diff options
| -rw-r--r-- | drivers/nvme/host/ioctl.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 7a41caa9bfd2..81f5550b670d 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -95,8 +95,22 @@ static int nvme_map_user_request(struct request *req, u64 ubuffer, void *meta = NULL; int ret; - ret = blk_rq_map_user_io(req, NULL, nvme_to_user_ptr(ubuffer), bufflen, - GFP_KERNEL, vec, 0, 0, rq_data_dir(req)); + if (ioucmd && (ioucmd->flags & IORING_URING_CMD_FIXED)) { + struct iov_iter iter; + + /* fixedbufs is only for non-vectored io */ + if (WARN_ON_ONCE(vec)) + return -EINVAL; + ret = io_uring_cmd_import_fixed(ubuffer, bufflen, + rq_data_dir(req), &iter, ioucmd); + if (ret < 0) + goto out; + ret = blk_rq_map_user_iov(q, req, NULL, &iter, GFP_KERNEL); + } else { + ret = blk_rq_map_user_io(req, NULL, nvme_to_user_ptr(ubuffer), + bufflen, GFP_KERNEL, vec, 0, 0, + rq_data_dir(req)); + } if (ret) goto out; |