block migration: Fix test for read-only drive

init_blk_migration_it() skips drives with type hint BDRV_TYPE_CDROM.
The intention is to skip read-only drives.  However, BDRV_TYPE_CDROM
is only a hint.  It is currently sufficent for read-only.  But it's
not necessary, and it may not remain sufficient.

Use bdrv_is_read_only() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2010-06-28 10:45:02 +02:00 committed by Kevin Wolf
parent 528f766347
commit d246673dcb
1 changed files with 1 additions and 1 deletions

View File

@ -236,7 +236,7 @@ static void init_blk_migration_it(void *opaque, BlockDriverState *bs)
BlkMigDevState *bmds;
int64_t sectors;
if (bs->type == BDRV_TYPE_HD) {
if (!bdrv_is_read_only(bs)) {
sectors = bdrv_getlength(bs) >> BDRV_SECTOR_BITS;
if (sectors == 0) {
return;