diff options
| author | Fam Zheng | 2018-06-01 11:26:41 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi | 2018-06-01 15:41:47 +0200 |
| commit | 72d219e2f916adeec9845473d239571a267f3314 (patch) | |
| tree | 5796904682ffbcaa846713713b5c65f3895b08fd /block | |
| parent | raw: Check byte range uniformly (diff) | |
| download | qemu-72d219e2f916adeec9845473d239571a267f3314.tar.gz qemu-72d219e2f916adeec9845473d239571a267f3314.tar.xz qemu-72d219e2f916adeec9845473d239571a267f3314.zip | |
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>
Diffstat (limited to 'block')
| -rw-r--r-- | block/raw-format.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/block/raw-format.c b/block/raw-format.c index b69a0674b3..f2e468df6f 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -497,6 +497,36 @@ 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) +{ + 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 @@ 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, |