| Message ID | bebe4058df5210ac3293e917ad6b61abac398f60.1577014346.git.berto@igalia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add subcluster allocation to qcow2 | expand |
On 12/22/19 5:36 AM, Alberto Garcia wrote: > This function will be used by the qcow2 code to check if an image has > subclusters or not. > > At the moment this simply returns false. Once all patches needed for > subcluster support are ready then QEMU will be able to create and > read images with subclusters and this function will return the actual > value. > > Signed-off-by: Alberto Garcia <berto@igalia.com> > --- > block/qcow2.h | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Eric Blake <eblake@redhat.com> > > diff --git a/block/qcow2.h b/block/qcow2.h > index 6823d3f68f..1db3fc5dbc 100644 > --- a/block/qcow2.h > +++ b/block/qcow2.h > @@ -495,6 +495,12 @@ typedef enum QCow2MetadataOverlap { > > #define INV_OFFSET (-1ULL) > > +static inline bool has_subclusters(BDRVQcow2State *s) > +{ > + /* FIXME: Return false until this feature is complete */ > + return false; > +} > + > static inline uint64_t get_l2_entry(BDRVQcow2State *s, uint64_t *l2_slice, > int idx) > { >
On 22.12.19 12:36, Alberto Garcia wrote: > This function will be used by the qcow2 code to check if an image has > subclusters or not. > > At the moment this simply returns false. Once all patches needed for > subcluster support are ready then QEMU will be able to create and > read images with subclusters and this function will return the actual > value. > > Signed-off-by: Alberto Garcia <berto@igalia.com> > --- > block/qcow2.h | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Max Reitz <mreitz@redhat.com>
diff --git a/block/qcow2.h b/block/qcow2.h index 6823d3f68f..1db3fc5dbc 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -495,6 +495,12 @@ typedef enum QCow2MetadataOverlap { #define INV_OFFSET (-1ULL) +static inline bool has_subclusters(BDRVQcow2State *s) +{ + /* FIXME: Return false until this feature is complete */ + return false; +} + static inline uint64_t get_l2_entry(BDRVQcow2State *s, uint64_t *l2_slice, int idx) {
This function will be used by the qcow2 code to check if an image has subclusters or not. At the moment this simply returns false. Once all patches needed for subcluster support are ready then QEMU will be able to create and read images with subclusters and this function will return the actual value. Signed-off-by: Alberto Garcia <berto@igalia.com> --- block/qcow2.h | 6 ++++++ 1 file changed, 6 insertions(+)