On 2013年11月27日 00:18, Paolo Bonzini wrote:
Il 26/11/2013 05:05, Fam Zheng ha scritto:+ if (backing_bs && *backing_bs != '\0') { + bs->backing_hd = bdrv_find(backing_bs); + if (!bs->backing_hd) { + error_setg(errp, "Backing device not found: %s", backing_bs); + return -ENOENT; + } + bdrv_ref(bs->backing_hd); + assert(!bs->backing_blocker); + error_setg(&bs->backing_blocker, + "device is used as backing hd of '%s'", + bs->device_name); + bdrv_op_block_all(bs->backing_hd, bs->backing_blocker);Why should this blocker only apply to the "named backing file" case, and not to all backing files?
Good point, thanks. Fam
