diff options
| author | John Snow <jsnow@redhat.com> | 2019-07-29 16:35:52 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2019-08-16 16:28:02 -0400 |
| commit | c8b56501780615f709d96419fd718ca562d41c46 (patch) | |
| tree | 8b52259a49f81a7405f8f94f511892416ad7c14f /block/mirror.c | |
| parent | 00a463b1dc73d1665ce6720df4de052aff95acf8 (diff) | |
block/backup: Add mirror sync mode 'bitmap'
We don't need or want a new sync mode for simple differences in
semantics. Create a new mode simply named "BITMAP" that is designed to
make use of the new Bitmap Sync Mode field.
Because the only bitmap sync mode is 'on-success', this adds no new
functionality to the backup job (yet). The old incremental backup mode
is maintained as a syntactic sugar for sync=bitmap, mode=on-success.
Add all of the plumbing necessary to support this new instruction.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/mirror.c b/block/mirror.c index 9b36391bb9..70f24d9ef6 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1755,8 +1755,10 @@ void mirror_start(const char *job_id, BlockDriverState *bs, bool is_none_mode; BlockDriverState *base; - if (mode == MIRROR_SYNC_MODE_INCREMENTAL) { - error_setg(errp, "Sync mode 'incremental' not supported"); + if ((mode == MIRROR_SYNC_MODE_INCREMENTAL) || + (mode == MIRROR_SYNC_MODE_BITMAP)) { + error_setg(errp, "Sync mode '%s' not supported", + MirrorSyncMode_str(mode)); return; } is_none_mode = mode == MIRROR_SYNC_MODE_NONE; |