commit 0f31977d9dd659ae39aa42e3904c5c1b23da1475
author Kevin Wolf <kwolf@redhat.com> Thu Nov 10 14:24:27 2016 +0100
committer Kevin Wolf <kwolf@redhat.com> Mon Jan 09 13:30:52 2017 +0100
tree 24a3c7573baa297f20deded875bb982cb2175207
parent ce15dc08ef13438ba7be75e6887162ad2cc5c6c9

quorum: Do cleanup in caller coroutine

Instead of calling quorum_aio_finalize() deeply nested in what used
to be an AIO callback, do it in the same functions that allocated the
AIOCB.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

block/quorum.c

diff --git a/block/quorum.c b/block/quorum.c
index 6a7bd91..e044010 100644
--- a/block/quorum.c
+++ b/block/quorum.c
@@ -144,9 +144,8 @@
 
 static void quorum_aio_finalize(QuorumAIOCB *acb)
 {
-    acb->has_completed = true;
     g_free(acb->qcrs);
-    qemu_coroutine_enter_if_inactive(acb->co);
+    g_free(acb);
 }
 
 static bool quorum_sha256_compare(QuorumVoteValue *a, QuorumVoteValue *b)
@@ -238,7 +237,8 @@
         return;
     }
 
-    quorum_aio_finalize(acb);
+    acb->has_completed = true;
+    qemu_coroutine_enter_if_inactive(acb->co);
 }
 
 static int read_fifo_child(QuorumAIOCB *acb);
@@ -284,7 +284,7 @@
     acb->vote_ret = ret;
 
     /* FIXME: rewrite failed children if acb->children_read > 1? */
-    quorum_aio_finalize(acb);
+
     return ret;
 }
 
@@ -322,7 +322,8 @@
 
     /* if no rewrite is done the code will finish right away */
     if (!rewrite) {
-        quorum_aio_finalize(acb);
+        acb->has_completed = true;
+        qemu_coroutine_enter_if_inactive(acb->co);
     }
 }
 
@@ -715,7 +716,8 @@
     } else {
         ret = read_fifo_child(acb);
     }
-    g_free(acb);
+    quorum_aio_finalize(acb);
+
     return ret;
 }
 
@@ -757,6 +759,7 @@
     }
 
     ret = acb->vote_ret;
+    quorum_aio_finalize(acb);
 
     return ret;
 }