block: make bdrv_start_throttled_reqs return void

The return value is unused and I am not sure why it would be useful.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

diff --git a/block/io.c b/block/io.c
index a91d86201758138826e199c7965de118b96be0f8..691baa69e77ed397f3dc20764c69c0bfce8b3742 100644 (file)
--- a/block/io.c
+++ b/block/io.c
@@ -71,10 +71,8 @@ void bdrv_set_io_limits(BlockDriverState *bs,
     }
 }
 
-/* this function drain all the throttled IOs */
-static bool bdrv_start_throttled_reqs(BlockDriverState *bs)
+static void bdrv_start_throttled_reqs(BlockDriverState *bs)
 {
-    bool drained = false;
     bool enabled = bs->io_limits_enabled;
     int i;
 
@@ -82,13 +80,11 @@ static bool bdrv_start_throttled_reqs(BlockDriverState *bs)
 
     for (i = 0; i < 2; i++) {
         while (qemu_co_enter_next(&bs->throttled_reqs[i])) {
-            drained = true;
+            ;
         }
     }
 
     bs->io_limits_enabled = enabled;
-
-    return drained;
 }
 
 void bdrv_io_limits_disable(BlockDriverState *bs)