Add a new module parameter to enable kthread while loading modules.
This parameter will identify if the vhost will use kthread or a task.
The default value will be true.

Signed-off-by: Cindy Lu <lulu@redhat.com>

module_param
---
 drivers/vhost/vhost.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 9ac25d08f473..be43181af659 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -41,6 +41,9 @@ static int max_iotlb_entries = 2048;
 module_param(max_iotlb_entries, int, 0444);
 MODULE_PARM_DESC(max_iotlb_entries,
 	"Maximum number of iotlb entries. (default: 2048)");
+bool enforce_kthread = true;
+module_param(enforce_kthread, bool, 0444);
+MODULE_PARM_DESC(enforce_kthread, "enable vhost to use kthread (default: Y)");
 
 enum {
 	VHOST_MEMORY_F_LOG = 0x1,
-- 
2.45.0