From: Nolan <nolan@sigbus.net>
Date: Mon, 20 Jul 2009 21:01:25 +0000 (-0700)
Subject: Handle BH's queued by AIO completions in qemu_aio_flush()
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0dd99a1e37baf1964455df4ab5dc51a91bfd3b99;p=thirdparty%2Fqemu.git

Handle BH's queued by AIO completions in qemu_aio_flush()

Without this, the call to qemu_aio_flush during migration doesn't
actually flush all in-flight SCSI IOs.

Signed-off-by: Nolan Leake <nolan <at> sigbus.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Glauber Costa <glommer@redhat.com>
---

diff --git a/aio.c b/aio.c
index dc9b85d1677..efc63fd9a1f 100644
--- a/aio.c
+++ b/aio.c
@@ -112,7 +112,7 @@ void qemu_aio_flush(void)
         LIST_FOREACH(node, &aio_handlers, node) {
             ret |= node->io_flush(node->opaque);
         }
-    } while (ret > 0);
+    } while (qemu_bh_poll() || ret > 0);
 }
 
 void qemu_aio_wait(void)