| Message ID | 20180509145815.3330-3-famz@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 05/09/2018 09:58 AM, Fam Zheng wrote: > Just pass down to ->file. > > Signed-off-by: Fam Zheng <famz@redhat.com> > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> > --- > 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); Bug - this fails to take into account s->offset, which occurs when opening a raw format protocol over a subset of the overall format protocol.
On Wed, 05/09 10:17, Eric Blake wrote: > On 05/09/2018 09:58 AM, Fam Zheng wrote: > > Just pass down to ->file. > > > > Signed-off-by: Fam Zheng <famz@redhat.com> > > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> > > --- > > 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); > > Bug - this fails to take into account s->offset, which occurs when opening a > raw format protocol over a subset of the overall format protocol. Good catch. I'll fix it in v4. Thanks. Fam
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,