On Sun, 16 Apr 2023 15:03:39 -0700, Chaitanya Kulkarni wrote:
> Make sure to check device queue mode in the null_validate_conf() and
> return error for NULL_Q_RQ as we don't allow legacy I/O path, without
> this patch we get OOPs when queue mode is set to 1 from configfs,
> following are repro steps :-
>
> modprobe null_blk nr_devices=0
> mkdir config/nullb/nullb0
> echo 1 > config/nullb/nullb0/memory_backed
> echo 4096 > config/nullb/nullb0/blocksize
> echo 20480 > config/nullb/nullb0/size
> echo 1 > config/nullb/nullb0/queue_mode
> echo 1 > config/nullb/nullb0/power
>
> [...]
Applied, thanks!
[1/1] null_blk: Always check queue mode setting from configfs
commit: 63f8793ee60513a09f110ea460a6ff2c33811cdb
Best regards,
--
Jens Axboe
