this patch ensures that all pending IOs are completed
before a device is resized. this is especially important
if a device is shrinked as it the bdrv_check_request()
result is invalidated.
Signed-off-by: Peter Lieven <p...@kamp.de>
---
blockdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/blockdev.c b/blockdev.c
index 0e67d06..be36ed7 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1062,6 +1062,9 @@ void qmp_block_resize(const char *device, int64_t size,
Error **errp)
return;
}
+ /* complete all in-flight operations before resizing the device */
+ bdrv_drain_all();
+
switch (bdrv_truncate(bs, size)) {
case 0:
break;
--
1.7.9.5
