diff options
| author | Alberto Garcia <berto@igalia.com> | 2019-03-12 18:48:42 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-03-12 20:30:14 +0100 |
| commit | ef53dc09ed6aacca12aeb204258779273ba513ca (patch) | |
| tree | a4915628040d0b5e79b9dcc6e0659de2d4ff5846 /block/mirror.c | |
| parent | df827336abd072cf71aa6990a12ce13187b22861 (diff) | |
| download | qemu-ef53dc09ed6aacca12aeb204258779273ba513ca.zip | |
block: Freeze the backing chain for the duration of the mirror job
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/mirror.c b/block/mirror.c index 726d3c27fb..010fdafd79 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -630,6 +630,10 @@ static int mirror_exit_common(Job *job) } s->prepared = true; + if (bdrv_chain_contains(src, target_bs)) { + bdrv_unfreeze_backing_chain(mirror_top_bs, target_bs); + } + bdrv_release_dirty_bitmap(src, s->dirty_bitmap); /* Make sure that the source BDS doesn't go away during bdrv_replace_node, @@ -1639,6 +1643,10 @@ static void mirror_start_job(const char *job_id, BlockDriverState *bs, goto fail; } } + + if (bdrv_freeze_backing_chain(mirror_top_bs, target, errp) < 0) { + goto fail; + } } QTAILQ_INIT(&s->ops_in_flight); |