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vvfat: Switch to .bdrv_co_block_status()

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We are gradually moving away from sector-based interfaces, towards
byte-based.  Update the vvfat driver accordingly.  Note that we
can rely on the block driver having already clamped limits to our
block size, and simplify accordingly.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Eric Blake 2018-02-13 14:27:00 -06:00 committed by Kevin Wolf
parent 2f83673b57
commit fba3998dae
1 changed files with 7 additions and 9 deletions
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16
block/vvfat.c
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@ -3088,15 +3088,13 @@ vvfat_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
return ret;
}
static int64_t coroutine_fn vvfat_co_get_block_status(BlockDriverState *bs,
int64_t sector_num, int nb_sectors, int *n, BlockDriverState **file)
static int coroutine_fn vvfat_co_block_status(BlockDriverState *bs,
bool want_zero, int64_t offset,
int64_t bytes, int64_t *n,
int64_t *map,
BlockDriverState **file)
{
*n = bs->total_sectors - sector_num;
if (*n > nb_sectors) {
*n = nb_sectors;
} else if (*n < 0) {
return 0;
}
*n = bytes;
return BDRV_BLOCK_DATA;
}
@ -3257,7 +3255,7 @@ static BlockDriver bdrv_vvfat = {
.bdrv_co_preadv = vvfat_co_preadv,
.bdrv_co_pwritev = vvfat_co_pwritev,
.bdrv_co_get_block_status = vvfat_co_get_block_status,
.bdrv_co_block_status = vvfat_co_block_status,
};
static void bdrv_vvfat_init(void)