Just for current code in nvme_cleanup_cmd(), we don't have to get
namespace instance, but we need controller instance.
Controller instance can be retrieved by namespace instance, but it can
be directly accessed by nvme_request instance from request.
ctrl = nvme_req(req)->ctrl;
We don't have to go around namespace instance from request instance
through gendisk.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
void nvme_cleanup_cmd(struct request *req)
{
if (req->rq_flags & RQF_SPECIAL_PAYLOAD) {
- struct nvme_ns *ns = req->rq_disk->private_data;
+ struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
struct page *page = req->special_vec.bv_page;
- if (page == ns->ctrl->discard_page)
- clear_bit_unlock(0, &ns->ctrl->discard_page_busy);
+ if (page == ctrl->discard_page)
+ clear_bit_unlock(0, &ctrl->discard_page_busy);
else
kfree(page_address(page) + req->special_vec.bv_offset);
}