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migration: add_bitmaps_to_list: check disk name once 

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200521220648.3255-6-vsementsov@virtuozzo.com>
[eblake: shorter subject line]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2020-05-22 01:06:47 +03:00 committed by Eric Blake
parent ae00aa2398
commit 82640edb88
1 changed files with 11 additions and 6 deletions
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17
migration/block-dirty-bitmap.c
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@ -274,17 +274,22 @@ static int add_bitmaps_to_list(BlockDriverState *bs, const char *bs_name)
DirtyBitmapMigBitmapState *dbms;
Error *local_err = NULL;
bitmap = bdrv_dirty_bitmap_first(bs);
if (!bitmap) {
return 0;
}
if (!bs_name || strcmp(bs_name, "") == 0) {
error_report("Bitmap '%s' in unnamed node can't be migrated",
bdrv_dirty_bitmap_name(bitmap));
return -1;
}
FOR_EACH_DIRTY_BITMAP(bs, bitmap) {
if (!bdrv_dirty_bitmap_name(bitmap)) {
continue;
}
if (!bs_name || strcmp(bs_name, "") == 0) {
error_report("Found bitmap '%s' in unnamed node %p. It can't "
"be migrated", bdrv_dirty_bitmap_name(bitmap), bs);
return -1;
}
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, &local_err)) {
error_report_err(local_err);
return -1;