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authorStefan Hajnoczi <stefanha@redhat.com>2015-07-09 10:56:45 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2015-12-22 16:01:07 +0800
commit648296e067e617e140032c0ab329fb89ffb92aaa (patch)
treed25362f4c479657492c45e88175d9cb125a61aff
parentbd44feb754bdb1354f9813ca5dfe883f3d058193 (diff)
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block-backend: add blk_get_max_iov()
Add a function to query BlockLimits.max_iov. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-rw-r--r--block/block-backend.c5
-rw-r--r--include/sysemu/block-backend.h1
2 files changed, 6 insertions, 0 deletions
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_transfer_length(BlockBackend *blk)
}
}
+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;
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_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);
+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);