HID: use single threaded work queue for hid_compat

Use single threaded work queue for hid_compat

I doubt HID really needs to scale over multiple CPUs. So only use a
single threaded workqueue for HID_COMPAT. This avoids some excessive
thread use on systems with a larger number of CPUs.

Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 4f0b92edb4df6d4eb2a00e17dedc5750823815c2..e158aa83b92f35cc8ba898743f1887ae041b7239 100644 (file)
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1736,7 +1736,7 @@ static int __init hid_init(void)
                goto err_bus;
 
 #ifdef CONFIG_HID_COMPAT
-       hid_compat_wq = create_workqueue("hid_compat");
+       hid_compat_wq = create_singlethread_workqueue("hid_compat");
        if (!hid_compat_wq) {
                hidraw_exit();
                goto err;