contained in:
Родитель
8e4a5da69c
Коммит
24c20f1058
|
@ -45,6 +45,17 @@ config SCSI_NETLINK
|
|||
default n
|
||||
select NET
|
||||
|
||||
config SCSI_MQ_DEFAULT
|
||||
bool "SCSI: use blk-mq I/O path by default"
|
||||
depends on SCSI
|
||||
---help---
|
||||
This option enables the new blk-mq based I/O path for SCSI
|
||||
devices by default. With the option the scsi_mod.use_blk_mq
|
||||
module/boot option defaults to Y, without it to N, but it can
|
||||
still be overriden either way.
|
||||
|
||||
If unsure say N.
|
||||
|
||||
config SCSI_PROC_FS
|
||||
bool "legacy /proc/scsi/ support"
|
||||
depends on SCSI && PROC_FS
|
||||
|
|
|
@ -1367,7 +1367,11 @@ MODULE_LICENSE("GPL");
|
|||
module_param(scsi_logging_level, int, S_IRUGO|S_IWUSR);
|
||||
MODULE_PARM_DESC(scsi_logging_level, "a bit mask of logging levels");
|
||||
|
||||
#ifdef CONFIG_SCSI_MQ_DEFAULT
|
||||
bool scsi_use_blk_mq = true;
|
||||
#else
|
||||
bool scsi_use_blk_mq = false;
|
||||
#endif
|
||||
module_param_named(use_blk_mq, scsi_use_blk_mq, bool, S_IWUSR | S_IRUGO);
|
||||
|
||||
static int __init init_scsi(void)
|
||||
|
|
Загрузка…
Ссылка в новой задаче