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parallels: Add data_start field to BDRVParallelsState 

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.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Denis V. Lunev <den@openvz.org>
This commit is contained in:
Alexander Ivanov 2023-07-18 12:44:27 +02:00 committed by Denis V. Lunev
parent 728e10173b
commit c0b154533e
2 changed files with 5 additions and 3 deletions
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7
block/parallels.c
View File

@ -868,10 +868,11 @@ 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

1
block/parallels.h
View File

@ -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;