tree 713f9e78c17354d097500c365f66342d09351115
parent 58b45602751ddf16e57170656670aa5a8f78eeca
author Ming Lin <ming.l@ssi.samsung.com> 1458631485 -0700
committer Jens Axboe <axboe@fb.com> 1460490240 -0600

nvme: rewrite discard support

This rewrites nvme_setup_discard() with blk_add_request_payload().
It allocates only the necessary amount(16 bytes) for the payload.

Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>