diff options
Diffstat (limited to 'block/qcow2-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 3f461c6..b38390c 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -34,7 +34,7 @@ static int update_refcount(BlockDriverState *bs, /*********************************************************/ /* refcount handling */ -int refcount_init(BlockDriverState *bs) +int qcow2_refcount_init(BlockDriverState *bs) { BDRVQcowState *s = bs->opaque; int ret, refcount_table_size2, i; @@ -55,7 +55,7 @@ int refcount_init(BlockDriverState *bs) return -ENOMEM; } -void refcount_close(BlockDriverState *bs) +void qcow2_refcount_close(BlockDriverState *bs) { BDRVQcowState *s = bs->opaque; qemu_free(s->refcount_block_cache); @@ -154,10 +154,10 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size) s->refcount_table_offset = table_offset; update_refcount(bs, table_offset, new_table_size2, 1); - free_clusters(bs, old_table_offset, old_table_size * sizeof(uint64_t)); + qcow2_free_clusters(bs, old_table_offset, old_table_size * sizeof(uint64_t)); return 0; fail: - free_clusters(bs, table_offset, new_table_size2); + qcow2_free_clusters(bs, table_offset, new_table_size2); qemu_free(new_table); return -EIO; } @@ -334,7 +334,7 @@ retry: return (s->free_cluster_index - nb_clusters) << s->cluster_bits; } -int64_t alloc_clusters(BlockDriverState *bs, int64_t size) +int64_t qcow2_alloc_clusters(BlockDriverState *bs, int64_t size) { int64_t offset; @@ -345,7 +345,7 @@ int64_t alloc_clusters(BlockDriverState *bs, int64_t size) /* only used to allocate compressed sectors. We try to allocate contiguous sectors. size must be <= cluster_size */ -int64_t alloc_bytes(BlockDriverState *bs, int size) +int64_t qcow2_alloc_bytes(BlockDriverState *bs, int size) { BDRVQcowState *s = bs->opaque; int64_t offset, cluster_offset; @@ -353,7 +353,7 @@ int64_t alloc_bytes(BlockDriverState *bs, int size) assert(size > 0 && size <= s->cluster_size); if (s->free_byte_offset == 0) { - s->free_byte_offset = alloc_clusters(bs, s->cluster_size); + s->free_byte_offset = qcow2_alloc_clusters(bs, s->cluster_size); } redo: free_in_cluster = s->cluster_size - @@ -368,7 +368,7 @@ int64_t alloc_bytes(BlockDriverState *bs, int size) if ((offset & (s->cluster_size - 1)) != 0) update_cluster_refcount(bs, offset >> s->cluster_bits, 1); } else { - offset = alloc_clusters(bs, s->cluster_size); + offset = qcow2_alloc_clusters(bs, s->cluster_size); cluster_offset = s->free_byte_offset & ~(s->cluster_size - 1); if ((cluster_offset + s->cluster_size) == offset) { /* we are lucky: contiguous data */ @@ -383,7 +383,7 @@ int64_t alloc_bytes(BlockDriverState *bs, int size) return offset; } -void free_clusters(BlockDriverState *bs, +void qcow2_free_clusters(BlockDriverState *bs, int64_t offset, int64_t size) { update_refcount(bs, offset, size, -1); @@ -396,7 +396,7 @@ void free_clusters(BlockDriverState *bs, * */ -void free_any_clusters(BlockDriverState *bs, +void qcow2_free_any_clusters(BlockDriverState *bs, uint64_t cluster_offset, int nb_clusters) { BDRVQcowState *s = bs->opaque; @@ -407,12 +407,13 @@ void free_any_clusters(BlockDriverState *bs, int nb_csectors; nb_csectors = ((cluster_offset >> s->csize_shift) & s->csize_mask) + 1; - free_clusters(bs, (cluster_offset & s->cluster_offset_mask) & ~511, - nb_csectors * 512); + qcow2_free_clusters(bs, + (cluster_offset & s->cluster_offset_mask) & ~511, + nb_csectors * 512); return; } - free_clusters(bs, cluster_offset, nb_clusters << s->cluster_bits); + qcow2_free_clusters(bs, cluster_offset, nb_clusters << s->cluster_bits); return; } @@ -424,7 +425,8 @@ void free_any_clusters(BlockDriverState *bs, -void create_refcount_update(QCowCreateState *s, int64_t offset, int64_t size) +void qcow2_create_refcount_update(QCowCreateState *s, int64_t offset, + int64_t size) { int refcount; int64_t start, last, cluster_offset; @@ -442,17 +444,15 @@ void create_refcount_update(QCowCreateState *s, int64_t offset, int64_t size) } /* update the refcounts of snapshots and the copied flag */ -int update_snapshot_refcount(BlockDriverState *bs, - int64_t l1_table_offset, - int l1_size, - int addend) +int qcow2_update_snapshot_refcount(BlockDriverState *bs, + int64_t l1_table_offset, int l1_size, int addend) { BDRVQcowState *s = bs->opaque; uint64_t *l1_table, *l2_table, l2_offset, offset, l1_size2, l1_allocated; int64_t old_offset, old_l2_offset; int l2_size, i, j, l1_modified, l2_modified, nb_csectors, refcount; - l2_cache_reset(bs); + qcow2_l2_cache_reset(bs); l2_table = NULL; l1_table = NULL; @@ -771,7 +771,7 @@ fail: * Returns 0 if no errors are found, the number of errors in case the image is * detected as corrupted, and -errno when an internal error occured. */ -int check_refcounts(BlockDriverState *bs) +int qcow2_check_refcounts(BlockDriverState *bs) { BDRVQcowState *s = bs->opaque; int64_t size; |