#define BLOCK_QCOW2_H
#include "aes.h"
+#include "qemu-coroutine.h"
//#define DEBUG_ALLOC
//#define DEBUG_ALLOC2
/* Must be at least 4 to cover all cases of refcount table growth */
#define REFCOUNT_CACHE_SIZE 4
+#define DEFAULT_CLUSTER_SIZE 65536
+
typedef struct QCowHeader {
uint32_t magic;
uint32_t version;
int64_t free_cluster_index;
int64_t free_byte_offset;
+ CoMutex lock;
+
uint32_t crypt_method; /* current crypt method, 0 if no key yet */
uint32_t crypt_method_header;
AES_KEY aes_encrypt_key;
int nb_available;
int nb_clusters;
struct QCowL2Meta *depends_on;
- QLIST_HEAD(QCowAioDependencies, QCowAIOCB) dependent_requests;
+ CoQueue dependent_requests;
QLIST_ENTRY(QCowL2Meta) next_in_flight;
} QCowL2Meta;
void qcow2_free_any_clusters(BlockDriverState *bs,
uint64_t cluster_offset, int nb_clusters);
-void qcow2_create_refcount_update(QCowCreateState *s, int64_t offset,
- int64_t size);
int qcow2_update_snapshot_refcount(BlockDriverState *bs,
int64_t l1_table_offset, int l1_size, int addend);
Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables,
bool writethrough);
int qcow2_cache_destroy(BlockDriverState* bs, Qcow2Cache *c);
+bool qcow2_cache_set_writethrough(BlockDriverState *bs, Qcow2Cache *c,
+ bool enable);
void qcow2_cache_entry_mark_dirty(Qcow2Cache *c, void *table);
int qcow2_cache_flush(BlockDriverState *bs, Qcow2Cache *c);