bec4042bae
Make bytes argument int64_t to be consistent with modern block-layer. Callers should be OK with it as type becomes wider. What is inside functions? - Conversion from int64_t to size_t. Still, we can't have a buffer larger than SIZE_MAX, therefore bytes should not be larger than SIZE_MAX as well. Add an assertion. - Passing to blk_co_pwritev() / blk_co_preadv() which already has int64_t bytes argument. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20211007175243.642516-2-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: spelling fix] Signed-off-by: Eric Blake <eblake@redhat.com>