|
 |
1bdc94 |
From 305bd87b4d721989679d4c3407e355e032e2c005 Mon Sep 17 00:00:00 2001
|
|
|
1bdc94 |
From: John Snow <jsnow@redhat.com>
|
|
|
1bdc94 |
Date: Wed, 18 Jul 2018 22:54:46 +0200
|
|
|
1bdc94 |
Subject: [PATCH 61/89] blockdev: enable non-root nodes for backup source
|
|
|
1bdc94 |
|
|
|
1bdc94 |
RH-Author: John Snow <jsnow@redhat.com>
|
|
|
1bdc94 |
Message-id: <20180718225511.14878-11-jsnow@redhat.com>
|
|
|
1bdc94 |
Patchwork-id: 81395
|
|
|
1bdc94 |
O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 10/35] blockdev: enable non-root nodes for backup source
|
|
|
1bdc94 |
Bugzilla: 1207657
|
|
|
1bdc94 |
RH-Acked-by: Eric Blake <eblake@redhat.com>
|
|
|
1bdc94 |
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
|
|
|
1bdc94 |
RH-Acked-by: Fam Zheng <famz@redhat.com>
|
|
|
1bdc94 |
|
|
|
1bdc94 |
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
|
|
|
1bdc94 |
|
|
|
1bdc94 |
This is needed to implement the image-fleecing workflow where we
|
|
|
1bdc94 |
create a temporary node backed by an active node, then start
|
|
|
1bdc94 |
backupdev-backup sync=none from the active node to the temp node.
|
|
|
1bdc94 |
|
|
|
1bdc94 |
In this case, the active node is now a root node AND a backing node,
|
|
|
1bdc94 |
so it no longer qualifies as a root node, so we loosen the restriction
|
|
|
1bdc94 |
on which nodes can be considered as the source for a backup.
|
|
|
1bdc94 |
|
|
|
1bdc94 |
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
|
|
|
1bdc94 |
Reviewed-by: Eric Blake <eblake@redhat.com>
|
|
|
1bdc94 |
Signed-off-by: John Snow <jsnow@redhat.com>
|
|
|
1bdc94 |
Message-Id: <20180702194630.9360-2-jsnow@redhat.com>
|
|
|
1bdc94 |
Signed-off-by: Eric Blake <eblake@redhat.com>
|
|
|
1bdc94 |
(cherry picked from commit 930fe17f9900e9c879834f2d2e5c301992623332)
|
|
|
1bdc94 |
Signed-off-by: John Snow <jsnow@redhat.com>
|
|
|
1bdc94 |
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
|
1bdc94 |
---
|
|
|
1bdc94 |
blockdev.c | 4 ++--
|
|
|
1bdc94 |
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
|
1bdc94 |
|
|
|
1bdc94 |
diff --git a/blockdev.c b/blockdev.c
|
|
|
1bdc94 |
index 9beef10..baa7e18 100644
|
|
|
1bdc94 |
--- a/blockdev.c
|
|
|
1bdc94 |
+++ b/blockdev.c
|
|
|
1bdc94 |
@@ -2010,7 +2010,7 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
|
|
|
1bdc94 |
assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
|
|
|
1bdc94 |
backup = common->action->u.blockdev_backup.data;
|
|
|
1bdc94 |
|
|
|
1bdc94 |
- bs = qmp_get_root_bs(backup->device, errp);
|
|
|
1bdc94 |
+ bs = bdrv_lookup_bs(backup->device, backup->device, errp);
|
|
|
1bdc94 |
if (!bs) {
|
|
|
1bdc94 |
return;
|
|
|
1bdc94 |
}
|
|
|
1bdc94 |
@@ -3674,7 +3674,7 @@ BlockJob *do_blockdev_backup(BlockdevBackup *backup, JobTxn *txn,
|
|
|
1bdc94 |
backup->compress = false;
|
|
|
1bdc94 |
}
|
|
|
1bdc94 |
|
|
|
1bdc94 |
- bs = qmp_get_root_bs(backup->device, errp);
|
|
|
1bdc94 |
+ bs = bdrv_lookup_bs(backup->device, backup->device, errp);
|
|
|
1bdc94 |
if (!bs) {
|
|
|
1bdc94 |
return NULL;
|
|
|
1bdc94 |
}
|
|
|
1bdc94 |
--
|
|
|
1bdc94 |
1.8.3.1
|
|
|
1bdc94 |
|