Message ID | 1450936225-4249-12-git-send-email-famz@redhat.com |
---|---|
State | New |
Headers | show |
On 24.12.2015 06:50, Fam Zheng wrote: > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> > Signed-off-by: Fam Zheng <famz@redhat.com> > --- > block/vmdk.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/block/vmdk.c b/block/vmdk.c > index f5a56fd..b60a5af 100644 > --- a/block/vmdk.c > +++ b/block/vmdk.c > @@ -1265,6 +1265,7 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, > 0, 0); > qemu_co_mutex_unlock(&s->lock); > > + index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); > switch (ret) { > case VMDK_ERROR: > ret = -EIO; > @@ -1276,15 +1277,13 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, > ret = BDRV_BLOCK_ZERO; > break; > case VMDK_OK: > - ret = BDRV_BLOCK_DATA; > - if (extent->file == bs->file && !extent->compressed) { > - ret |= BDRV_BLOCK_OFFSET_VALID | offset; > - } > - > + ret = BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID; > + ret |= (offset + (index_in_cluster << BDRV_SECTOR_BITS)) > + & BDRV_BLOCK_OFFSET_MASK; > + *file = extent->file->bs; What if the extent is compressed? Max > break; > } > > - index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); > n = extent->cluster_sectors - index_in_cluster; > if (n > nb_sectors) { > n = nb_sectors; >
On Mon, 01/04 21:48, Max Reitz wrote: > On 24.12.2015 06:50, Fam Zheng wrote: > > Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> > > Signed-off-by: Fam Zheng <famz@redhat.com> > > --- > > block/vmdk.c | 11 +++++------ > > 1 file changed, 5 insertions(+), 6 deletions(-) > > > > diff --git a/block/vmdk.c b/block/vmdk.c > > index f5a56fd..b60a5af 100644 > > --- a/block/vmdk.c > > +++ b/block/vmdk.c > > @@ -1265,6 +1265,7 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, > > 0, 0); > > qemu_co_mutex_unlock(&s->lock); > > > > + index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); > > switch (ret) { > > case VMDK_ERROR: > > ret = -EIO; > > @@ -1276,15 +1277,13 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, > > ret = BDRV_BLOCK_ZERO; > > break; > > case VMDK_OK: > > - ret = BDRV_BLOCK_DATA; > > - if (extent->file == bs->file && !extent->compressed) { > > - ret |= BDRV_BLOCK_OFFSET_VALID | offset; > > - } > > - > > + ret = BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID; > > + ret |= (offset + (index_in_cluster << BDRV_SECTOR_BITS)) > > + & BDRV_BLOCK_OFFSET_MASK; > > + *file = extent->file->bs; > > What if the extent is compressed? > You're right, the offset shouldn't be set if compressed. Will fix. Thanks! Fam
diff --git a/block/vmdk.c b/block/vmdk.c index f5a56fd..b60a5af 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1265,6 +1265,7 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, 0, 0); qemu_co_mutex_unlock(&s->lock); + index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); switch (ret) { case VMDK_ERROR: ret = -EIO; @@ -1276,15 +1277,13 @@ static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs, ret = BDRV_BLOCK_ZERO; break; case VMDK_OK: - ret = BDRV_BLOCK_DATA; - if (extent->file == bs->file && !extent->compressed) { - ret |= BDRV_BLOCK_OFFSET_VALID | offset; - } - + ret = BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID; + ret |= (offset + (index_in_cluster << BDRV_SECTOR_BITS)) + & BDRV_BLOCK_OFFSET_MASK; + *file = extent->file->bs; break; } - index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num); n = extent->cluster_sectors - index_in_cluster; if (n > nb_sectors) { n = nb_sectors;