diff options
Diffstat (limited to 'drivers/block/loop/loop_file_fmt_qcow_main.h')
| -rw-r--r-- | drivers/block/loop/loop_file_fmt_qcow_main.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/loop/loop_file_fmt_qcow_main.h b/drivers/block/loop/loop_file_fmt_qcow_main.h index 8f2fa32cb422..9e4951fba079 100644 --- a/drivers/block/loop/loop_file_fmt_qcow_main.h +++ b/drivers/block/loop/loop_file_fmt_qcow_main.h @@ -83,6 +83,10 @@ do { \ #define QCOW_MIN_CLUSTER_BITS 9 #define QCOW_MAX_CLUSTER_BITS 21 +/* Defined in the qcow2 spec (compressed cluster descriptor) */ +#define QCOW_COMPRESSED_SECTOR_SIZE 512U +#define QCOW_COMPRESSED_SECTOR_MASK (~(QCOW_COMPRESSED_SECTOR_SIZE - 1)) + /* Must be at least 2 to cover COW */ #define QCOW_MIN_L2_CACHE_SIZE 2 /* cache entries */ |