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block/backup: hoist bitmap check into QMP interface

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This is nicer to do in the unified QMP interface that we have now,
because it lets us use the right terminology back at the user.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-5-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2019-07-29 16:35:55 -04:00
parent 0af2a09c6b
commit a6c9365ad4
2 changed files with 14 additions and 9 deletions
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10
blockdev.c
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@ -3529,6 +3529,16 @@ static BlockJob *do_backup_common(BackupCommon *backup,
return NULL;
}
if ((backup->sync == MIRROR_SYNC_MODE_BITMAP) ||
(backup->sync == MIRROR_SYNC_MODE_INCREMENTAL)) {
/* done before desugaring 'incremental' to print the right message */
if (!backup->has_bitmap) {
error_setg(errp, "must provide a valid bitmap name for "
"'%s' sync mode", MirrorSyncMode_str(backup->sync));
return NULL;
}
}
if (backup->sync == MIRROR_SYNC_MODE_INCREMENTAL) {
if (backup->has_bitmap_mode &&
backup->bitmap_mode != BITMAP_SYNC_MODE_ON_SUCCESS) {