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qcow2: Drop l2meta.cluster_offset

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There's no real reason to have an l2meta for normal requests that don't
allocate anything. Before we can get rid of it, we must return the host
cluster offset in a different way.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2012-12-07 18:08:45 +01:00
parent cf5c1a231e
commit 060bee8943
3 changed files with 14 additions and 15 deletions
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5
block/qcow2.h
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@ -213,9 +213,6 @@ typedef struct QCowL2Meta
/** Guest offset of the first newly allocated cluster */
uint64_t offset;
/** Host offset of the first cluster of the request */
uint64_t cluster_offset;
/** Host offset of the first newly allocated cluster */
uint64_t alloc_offset;
@ -336,7 +333,7 @@ void qcow2_encrypt_sectors(BDRVQcowState *s, int64_t sector_num,
int qcow2_get_cluster_offset(BlockDriverState *bs, uint64_t offset,
int *num, uint64_t *cluster_offset);
int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset,
int n_start, int n_end, int *num, QCowL2Meta *m);
int n_start, int n_end, int *num, uint64_t *host_offset, QCowL2Meta *m);
uint64_t qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs,
uint64_t offset,
int compressed_size);