diff options
| author | Max Reitz <mreitz@redhat.com> | 2015-02-10 15:28:48 -0500 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-03-10 14:02:21 +0100 |
| commit | 0e06528e980b8ac7695a219f8405d3cdc52a1381 (patch) | |
| tree | fa20bdce42cbd7327792f009dff30cf721978694 /block/qcow2.h | |
| parent | 2aabe7c7a16cee6b1b54592fa05b5f9c23c89bc0 (diff) | |
qcow2: Use 64 bits for refcount values
Refcounts may have a width of up to 64 bits, so qemu should use the same
width to represent refcount values internally.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 40910d817d..a9108f55ca 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -459,7 +459,7 @@ static inline uint64_t l2meta_cow_end(QCowL2Meta *m) + (m->cow_end.nb_sectors << BDRV_SECTOR_BITS); } -static inline uint16_t refcount_diff(uint16_t r1, uint16_t r2) +static inline uint64_t refcount_diff(uint64_t r1, uint64_t r2) { return r1 > r2 ? r1 - r2 : r2 - r1; } @@ -484,10 +484,10 @@ int qcow2_refcount_init(BlockDriverState *bs); void qcow2_refcount_close(BlockDriverState *bs); int qcow2_get_refcount(BlockDriverState *bs, int64_t cluster_index, - uint16_t *refcount); + uint64_t *refcount); int qcow2_update_cluster_refcount(BlockDriverState *bs, int64_t cluster_index, - uint16_t addend, bool decrease, + uint64_t addend, bool decrease, enum qcow2_discard_type type); int64_t qcow2_alloc_clusters(BlockDriverState *bs, uint64_t size); |