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[Qemu-block] [RFC PATCH v2 6/7] block-backend: Add blk_co_copy_range
From: |
Fam Zheng |
Subject: |
[Qemu-block] [RFC PATCH v2 6/7] block-backend: Add blk_co_copy_range |
Date: |
Wed, 18 Apr 2018 11:04:23 +0800 |
It's a BlockBackend wrapper of the BDS interface.
Signed-off-by: Fam Zheng <address@hidden>
---
block/block-backend.c | 9 +++++++++
include/sysemu/block-backend.h | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/block/block-backend.c b/block/block-backend.c
index 681b240b12..2a984b1864 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2217,3 +2217,12 @@ void blk_unregister_buf(BlockBackend *blk, void *host)
{
bdrv_unregister_buf(blk_bs(blk), host);
}
+
+int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
+ BlockBackend *blk_out, int64_t off_out,
+ int bytes, BdrvRequestFlags flags)
+{
+ return bdrv_co_copy_range(blk_in->root, off_in,
+ blk_out->root, off_out,
+ bytes, flags);
+}
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 92ab624fac..6f043b6b51 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -232,4 +232,8 @@ void blk_set_force_allow_inactivate(BlockBackend *blk);
void blk_register_buf(BlockBackend *blk, void *host, size_t size);
void blk_unregister_buf(BlockBackend *blk, void *host);
+int blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
+ BlockBackend *blk_out, int64_t off_out,
+ int bytes, BdrvRequestFlags flags);
+
#endif
--
2.14.3
- [Qemu-block] [RFC PATCH v2 1/7] block: Introduce API for copy offloading, (continued)
- [Qemu-block] [RFC PATCH v2 1/7] block: Introduce API for copy offloading, Fam Zheng, 2018/04/17
- [Qemu-block] [RFC PATCH v2 2/7] raw: Implement copy offloading, Fam Zheng, 2018/04/17
- [Qemu-block] [RFC PATCH v2 3/7] qcow2: Implement copy offloading, Fam Zheng, 2018/04/17
- [Qemu-block] [RFC PATCH v2 4/7] file-posix: Implement bdrv_co_copy_range, Fam Zheng, 2018/04/17
- [Qemu-block] [RFC PATCH v2 5/7] iscsi: Implement copy offloading, Fam Zheng, 2018/04/17
- [Qemu-block] [RFC PATCH v2 6/7] block-backend: Add blk_co_copy_range,
Fam Zheng <=
- [Qemu-block] [RFC PATCH v2 7/7] qemu-img: Convert with copy offloading, Fam Zheng, 2018/04/17