Signed-off-by: Peter Lieven <p...@kamp.de>
---
include/block/block_int.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 85c3474..692b9ed 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -280,6 +280,18 @@ struct BlockDriverState {
/* the memory alignment required for the buffers handled by this driver */
int buffer_alignment;
+ /* maximum number of sectors that can be discarded at once */
+ int max_discard;
+
+ /* optimal alignment for discard requests in sectors */
+ int64_t discard_alignment;
+
+ /* maximum number of sectors that can zeroized at once */
+ int max_write_zeroes;
+
+ /* optimal alignment for write zeroes requests in sectors */
+ int64_t write_zeroes_alignment;
+
/* do we need to tell the quest if we have a volatile write cache? */
int enable_write_cache;
--
1.7.9.5
