nblocks is zero based, so read path was missing the increment.
NVMe device that cuse represents can be of any block_size,
so rather than hardcoding 512 - actually verify it.
Both paths didn't request enough of a buffer from cuse.
Reported-by: Niklas Cassel
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I228dc2572bc94ecbcb913e950d912a7ab5be9434
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4037
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
ccdbd2ed51