Blame SOURCES/kvm-block-package-rollback-code-in-qmp_transaction.patch

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From 615e6e9c2adabbc5039e3fdbd49326eeb549f931 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Mon, 9 Sep 2013 14:27:55 +0200
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Subject: [PATCH 04/38] block: package rollback code in qmp_transaction()
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <1378736903-18489-5-git-send-email-kwolf@redhat.com>
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Patchwork-id: 54191
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O-Subject: [RHEL-7.0 qemu-kvm PATCH 04/32] block: package rollback code in qmp_transaction()
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Bugzilla: 1005818
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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From: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
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Bugzilla: 1005818
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Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
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Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 96b86bf72de0c6eda2799201517ef32910beb340)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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 blockdev.c | 11 ++++++++---
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 1 file changed, 8 insertions(+), 3 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 blockdev.c |   11 ++++++++---
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 1 files changed, 8 insertions(+), 3 deletions(-)
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diff --git a/blockdev.c b/blockdev.c
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index eabb3f8..b040f0f 100644
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--- a/blockdev.c
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+++ b/blockdev.c
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@@ -882,6 +882,13 @@ static void external_snapshot_commit(BlkTransactionStates *states)
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                 NULL);
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 }
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+static void external_snapshot_abort(BlkTransactionStates *states)
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+{
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+    if (states->new_bs) {
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+        bdrv_delete(states->new_bs);
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+    }
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+}
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+
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 /*
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  * 'Atomic' group snapshots.  The snapshots are taken as a set, and if any fail
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  *  then we do not pivot any of the devices in the group, and abandon the
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@@ -939,9 +946,7 @@ delete_and_fail:
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     * the original bs for all images
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     */
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     QSIMPLEQ_FOREACH(states, &snap_bdrv_states, entry) {
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-        if (states->new_bs) {
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-             bdrv_delete(states->new_bs);
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-        }
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+        external_snapshot_abort(states);
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     }
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 exit:
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     QSIMPLEQ_FOREACH_SAFE(states, &snap_bdrv_states, entry, next) {
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-- 
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1.7.1
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