diff options
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 8d92ef1fee..567375e56c 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -28,6 +28,7 @@ #include "crypto/block.h" #include "qemu/coroutine.h" #include "qemu/units.h" +#include "block/block_int.h" //#define DEBUG_ALLOC //#define DEBUG_ALLOC2 @@ -267,6 +268,8 @@ typedef struct Qcow2BitmapHeaderExt { uint64_t bitmap_directory_offset; } QEMU_PACKED Qcow2BitmapHeaderExt; +#define QCOW2_MAX_THREADS 4 + typedef struct BDRVQcow2State { int cluster_bits; int cluster_size; @@ -349,8 +352,8 @@ typedef struct BDRVQcow2State { char *image_backing_format; char *image_data_file; - CoQueue compress_wait_queue; - int nb_compress_threads; + CoQueue thread_task_queue; + int nb_threads; BdrvChild *data_file; } BDRVQcow2State; @@ -402,6 +405,12 @@ typedef struct QCowL2Meta */ Qcow2COWRegion cow_end; + /* + * Indicates that COW regions are already handled and do not require + * any more processing. + */ + bool skip_cow; + /** * The I/O vector with the data from the actual guest write request. * If non-NULL, this is meant to be merged together with the data @@ -737,4 +746,17 @@ void qcow2_remove_persistent_dirty_bitmap(BlockDriverState *bs, const char *name, Error **errp); +ssize_t coroutine_fn +qcow2_co_compress(BlockDriverState *bs, void *dest, size_t dest_size, + const void *src, size_t src_size); +ssize_t coroutine_fn +qcow2_co_decompress(BlockDriverState *bs, void *dest, size_t dest_size, + const void *src, size_t src_size); +int coroutine_fn +qcow2_co_encrypt(BlockDriverState *bs, uint64_t file_cluster_offset, + uint64_t offset, void *buf, size_t len); +int coroutine_fn +qcow2_co_decrypt(BlockDriverState *bs, uint64_t file_cluster_offset, + uint64_t offset, void *buf, size_t len); + #endif |