On 03.07.2013 16:34, Paolo Bonzini wrote:
Protocols return raw data, so you can assume the offsets to pass
through unchanged.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
block.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index cd371cd..ff8ced7 100644
--- a/block.c
+++ b/block.c
@@ -2977,7 +2977,11 @@ static int64_t coroutine_fn
bdrv_co_get_block_status(BlockDriverState *bs,
if (!bs->drv->bdrv_co_get_block_status) {
*pnum = nb_sectors;
- return BDRV_BLOCK_DATA;
+ ret = BDRV_BLOCK_DATA;
+ if (bs->drv->protocol_name) {
+ ret |= BDRV_BLOCK_OFFSET_VALID | (sector_num * BDRV_SECTOR_SIZE);
+ }
+ return ret;
}
ret = bs->drv->bdrv_co_get_block_status(bs, sector_num, nb_sectors, pnum);
I am curious if this is right. Doesn't this mean we say that at offset
sector_num * BDRV_SECTOR_SIZE are nb_sectors of linear data? This is
something we do not know for sure.
Peter
