block: Remove REQ_KERNEL

REQ_KERNEL is no longer used. Remove it and drop the redundant uio
argument to nfs_file_direct_{read,write}.

Signed-off-by: Martin K. Petersen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
5 files changed