[PATCH 13/15] block: second argument of bdrv_do_drained_end is always NULL

[Paolo Bonzini]

Remove it and unify the function with bdrv_drained_end.

Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 block/io.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/block/io.c b/block/io.c
index 695c8f3f5faa..c2962adf8d2d 100644
--- a/block/io.c
+++ b/block/io.c
@@ -69,14 +69,11 @@ void bdrv_parent_drained_end_single(BdrvChild *c)
     }
 }
 
-static void bdrv_parent_drained_end(BlockDriverState *bs, BdrvChild *ignore)
+static void bdrv_parent_drained_end(BlockDriverState *bs)
 {
     BdrvChild *c;
 
     QLIST_FOREACH(c, &bs->parents, next_parent) {
-        if (c == ignore) {
-            continue;
-        }
         bdrv_parent_drained_end_single(c);
     }
 }
@@ -262,7 +259,6 @@ static bool bdrv_drain_poll_top_level(BlockDriverState *bs,
 
 static void bdrv_do_drained_begin(BlockDriverState *bs, BdrvChild *parent,
                                   bool poll);
-static void bdrv_do_drained_end(BlockDriverState *bs, BdrvChild *parent);
 
 static void bdrv_co_drain_bh_cb(void *opaque)
 {
@@ -381,10 +377,11 @@ void bdrv_drained_begin(BlockDriverState *bs)
  * This function does not poll, nor must any of its recursively called
  * functions.
  */
-static void bdrv_do_drained_end(BlockDriverState *bs, BdrvChild *parent)
+void bdrv_drained_end(BlockDriverState *bs)
 {
     int old_quiesce_counter;
 
+    IO_OR_GS_CODE();
     assert(bs->quiesce_counter > 0);
 
     /* Re-enable things in child-to-parent order */
@@ -393,17 +390,11 @@ static void bdrv_do_drained_end(BlockDriverState *bs, 
BdrvChild *parent)
         if (bs->drv && bs->drv->bdrv_drain_end) {
             bs->drv->bdrv_drain_end(bs);
         }
-        bdrv_parent_drained_end(bs, parent);
+        bdrv_parent_drained_end(bs);
         aio_enable_external(bdrv_get_aio_context(bs));
     }
 }
 
-void bdrv_drained_end(BlockDriverState *bs)
-{
-    IO_OR_GS_CODE();
-    bdrv_do_drained_end(bs, NULL);
-}
-
 void bdrv_drain(BlockDriverState *bs)
 {
     IO_OR_GS_CODE();
@@ -504,7 +495,7 @@ void bdrv_drain_all_end_quiesce(BlockDriverState *bs)
     g_assert(!bs->refcnt);
 
     while (bs->quiesce_counter) {
-        bdrv_do_drained_end(bs, NULL);
+        bdrv_drained_end(bs);
     }
 }
 
@@ -526,7 +517,7 @@ void bdrv_drain_all_end(void)
         AioContext *aio_context = bdrv_get_aio_context(bs);
 
         aio_context_acquire(aio_context);
-        bdrv_do_drained_end(bs, NULL);
+        bdrv_drained_end(bs);
         aio_context_release(aio_context);
     }
 
-- 
2.38.1