We are gradually moving away from sector-based interfaces, towards
byte-based. Update the vpc driver accordingly.
Signed-off-by: Eric Blake <ebl...@redhat.com>
---
block/vpc.c | 31 +++++++++++++++----------------
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index ecfee77..3cd56e7 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -689,46 +689,45 @@ fail:
return ret;
}
-static int64_t coroutine_fn vpc_co_get_block_status(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors, int *pnum, BlockDriverState **file)
+static int64_t coroutine_fn vpc_co_block_status(BlockDriverState *bs,
+ int64_t offset, int64_t bytes, int64_t *pnum, BlockDriverState **file)
{
BDRVVPCState *s = bs->opaque;
VHDFooter *footer = (VHDFooter*) s->footer_buf;
- int64_t start, offset;
+ int64_t start, image_offset;
bool allocated;
int n;
if (be32_to_cpu(footer->type) == VHD_FIXED) {
- *pnum = nb_sectors;
+ *pnum = bytes;
*file = bs->file->bs;
return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | BDRV_BLOCK_DATA |
- (sector_num << BDRV_SECTOR_BITS);
+ (offset & BDRV_BLOCK_OFFSET_MASK);
}
- offset = get_sector_offset(bs, sector_num, 0);
- start = offset;
- allocated = (offset != -1);
+ image_offset = get_image_offset(bs, offset, 0);
+ start = image_offset & BDRV_BLOCK_OFFSET_MASK;
+ allocated = (image_offset != -1);
*pnum = 0;
do {
/* All sectors in a block are contiguous (without using the bitmap) */
- n = ROUND_UP(sector_num + 1, s->block_size / BDRV_SECTOR_SIZE)
- - sector_num;
- n = MIN(n, nb_sectors);
+ n = ROUND_UP(offset + 1, s->block_size) - offset;
+ n = MIN(n, bytes);
*pnum += n;
- sector_num += n;
- nb_sectors -= n;
+ offset += n;
+ bytes -= n;
/* *pnum can't be greater than one block for allocated
* sectors since there is always a bitmap in between. */
if (allocated) {
*file = bs->file->bs;
return BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID | start;
}
- if (nb_sectors == 0) {
+ if (bytes == 0) {
break;
}
- offset = get_sector_offset(bs, sector_num, 0);
+ image_offset = get_sector_offset(bs, offset, 0);
} while (offset == -1);
return 0;
@@ -1074,7 +1073,7 @@ static BlockDriver bdrv_vpc = {
.bdrv_co_preadv = vpc_co_preadv,
.bdrv_co_pwritev = vpc_co_pwritev,
- .bdrv_co_get_block_status = vpc_co_get_block_status,
+ .bdrv_co_block_status = vpc_co_block_status,
.bdrv_get_info = vpc_get_info,
--
2.9.3
