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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-10-04 17:45:54 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-10-05 11:42:31 -0700
commit36d2582ff235b4e01ad64a734c877a52dc762d9c (patch)
tree71de3ed5c487600e822833da466a7d1f30ec0ba8 /drivers/input
parentf74c371fe72a4f820d287db8067683fb533e4ede (diff)
downloadlinux-36d2582ff235b4e01ad64a734c877a52dc762d9c.tar.bz2
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 <paulmck@linux.ibm.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/evdev.c1
1 files changed, 1 insertions, 0 deletions
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: