Replace "iothread lock" with "BQL" in comments

The term "iothread lock" is obsolete. The APIs use Big QEMU Lock (BQL)
in their names. Update the code comments to use "BQL" instead of
"iothread lock".

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Message-id: 20240102153529.486531-5-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/hw/display/qxl.h b/hw/display/qxl.h
index fdac14e..e0a85a5 100644
--- a/hw/display/qxl.h
+++ b/hw/display/qxl.h
@@ -159,7 +159,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(PCIQXLDevice, PCI_QXL)
  *
  * Use with care; by the time this function returns, the returned pointer is
  * not protected by RCU anymore.  If the caller is not within an RCU critical
- * section and does not hold the iothread lock, it must have other means of
+ * section and does not hold the BQL, it must have other means of
  * protecting the pointer, such as a reference to the region that includes
  * the incoming ram_addr_t.
  *
diff --git a/hw/remote/mpqemu-link.c b/hw/remote/mpqemu-link.c
index d04ac93..4394dc4 100644
--- a/hw/remote/mpqemu-link.c
+++ b/hw/remote/mpqemu-link.c
@@ -58,7 +58,7 @@ bool mpqemu_msg_send(MPQemuMsg *msg, QIOChannel *ioc, Error **errp)
     assert(qemu_in_coroutine() || !iothread);
 
     /*
-     * Skip unlocking/locking iothread lock when the IOThread is running
+     * Skip unlocking/locking BQL when the IOThread is running
      * in co-routine context. Co-routine context is asserted above
      * for IOThread case.
      * Also skip lock handling while in a co-routine in the main context.