| Message ID | 20200925021808.26471-1-colin.xu@intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | input-linux: Reset il->fd handler before closing it | expand |
Colin Xu <colin.xu@intel.com> 于2020年9月25日周五 上午10:18写道： > > If object-del input-linux object on-the-fly, instance finalize will > close evdev fd without resetting it. However the main thread is still > trying to lock_acquire/lock_release during ppoll, which leads to a very > high CPU utilization. > > Signed-off-by: Colin Xu <colin.xu@intel.com> Reviewed-by: Li Qiang <liq3ea@gmail.com> > --- > ui/input-linux.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/ui/input-linux.c b/ui/input-linux.c > index ab351a418701..34cc531190f9 100644 > --- a/ui/input-linux.c > +++ b/ui/input-linux.c > @@ -418,6 +418,7 @@ static void input_linux_instance_finalize(Object *obj) > > if (il->initialized) { > QTAILQ_REMOVE(&inputs, il, next); > + qemu_set_fd_handler(il->fd, NULL, NULL, NULL); > close(il->fd); > } > g_free(il->evdev); > -- > 2.28.0 > >
diff --git a/ui/input-linux.c b/ui/input-linux.c index ab351a418701..34cc531190f9 100644 --- a/ui/input-linux.c +++ b/ui/input-linux.c @@ -418,6 +418,7 @@ static void input_linux_instance_finalize(Object *obj) if (il->initialized) { QTAILQ_REMOVE(&inputs, il, next); + qemu_set_fd_handler(il->fd, NULL, NULL, NULL); close(il->fd); } g_free(il->evdev);
If object-del input-linux object on-the-fly, instance finalize will close evdev fd without resetting it. However the main thread is still trying to lock_acquire/lock_release during ppoll, which leads to a very high CPU utilization. Signed-off-by: Colin Xu <colin.xu@intel.com> --- ui/input-linux.c | 1 + 1 file changed, 1 insertion(+)