[PATCH 3/3] virtio_scsi: use complete() instead complete_all()

From: Daniel Wagner
Date: Tue Sep 13 2016 - 04:59:06 EST


From: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>

There is only one waiter for the completion, therefore there is no need
to use complete_all(). Let's make that clear by using complete() instead
of complete_all().

The usage pattern of the completion is:

waiter context waker context

virtscsi_tmf()
DECLARE_COMPLETION_ONSTACK()
virtscsi_kick_cmd()
wait_for_completion()

virtscsi_complete_free()
complete()

Signed-off-by: Daniel Wagner <daniel.wagner@xxxxxxxxxxxx>
---
drivers/scsi/virtio_scsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 7dbbb29..86924ff 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -258,7 +258,7 @@ static void virtscsi_complete_free(struct virtio_scsi *vscsi, void *buf)
struct virtio_scsi_cmd *cmd = buf;

if (cmd->comp)
- complete_all(cmd->comp);
+ complete(cmd->comp);
}

static void virtscsi_ctrl_done(struct virtqueue *vq)
--
2.7.4