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[Qemu-devel] [PATCH v3 2/9] raw: Implement copy offloading
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v3 2/9] raw: Implement copy offloading |
Date: |
Wed, 9 May 2018 22:58:08 +0800 |
Just pass down to ->file.
Signed-off-by: Fam Zheng <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
block/raw-format.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/block/raw-format.c b/block/raw-format.c
index a378547c99..febddf00c0 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -482,6 +482,24 @@ static int raw_probe_geometry(BlockDriverState *bs,
HDGeometry *geo)
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)
+{
+ 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)
+{
+ 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),
@@ -498,6 +516,8 @@ BlockDriver bdrv_raw = {
.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,
--
2.14.3