From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Mon, 4 Mar 2013 14:02:35 +0000 (+0100)
Subject: qcow2: drop unnecessary flush in qcow2_update_snapshot_refcount()
X-Git-Tag: v1.5.0-rc0~467^2~14
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3647917919dfce5f731755f0ac5955a64bc12570;p=thirdparty%2Fqemu.git

qcow2: drop unnecessary flush in qcow2_update_snapshot_refcount()

We already flush when the function completes.  There is no need to flush
after every compressed cluster.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 92519ea62a7..9bfb3905198 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -790,10 +790,6 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
                             if (ret < 0) {
                                 goto fail;
                             }
-
-                            /* TODO Flushing once for the whole function should
-                             * be enough */
-                            bdrv_flush(bs->file);
                         }
                         /* compressed clusters are never modified */
                         refcount = 2;