Flush IO requests before savevm (original patch by Blue Swirl).

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2140 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 11 insertions, 0 deletions

diff --git a/block-raw.c b/block-raw.c
index 3ed4b32de0..3a2843c5d6 100644
--- a/block-raw.c
+++ b/block-raw.c
@@ -247,6 +247,17 @@ void qemu_aio_poll(void)
  the_end: ;
 }
 
+/* Wait for all IO requests to complete.  */
+void qemu_aio_flush(void)
+{
+    qemu_aio_wait_start();
+    qemu_aio_poll();
+    while (first_aio) {
+        qemu_aio_wait();
+    }
+    qemu_aio_wait_end();
+}
+
 /* wait until at least one AIO was handled */
 static sigset_t wait_oset;