diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2019-05-06 17:27:41 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-05-28 20:30:55 +0200 |
| commit | 8ac0f15f335b8b58e974fb7a9d193ba56ea18542 (patch) | |
| tree | 7f8fac90861d8f5f07dec5336f111cbd0212ab61 /block/qcow2.h | |
| parent | 5447c3a03f6775a99da6e36cc7eda09f293d7521 (diff) | |
qcow2: do encryption in threads
Do encryption/decryption in threads, like it is already done for
compression. This improves asynchronous encrypted io.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190506142741.41731-9-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 637552e137..e873ae5d12 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -268,6 +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; @@ -744,5 +746,11 @@ qcow2_co_compress(BlockDriverState *bs, void *dest, size_t dest_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 |