mei: add a spin lock to protect rd_completed queue
In order to support vtags we need to access read completed
queue out of driver big lock.
Add a spin lock to protect rd_completed queue.
Signed-off-by: Alexander Usyskin <[email protected]>
Signed-off-by: Tomas Winkler <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 0d0f363..bd57c64 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -133,8 +133,11 @@ int mei_cl_unlink(struct mei_cl *cl);
struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev);
-struct mei_cl_cb *mei_cl_read_cb(const struct mei_cl *cl,
- const struct file *fp);
+struct mei_cl_cb *mei_cl_read_cb(struct mei_cl *cl, const struct file *fp);
+
+void mei_cl_add_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb);
+void mei_cl_del_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb);
+
struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
enum mei_cb_file_ops type,
const struct file *fp);
