[Qemu-devel] [RFC PATCH V2 3/4] block-backend: expose bs->bl.max_transfer_length

[Peter Lieven <pl@kamp.de>]

Signed-off-by: Peter Lieven <pl@kamp.de>
---
 block/block-backend.c          |    5 +++++
 include/sysemu/block-backend.h |    1 +
 2 files changed, 6 insertions(+)

diff --git a/block/block-backend.c b/block/block-backend.c
index d0692b1..545580f 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -569,6 +569,11 @@ int blk_get_flags(BlockBackend *blk)
     return bdrv_get_flags(blk->bs);
 }
 
+int blk_get_max_transfer_length(BlockBackend *blk)
+{
+    return blk->bs->bl.max_transfer_length;
+}
+
 void blk_set_guest_block_size(BlockBackend *blk, int align)
 {
     bdrv_set_guest_block_size(blk->bs, align);
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 52d13c1..b3243cb 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -124,6 +124,7 @@ int blk_is_inserted(BlockBackend *blk);
 void blk_lock_medium(BlockBackend *blk, bool locked);
 void blk_eject(BlockBackend *blk, bool eject_flag);
 int blk_get_flags(BlockBackend *blk);
+int blk_get_max_transfer_length(BlockBackend *blk);
 void blk_set_guest_block_size(BlockBackend *blk, int align);
 void *blk_blockalign(BlockBackend *blk, size_t size);
 bool blk_op_is_blocked(BlockBackend *blk, BlockOpType op, Error **errp);
-- 
1.7.9.5