diff options
| -rw-r--r-- | drivers/block/null_blk/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index af419af9a0f4..c45d09a9a942 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -1945,6 +1945,11 @@ static int null_init_tag_set(struct nullb *nullb, struct blk_mq_tag_set *set) static int null_validate_conf(struct nullb_device *dev) { + if (dev->queue_mode == NULL_Q_RQ) { + pr_err("legacy IO path is no longer available\n"); + return -EINVAL; + } + dev->blocksize = round_down(dev->blocksize, 512); dev->blocksize = clamp_t(unsigned int, dev->blocksize, 512, 4096); |