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authorPaolo Bonzini <pbonzini@redhat.com>2013-01-22 09:03:13 +0100
committerKevin Wolf <kwolf@redhat.com>2013-01-25 18:18:34 +0100
commit08e4ed6cdeeee7912072cf14aa8ab6c60dacb4fb (patch)
tree476d2229546a51ab953db9d1622ae7ffa72f82f1 /include/block
parentbd48bde8f0fa08dfc8edcafc2bc8aa6d43734463 (diff)
downloadqemu-08e4ed6cdeeee7912072cf14aa8ab6c60dacb4fb.tar.gz
mirror: add buf-size argument to drive-mirror
This makes sense when the next commit starts using the extra buffer space to perform many I/O operations asynchronously. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
-rw-r--r--include/block/block_int.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 1165339fd1..f7279b978a 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -345,6 +345,7 @@ void commit_start(BlockDriverState *bs, BlockDriverState *base,
* @target: Block device to write to.
* @speed: The maximum speed, in bytes per second, or 0 for unlimited.
* @granularity: The chosen granularity for the dirty bitmap.
+ * @buf_size: The amount of data that can be in flight at one time.
* @mode: Whether to collapse all images in the chain to the target.
* @on_source_error: The action to take upon error reading from the source.
* @on_target_error: The action to take upon error writing to the target.
@@ -358,8 +359,8 @@ void commit_start(BlockDriverState *bs, BlockDriverState *base,
* @bs will be switched to read from @target.
*/
void mirror_start(BlockDriverState *bs, BlockDriverState *target,
- int64_t speed, int64_t granularity, MirrorSyncMode mode,
- BlockdevOnError on_source_error,
+ int64_t speed, int64_t granularity, int64_t buf_size,
+ MirrorSyncMode mode, BlockdevOnError on_source_error,
BlockdevOnError on_target_error,
BlockDriverCompletionFunc *cb,
void *opaque, Error **errp);