On 06/01/2017 10:50 PM, Eric Blake wrote:
On 06/01/2017 10:14 AM, Anton Nefedov wrote:
Support the flag if the underlying BDS supports it
Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com>
---
block/blkdebug.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Shouldn't other passthrough drivers (like raw-format.c) make this change
as well?
Right.
Wonder why they even enumerate those instead of just
bs->supported_zero_flags = bs->file->bs->supported_zero_flags;
diff --git a/block/blkdebug.c b/block/blkdebug.c
index a5196e8..8b1401b 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -415,7 +415,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict
*options, int flags,
bs->supported_write_flags = BDRV_REQ_FUA &
bs->file->bs->supported_write_flags;
- bs->supported_zero_flags = (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ bs->supported_zero_flags =
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_ALLOCATE) &
bs->file->bs->supported_zero_flags;
ret = -EINVAL;
/Anton
