[Qemu-devel] [PATCH 03/10] block/json: Add functions for cache control

[Max Reitz <mreitz@redhat.com>]

Add passthrough functions for bdrv_aio_flush() and
bdrv_invalidate_cache().

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 block/json.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/block/json.c b/block/json.c
index 6d63cf6..2f885cc 100644
--- a/block/json.c
+++ b/block/json.c
@@ -91,6 +91,18 @@ static BlockDriverAIOCB *json_aio_writev(BlockDriverState *bs,
     return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
 }
 
+static BlockDriverAIOCB *json_aio_flush(BlockDriverState *bs,
+                                        BlockDriverCompletionFunc *cb,
+                                        void *opaque)
+{
+    return bdrv_aio_flush(bs->file, cb, opaque);
+}
+
+static void json_invalidate_cache(BlockDriverState *bs)
+{
+    return bdrv_invalidate_cache(bs->file);
+}
+
 static int64_t json_getlength(BlockDriverState *bs)
 {
     return bdrv_getlength(bs->file);
@@ -118,6 +130,9 @@ static BlockDriver bdrv_json = {
 
     .bdrv_aio_readv             = json_aio_readv,
     .bdrv_aio_writev            = json_aio_writev,
+    .bdrv_aio_flush             = json_aio_flush,
+
+    .bdrv_invalidate_cache      = json_invalidate_cache,
 
     .has_variable_length        = true,
     .bdrv_getlength             = json_getlength,
-- 
1.9.0