block/rbd: drop qemu_rbd_aio_flush_cb()

.io_flush() is no longer called so drop qemu_rbd_aio_flush_cb().
qemu_aio_count is unused now so drop it too.

Signed-off-by: Stefan Hajnoczi <[email protected]>

diff --git a/block/rbd.c b/block/rbd.c
index cb71751218298cc0dcba4e48cc5f1d10893b597e..71b4a0cd5b50a048d6c35c7cb8c09d9a8d404949 100644 (file)
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -100,7 +100,6 @@ typedef struct BDRVRBDState {
     rados_ioctx_t io_ctx;
     rbd_image_t image;
     char name[RBD_MAX_IMAGE_NAME_SIZE];
-    int qemu_aio_count;
     char *snap;
     int event_reader_pos;
     RADOSCB *event_rcb;
@@ -428,19 +427,11 @@ static void qemu_rbd_aio_event_reader(void *opaque)
             if (s->event_reader_pos == sizeof(s->event_rcb)) {
                 s->event_reader_pos = 0;
                 qemu_rbd_complete_aio(s->event_rcb);
-                s->qemu_aio_count--;
             }
         }
     } while (ret < 0 && errno == EINTR);
 }
 
-static int qemu_rbd_aio_flush_cb(void *opaque)
-{
-    BDRVRBDState *s = opaque;
-
-    return (s->qemu_aio_count > 0);
-}
-
 /* TODO Convert to fine grained options */
 static QemuOptsList runtime_opts = {
     .name = "rbd",
@@ -554,7 +545,7 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags)
     fcntl(s->fds[0], F_SETFL, O_NONBLOCK);
     fcntl(s->fds[1], F_SETFL, O_NONBLOCK);
     qemu_aio_set_fd_handler(s->fds[RBD_FD_READ], qemu_rbd_aio_event_reader,
-                            NULL, qemu_rbd_aio_flush_cb, s);
+                            NULL, NULL, s);
 
 
     qemu_opts_del(opts);
@@ -741,8 +732,6 @@ static BlockDriverAIOCB *rbd_start_aio(BlockDriverState *bs,
     off = sector_num * BDRV_SECTOR_SIZE;
     size = nb_sectors * BDRV_SECTOR_SIZE;
 
-    s->qemu_aio_count++; /* All the RADOSCB */
-
     rcb = g_malloc(sizeof(RADOSCB));
     rcb->done = 0;
     rcb->acb = acb;
@@ -779,7 +768,6 @@ static BlockDriverAIOCB *rbd_start_aio(BlockDriverState *bs,
 
 failed:
     g_free(rcb);
-    s->qemu_aio_count--;
     qemu_aio_release(acb);
     return NULL;
 }