raw: Implement copy offloading
Just pass down to ->file.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20180601092648.24614-4-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/block/raw-format.c b/block/raw-format.c
index b69a067..f2e468d 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -497,6 +497,36 @@
return bdrv_probe_geometry(bs->file->bs, geo);
}
+static int coroutine_fn raw_co_copy_range_from(BlockDriverState *bs,
+ BdrvChild *src, uint64_t src_offset,
+ BdrvChild *dst, uint64_t dst_offset,
+ uint64_t bytes, BdrvRequestFlags flags)
+{
+ int ret;
+
+ ret = raw_adjust_offset(bs, &src_offset, bytes, false);
+ if (ret) {
+ return ret;
+ }
+ return bdrv_co_copy_range_from(bs->file, src_offset, dst, dst_offset,
+ bytes, flags);
+}
+
+static int coroutine_fn raw_co_copy_range_to(BlockDriverState *bs,
+ BdrvChild *src, uint64_t src_offset,
+ BdrvChild *dst, uint64_t dst_offset,
+ uint64_t bytes, BdrvRequestFlags flags)
+{
+ int ret;
+
+ ret = raw_adjust_offset(bs, &dst_offset, bytes, true);
+ if (ret) {
+ return ret;
+ }
+ return bdrv_co_copy_range_to(src, src_offset, bs->file, dst_offset, bytes,
+ flags);
+}
+
BlockDriver bdrv_raw = {
.format_name = "raw",
.instance_size = sizeof(BDRVRawState),
@@ -513,6 +543,8 @@
.bdrv_co_pwrite_zeroes = &raw_co_pwrite_zeroes,
.bdrv_co_pdiscard = &raw_co_pdiscard,
.bdrv_co_block_status = &raw_co_block_status,
+ .bdrv_co_copy_range_from = &raw_co_copy_range_from,
+ .bdrv_co_copy_range_to = &raw_co_copy_range_to,
.bdrv_truncate = &raw_truncate,
.bdrv_getlength = &raw_getlength,
.has_variable_length = true,
