From 36d2582ff235b4e01ad64a734c877a52dc762d9c Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 4 Oct 2018 17:45:54 -0700 Subject: Input: evdev - add a schedule point in evdev_write() Large writes to evdev interface may cause rcu stalls. Let's add cond_resched() to the loop to avoid this. Reviewed-by: Paul E. McKenney Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 370206f987f9..f48369d6f3a0 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -564,6 +564,7 @@ static ssize_t evdev_write(struct file *file, const char __user *buffer, input_inject_event(&evdev->handle, event.type, event.code, event.value); + cond_resched(); } out: -- cgit v1.2.3-59-g8ed1b