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authorGerd Hoffmann <kraxel@redhat.com>2016-06-23 11:51:35 +0200
committerGerd Hoffmann <kraxel@redhat.com>2016-07-12 09:25:28 +0200
commitc80276b4206d534daaaf87305df5805db1b8db02 (patch)
treefa8fc8e0b65d1cc219fc975a18152614a8e4f0a3 /hw/input/virtio-input.c
parentd7b7f526b18dacda8ee559dc18c13d4430a78b68 (diff)
input: add trace events for full queues
It isn't unusual to happen, for example during reboot when the guest doesn't reveice events for a while. So better don't flood stderr with alarming messages. Turn them into tracepoints instead so they can be enabled in case they are needed for trouble-shooting. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1466675495-28797-1-git-send-email-kraxel@redhat.com
Diffstat (limited to 'hw/input/virtio-input.c')
-rw-r--r--hw/input/virtio-input.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/input/virtio-input.c b/hw/input/virtio-input.c
index f59749a943..edf69903a6 100644
--- a/hw/input/virtio-input.c
+++ b/hw/input/virtio-input.c
@@ -7,6 +7,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/iov.h"
+#include "trace.h"
#include "hw/qdev.h"
#include "hw/virtio/virtio.h"
@@ -47,7 +48,7 @@ void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event)
virtqueue_get_avail_bytes(vinput->evt, &have, NULL, need, 0);
if (have < need) {
vinput->qindex = 0;
- fprintf(stderr, "%s: ENOSPC in vq, dropping events\n", __func__);
+ trace_virtio_input_queue_full();
return;
}