commit 648296e067e617e140032c0ab329fb89ffb92aaa
author Stefan Hajnoczi <stefanha@redhat.com> Thu Jul 09 10:56:45 2015 +0100
committer Stefan Hajnoczi <stefanha@redhat.com> Tue Dec 22 16:01:07 2015 +0800
tree d25362f4c479657492c45e88175d9cb125a61aff
parent bd44feb754bdb1354f9813ca5dfe883f3d058193

block-backend: add blk_get_max_iov()

Add a function to query BlockLimits.max_iov.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

block/block-backend.c

diff --git a/block/block-backend.c b/block/block-backend.c
index 36ccc9e..f41d326 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1023,6 +1023,11 @@
     }
 }
 
+int blk_get_max_iov(BlockBackend *blk)
+{
+    return blk->bs->bl.max_iov;
+}
+
 void blk_set_guest_block_size(BlockBackend *blk, int align)
 {
     blk->guest_block_size = align;

include/sysemu/block-backend.h

diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index fb068ea4..dc24476 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -146,6 +146,7 @@
 void blk_eject(BlockBackend *blk, bool eject_flag);
 int blk_get_flags(BlockBackend *blk);
 int blk_get_max_transfer_length(BlockBackend *blk);
+int blk_get_max_iov(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);