block: rename blk_io_plug_call() API to defer_call()

Prepare to move the blk_io_plug_call() API out of the block layer so
that other subsystems call use this deferred call mechanism. Rename it
to defer_call() but leave the code in block/plug.c.

The next commit will move the code out of the block layer.

Suggested-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230913200045.1024233-2-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/block/linux-aio.c b/block/linux-aio.c
index 1a51503271..49a37174c2 100644
--- a/block/linux-aio.c
+++ b/block/linux-aio.c
@@ -353,7 +353,7 @@ static uint64_t laio_max_batch(LinuxAioState *s, uint64_t dev_max_batch)
     return max_batch;
 }
 
-static void laio_unplug_fn(void *opaque)
+static void laio_deferred_fn(void *opaque)
 {
     LinuxAioState *s = opaque;
 
@@ -393,7 +393,7 @@ static int laio_do_submit(int fd, struct qemu_laiocb *laiocb, off_t offset,
         if (s->io_q.in_queue >= laio_max_batch(s, dev_max_batch)) {
             ioq_submit(s);
         } else {
-            blk_io_plug_call(laio_unplug_fn, s);
+            defer_call(laio_deferred_fn, s);
         }
     }