On 7/1/23 12:07, Alexander Ivanov wrote:
In the next patch we will need the offset of the data area for host cluster index calculation. Add this field and setting up code.Signed-off-by: Alexander Ivanov <alexander.iva...@virtuozzo.com> --- block/parallels.c | 7 ++++--- block/parallels.h | 1 + 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 3cff25e3a4..374c9d17eb 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -864,10 +864,11 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags, ret = -ENOMEM; goto fail; } - s->data_end = le32_to_cpu(ph.data_off); - if (s->data_end == 0) { - s->data_end = DIV_ROUND_UP(size, BDRV_SECTOR_SIZE); + s->data_start = le32_to_cpu(ph.data_off); + if (s->data_start == 0) { + s->data_start = DIV_ROUND_UP(size, BDRV_SECTOR_SIZE); } + s->data_end = s->data_start; if (s->data_end < (s->header_size >> BDRV_SECTOR_BITS)) { /* there is not enough unused space to fit to block align between BAT and actual data. We can't avoid read-modify-write... */ diff --git a/block/parallels.h b/block/parallels.h index f22f43f988..4e53e9572d 100644 --- a/block/parallels.h +++ b/block/parallels.h @@ -75,6 +75,7 @@ typedef struct BDRVParallelsState { uint32_t *bat_bitmap; unsigned int bat_size;+ int64_t data_start;int64_t data_end; uint64_t prealloc_size; ParallelsPreallocMode prealloc_mode;
Reviewed-by: Denis V. Lunev <d...@openvz.org>
