diff options
Diffstat (limited to 'block/qcow2-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 80 |
1 files changed, 41 insertions, 39 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 996d1217d0..0266542cee 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -229,9 +229,9 @@ static void set_refcount_ro6(void *refcount_array, uint64_t index, } -static int load_refcount_block(BlockDriverState *bs, - int64_t refcount_block_offset, - void **refcount_block) +static int GRAPH_RDLOCK +load_refcount_block(BlockDriverState *bs, int64_t refcount_block_offset, + void **refcount_block) { BDRVQcow2State *s = bs->opaque; @@ -302,8 +302,9 @@ static int in_same_refcount_block(BDRVQcow2State *s, uint64_t offset_a, * * Returns 0 on success or -errno in error case */ -static int alloc_refcount_block(BlockDriverState *bs, - int64_t cluster_index, void **refcount_block) +static int GRAPH_RDLOCK +alloc_refcount_block(BlockDriverState *bs, int64_t cluster_index, + void **refcount_block) { BDRVQcow2State *s = bs->opaque; unsigned int refcount_table_index; @@ -806,12 +807,9 @@ found: /* XXX: cache several refcount block clusters ? */ /* @addend is the absolute value of the addend; if @decrease is set, @addend * will be subtracted from the current refcount, otherwise it will be added */ -static int update_refcount(BlockDriverState *bs, - int64_t offset, - int64_t length, - uint64_t addend, - bool decrease, - enum qcow2_discard_type type) +static int GRAPH_RDLOCK +update_refcount(BlockDriverState *bs, int64_t offset, int64_t length, + uint64_t addend, bool decrease, enum qcow2_discard_type type) { BDRVQcow2State *s = bs->opaque; int64_t start, last, cluster_offset; @@ -967,8 +965,8 @@ int qcow2_update_cluster_refcount(BlockDriverState *bs, /* return < 0 if error */ -static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size, - uint64_t max) +static int64_t GRAPH_RDLOCK +alloc_clusters_noref(BlockDriverState *bs, uint64_t size, uint64_t max) { BDRVQcow2State *s = bs->opaque; uint64_t i, nb_clusters, refcount; @@ -2302,7 +2300,7 @@ calculate_refcounts(BlockDriverState *bs, BdrvCheckResult *res, * Compares the actual reference count for each cluster in the image against the * refcount as reported by the refcount structures on-disk. */ -static void coroutine_fn +static void coroutine_fn GRAPH_RDLOCK compare_refcounts(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix, bool *rebuild, int64_t *highest_cluster, @@ -3103,20 +3101,22 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset, * * @allocated should be set to true if a new cluster has been allocated. */ -typedef int (RefblockFinishOp)(BlockDriverState *bs, uint64_t **reftable, - uint64_t reftable_index, uint64_t *reftable_size, - void *refblock, bool refblock_empty, - bool *allocated, Error **errp); +typedef int /* GRAPH_RDLOCK_PTR */ + (RefblockFinishOp)(BlockDriverState *bs, uint64_t **reftable, + uint64_t reftable_index, uint64_t *reftable_size, + void *refblock, bool refblock_empty, + bool *allocated, Error **errp); /** * This "operation" for walk_over_reftable() allocates the refblock on disk (if * it is not empty) and inserts its offset into the new reftable. The size of * this new reftable is increased as required. */ -static int alloc_refblock(BlockDriverState *bs, uint64_t **reftable, - uint64_t reftable_index, uint64_t *reftable_size, - void *refblock, bool refblock_empty, bool *allocated, - Error **errp) +static int GRAPH_RDLOCK +alloc_refblock(BlockDriverState *bs, uint64_t **reftable, + uint64_t reftable_index, uint64_t *reftable_size, + void *refblock, bool refblock_empty, bool *allocated, + Error **errp) { BDRVQcow2State *s = bs->opaque; int64_t offset; @@ -3166,10 +3166,11 @@ static int alloc_refblock(BlockDriverState *bs, uint64_t **reftable, * offset specified by the new reftable's entry. It does not modify the new * reftable or change any refcounts. */ -static int flush_refblock(BlockDriverState *bs, uint64_t **reftable, - uint64_t reftable_index, uint64_t *reftable_size, - void *refblock, bool refblock_empty, bool *allocated, - Error **errp) +static int GRAPH_RDLOCK +flush_refblock(BlockDriverState *bs, uint64_t **reftable, + uint64_t reftable_index, uint64_t *reftable_size, + void *refblock, bool refblock_empty, bool *allocated, + Error **errp) { BDRVQcow2State *s = bs->opaque; int64_t offset; @@ -3210,16 +3211,17 @@ static int flush_refblock(BlockDriverState *bs, uint64_t **reftable, * * @allocated is set to true if a new cluster has been allocated. */ -static int walk_over_reftable(BlockDriverState *bs, uint64_t **new_reftable, - uint64_t *new_reftable_index, - uint64_t *new_reftable_size, - void *new_refblock, int new_refblock_size, - int new_refcount_bits, - RefblockFinishOp *operation, bool *allocated, - Qcow2SetRefcountFunc *new_set_refcount, - BlockDriverAmendStatusCB *status_cb, - void *cb_opaque, int index, int total, - Error **errp) +static int GRAPH_RDLOCK +walk_over_reftable(BlockDriverState *bs, uint64_t **new_reftable, + uint64_t *new_reftable_index, + uint64_t *new_reftable_size, + void *new_refblock, int new_refblock_size, + int new_refcount_bits, + RefblockFinishOp *operation, bool *allocated, + Qcow2SetRefcountFunc *new_set_refcount, + BlockDriverAmendStatusCB *status_cb, + void *cb_opaque, int index, int total, + Error **errp) { BDRVQcow2State *s = bs->opaque; uint64_t reftable_index; @@ -3545,8 +3547,8 @@ done: return ret; } -static int64_t coroutine_fn get_refblock_offset(BlockDriverState *bs, - uint64_t offset) +static int64_t coroutine_fn GRAPH_RDLOCK +get_refblock_offset(BlockDriverState *bs, uint64_t offset) { BDRVQcow2State *s = bs->opaque; uint32_t index = offset_to_reftable_index(s, offset); @@ -3565,7 +3567,7 @@ static int64_t coroutine_fn get_refblock_offset(BlockDriverState *bs, return covering_refblock_offset; } -static int coroutine_fn +static int coroutine_fn GRAPH_RDLOCK qcow2_discard_refcount_block(BlockDriverState *bs, uint64_t discard_block_offs) { BDRVQcow2State *s = bs->opaque; |